Basic constant folding implementation

66 files changed, 15219 insertions, 0 deletions

diff --git a/vendor/gmp-6.3.0/tests/mpz/Makefile.am b/vendor/gmp-6.3.0/tests/mpz/Makefile.am
new file mode 100644
index 0000000..5b5eb6d
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/Makefile.am
@@ -0,0 +1,43 @@
+## Process this file with automake to generate Makefile.in
+
+# Copyright 1996, 1997, 1999-2003, 2009, 2012 Free Software Foundation, Inc.
+#
+# This file is part of the GNU MP Library test suite.
+#
+# The GNU MP Library test suite is free software; you can redistribute it
+# and/or modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the License,
+# or (at your option) any later version.
+#
+# The GNU MP Library test suite is distributed in the hope that it will be
+# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.
+
+
+AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/tests
+AM_LDFLAGS = -no-install
+LDADD = $(top_builddir)/tests/libtests.la $(top_builddir)/libgmp.la
+
+check_PROGRAMS = reuse t-addsub t-cmp t-mul t-mul_i t-tdiv t-tdiv_ui t-fdiv \
+  t-fdiv_ui t-cdiv_ui t-gcd t-gcd_ui t-lcm t-invert dive dive_ui t-sqrtrem \
+  convert io t-inp_str logic t-bit t-powm t-powm_ui t-pow t-div_2exp      \
+  t-root t-perfsqr t-perfpow t-jac t-bin t-get_d t-get_d_2exp t-get_si	\
+  t-set_d t-set_si t-lucm						\
+  t-fac_ui t-mfac_uiui t-primorial_ui t-fib_ui t-lucnum_ui t-scan t-fits   \
+  t-divis t-divis_2exp t-cong t-cong_2exp t-sizeinbase t-set_str        \
+  t-aorsmul t-cmp_d t-cmp_si t-hamdist t-oddeven t-popcount t-set_f     \
+  t-io_raw t-import t-export t-pprime_p t-nextprime t-remove t-limbs
+
+TESTS = $(check_PROGRAMS)
+
+# Temporary files used by the tests.  Removed automatically if the tests
+# pass, but ensure they're cleaned if they fail.
+#
+CLEANFILES = *.tmp
+
+$(top_builddir)/tests/libtests.la:
+	cd $(top_builddir)/tests; $(MAKE) $(AM_MAKEFLAGS) libtests.la
diff --git a/vendor/gmp-6.3.0/tests/mpz/Makefile.in b/vendor/gmp-6.3.0/tests/mpz/Makefile.in
new file mode 100644
index 0000000..1071296
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/Makefile.in
@@ -0,0 +1,2059 @@
+# Makefile.in generated by automake 1.15 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2014 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Copyright 1996, 1997, 1999-2003, 2009, 2012 Free Software Foundation, Inc.
+#
+# This file is part of the GNU MP Library test suite.
+#
+# The GNU MP Library test suite is free software; you can redistribute it
+# and/or modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the License,
+# or (at your option) any later version.
+#
+# The GNU MP Library test suite is distributed in the hope that it will be
+# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.
+VPATH = @srcdir@
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+  fi; \
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+      *) echo "am__make_running_with_option: internal error: invalid" \
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+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
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+  strip_trailopt () \
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+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
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+	t-mul$(EXEEXT) t-mul_i$(EXEEXT) t-tdiv$(EXEEXT) \
+	t-tdiv_ui$(EXEEXT) t-fdiv$(EXEEXT) t-fdiv_ui$(EXEEXT) \
+	t-cdiv_ui$(EXEEXT) t-gcd$(EXEEXT) t-gcd_ui$(EXEEXT) \
+	t-lcm$(EXEEXT) t-invert$(EXEEXT) dive$(EXEEXT) \
+	dive_ui$(EXEEXT) t-sqrtrem$(EXEEXT) convert$(EXEEXT) \
+	io$(EXEEXT) t-inp_str$(EXEEXT) logic$(EXEEXT) t-bit$(EXEEXT) \
+	t-powm$(EXEEXT) t-powm_ui$(EXEEXT) t-pow$(EXEEXT) \
+	t-div_2exp$(EXEEXT) t-root$(EXEEXT) t-perfsqr$(EXEEXT) \
+	t-perfpow$(EXEEXT) t-jac$(EXEEXT) t-bin$(EXEEXT) \
+	t-get_d$(EXEEXT) t-get_d_2exp$(EXEEXT) t-get_si$(EXEEXT) \
+	t-set_d$(EXEEXT) t-set_si$(EXEEXT) t-lucm$(EXEEXT) \
+	t-fac_ui$(EXEEXT) t-mfac_uiui$(EXEEXT) t-primorial_ui$(EXEEXT) \
+	t-fib_ui$(EXEEXT) t-lucnum_ui$(EXEEXT) t-scan$(EXEEXT) \
+	t-fits$(EXEEXT) t-divis$(EXEEXT) t-divis_2exp$(EXEEXT) \
+	t-cong$(EXEEXT) t-cong_2exp$(EXEEXT) t-sizeinbase$(EXEEXT) \
+	t-set_str$(EXEEXT) t-aorsmul$(EXEEXT) t-cmp_d$(EXEEXT) \
+	t-cmp_si$(EXEEXT) t-hamdist$(EXEEXT) t-oddeven$(EXEEXT) \
+	t-popcount$(EXEEXT) t-set_f$(EXEEXT) t-io_raw$(EXEEXT) \
+	t-import$(EXEEXT) t-export$(EXEEXT) t-pprime_p$(EXEEXT) \
+	t-nextprime$(EXEEXT) t-remove$(EXEEXT) t-limbs$(EXEEXT)
+subdir = tests/mpz
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+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
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+convert_OBJECTS = convert.$(OBJEXT)
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+t_nextprime_OBJECTS = t-nextprime.$(OBJEXT)
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+t_nextprime_DEPENDENCIES = $(top_builddir)/tests/libtests.la \
+	$(top_builddir)/libgmp.la
+t_oddeven_SOURCES = t-oddeven.c
+t_oddeven_OBJECTS = t-oddeven.$(OBJEXT)
+t_oddeven_LDADD = $(LDADD)
+t_oddeven_DEPENDENCIES = $(top_builddir)/tests/libtests.la \
+	$(top_builddir)/libgmp.la
+t_perfpow_SOURCES = t-perfpow.c
+t_perfpow_OBJECTS = t-perfpow.$(OBJEXT)
+t_perfpow_LDADD = $(LDADD)
+t_perfpow_DEPENDENCIES = $(top_builddir)/tests/libtests.la \
+	$(top_builddir)/libgmp.la
+t_perfsqr_SOURCES = t-perfsqr.c
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+t_perfsqr_LDADD = $(LDADD)
+t_perfsqr_DEPENDENCIES = $(top_builddir)/tests/libtests.la \
+	$(top_builddir)/libgmp.la
+t_popcount_SOURCES = t-popcount.c
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+t_popcount_LDADD = $(LDADD)
+t_popcount_DEPENDENCIES = $(top_builddir)/tests/libtests.la \
+	$(top_builddir)/libgmp.la
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+	$(top_builddir)/libgmp.la
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+t_powm_OBJECTS = t-powm.$(OBJEXT)
+t_powm_LDADD = $(LDADD)
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+	$(AM_V_CCLD)$(LINK) $(t_fdiv_ui_OBJECTS) $(t_fdiv_ui_LDADD) $(LIBS)
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+	@rm -f t-fib_ui$(EXEEXT)
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+	@rm -f t-gcd$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(t_gcd_OBJECTS) $(t_gcd_LDADD) $(LIBS)
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+	@rm -f t-gcd_ui$(EXEEXT)
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+	@rm -f t-get_d_2exp$(EXEEXT)
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+	$(AM_V_CCLD)$(LINK) $(t_set_str_OBJECTS) $(t_set_str_LDADD) $(LIBS)
+
+t-sizeinbase$(EXEEXT): $(t_sizeinbase_OBJECTS) $(t_sizeinbase_DEPENDENCIES) $(EXTRA_t_sizeinbase_DEPENDENCIES) 
+	@rm -f t-sizeinbase$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(t_sizeinbase_OBJECTS) $(t_sizeinbase_LDADD) $(LIBS)
+
+t-sqrtrem$(EXEEXT): $(t_sqrtrem_OBJECTS) $(t_sqrtrem_DEPENDENCIES) $(EXTRA_t_sqrtrem_DEPENDENCIES) 
+	@rm -f t-sqrtrem$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(t_sqrtrem_OBJECTS) $(t_sqrtrem_LDADD) $(LIBS)
+
+t-tdiv$(EXEEXT): $(t_tdiv_OBJECTS) $(t_tdiv_DEPENDENCIES) $(EXTRA_t_tdiv_DEPENDENCIES) 
+	@rm -f t-tdiv$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(t_tdiv_OBJECTS) $(t_tdiv_LDADD) $(LIBS)
+
+t-tdiv_ui$(EXEEXT): $(t_tdiv_ui_OBJECTS) $(t_tdiv_ui_DEPENDENCIES) $(EXTRA_t_tdiv_ui_DEPENDENCIES) 
+	@rm -f t-tdiv_ui$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(t_tdiv_ui_OBJECTS) $(t_tdiv_ui_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+.c.o:
+	$(AM_V_CC)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+	$(AM_V_CC)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+	$(AM_V_CC)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+# Recover from deleted '.trs' file; this should ensure that
+# "rm -f foo.log; make foo.trs" re-run 'foo.test', and re-create
+# both 'foo.log' and 'foo.trs'.  Break the recipe in two subshells
+# to avoid problems with "make -n".
+.log.trs:
+	rm -f $< $@
+	$(MAKE) $(AM_MAKEFLAGS) $<
+
+# Leading 'am--fnord' is there to ensure the list of targets does not
+# expand to empty, as could happen e.g. with make check TESTS=''.
+am--fnord $(TEST_LOGS) $(TEST_LOGS:.log=.trs): $(am__force_recheck)
+am--force-recheck:
+	@:
+
+$(TEST_SUITE_LOG): $(TEST_LOGS)
+	@$(am__set_TESTS_bases); \
+	am__f_ok () { test -f "$$1" && test -r "$$1"; }; \
+	redo_bases=`for i in $$bases; do \
+	              am__f_ok $$i.trs && am__f_ok $$i.log || echo $$i; \
+	            done`; \
+	if test -n "$$redo_bases"; then \
+	  redo_logs=`for i in $$redo_bases; do echo $$i.log; done`; \
+	  redo_results=`for i in $$redo_bases; do echo $$i.trs; done`; \
+	  if $(am__make_dryrun); then :; else \
+	    rm -f $$redo_logs && rm -f $$redo_results || exit 1; \
+	  fi; \
+	fi; \
+	if test -n "$$am__remaking_logs"; then \
+	  echo "fatal: making $(TEST_SUITE_LOG): possible infinite" \
+	       "recursion detected" >&2; \
+	elif test -n "$$redo_logs"; then \
+	  am__remaking_logs=yes $(MAKE) $(AM_MAKEFLAGS) $$redo_logs; \
+	fi; \
+	if $(am__make_dryrun); then :; else \
+	  st=0;  \
+	  errmsg="fatal: making $(TEST_SUITE_LOG): failed to create"; \
+	  for i in $$redo_bases; do \
+	    test -f $$i.trs && test -r $$i.trs \
+	      || { echo "$$errmsg $$i.trs" >&2; st=1; }; \
+	    test -f $$i.log && test -r $$i.log \
+	      || { echo "$$errmsg $$i.log" >&2; st=1; }; \
+	  done; \
+	  test $$st -eq 0 || exit 1; \
+	fi
+	@$(am__sh_e_setup); $(am__tty_colors); $(am__set_TESTS_bases); \
+	ws='[ 	]'; \
+	results=`for b in $$bases; do echo $$b.trs; done`; \
+	test -n "$$results" || results=/dev/null; \
+	all=`  grep "^$$ws*:test-result:"           $$results | wc -l`; \
+	pass=` grep "^$$ws*:test-result:$$ws*PASS"  $$results | wc -l`; \
+	fail=` grep "^$$ws*:test-result:$$ws*FAIL"  $$results | wc -l`; \
+	skip=` grep "^$$ws*:test-result:$$ws*SKIP"  $$results | wc -l`; \
+	xfail=`grep "^$$ws*:test-result:$$ws*XFAIL" $$results | wc -l`; \
+	xpass=`grep "^$$ws*:test-result:$$ws*XPASS" $$results | wc -l`; \
+	error=`grep "^$$ws*:test-result:$$ws*ERROR" $$results | wc -l`; \
+	if test `expr $$fail + $$xpass + $$error` -eq 0; then \
+	  success=true; \
+	else \
+	  success=false; \
+	fi; \
+	br='==================='; br=$$br$$br$$br$$br; \
+	result_count () \
+	{ \
+	    if test x"$$1" = x"--maybe-color"; then \
+	      maybe_colorize=yes; \
+	    elif test x"$$1" = x"--no-color"; then \
+	      maybe_colorize=no; \
+	    else \
+	      echo "$@: invalid 'result_count' usage" >&2; exit 4; \
+	    fi; \
+	    shift; \
+	    desc=$$1 count=$$2; \
+	    if test $$maybe_colorize = yes && test $$count -gt 0; then \
+	      color_start=$$3 color_end=$$std; \
+	    else \
+	      color_start= color_end=; \
+	    fi; \
+	    echo "$${color_start}# $$desc $$count$${color_end}"; \
+	}; \
+	create_testsuite_report () \
+	{ \
+	  result_count $$1 "TOTAL:" $$all   "$$brg"; \
+	  result_count $$1 "PASS: " $$pass  "$$grn"; \
+	  result_count $$1 "SKIP: " $$skip  "$$blu"; \
+	  result_count $$1 "XFAIL:" $$xfail "$$lgn"; \
+	  result_count $$1 "FAIL: " $$fail  "$$red"; \
+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
+	  echo;								\
+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS:
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	trs_list=`for i in $$bases; do echo $$i.trs; done`; \
+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all $(check_PROGRAMS)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+reuse.log: reuse$(EXEEXT)
+	@p='reuse$(EXEEXT)'; \
+	b='reuse'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-addsub.log: t-addsub$(EXEEXT)
+	@p='t-addsub$(EXEEXT)'; \
+	b='t-addsub'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-cmp.log: t-cmp$(EXEEXT)
+	@p='t-cmp$(EXEEXT)'; \
+	b='t-cmp'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-mul.log: t-mul$(EXEEXT)
+	@p='t-mul$(EXEEXT)'; \
+	b='t-mul'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-mul_i.log: t-mul_i$(EXEEXT)
+	@p='t-mul_i$(EXEEXT)'; \
+	b='t-mul_i'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-tdiv.log: t-tdiv$(EXEEXT)
+	@p='t-tdiv$(EXEEXT)'; \
+	b='t-tdiv'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-tdiv_ui.log: t-tdiv_ui$(EXEEXT)
+	@p='t-tdiv_ui$(EXEEXT)'; \
+	b='t-tdiv_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-fdiv.log: t-fdiv$(EXEEXT)
+	@p='t-fdiv$(EXEEXT)'; \
+	b='t-fdiv'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-fdiv_ui.log: t-fdiv_ui$(EXEEXT)
+	@p='t-fdiv_ui$(EXEEXT)'; \
+	b='t-fdiv_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-cdiv_ui.log: t-cdiv_ui$(EXEEXT)
+	@p='t-cdiv_ui$(EXEEXT)'; \
+	b='t-cdiv_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-gcd.log: t-gcd$(EXEEXT)
+	@p='t-gcd$(EXEEXT)'; \
+	b='t-gcd'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-gcd_ui.log: t-gcd_ui$(EXEEXT)
+	@p='t-gcd_ui$(EXEEXT)'; \
+	b='t-gcd_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-lcm.log: t-lcm$(EXEEXT)
+	@p='t-lcm$(EXEEXT)'; \
+	b='t-lcm'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-invert.log: t-invert$(EXEEXT)
+	@p='t-invert$(EXEEXT)'; \
+	b='t-invert'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+dive.log: dive$(EXEEXT)
+	@p='dive$(EXEEXT)'; \
+	b='dive'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+dive_ui.log: dive_ui$(EXEEXT)
+	@p='dive_ui$(EXEEXT)'; \
+	b='dive_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-sqrtrem.log: t-sqrtrem$(EXEEXT)
+	@p='t-sqrtrem$(EXEEXT)'; \
+	b='t-sqrtrem'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+convert.log: convert$(EXEEXT)
+	@p='convert$(EXEEXT)'; \
+	b='convert'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+io.log: io$(EXEEXT)
+	@p='io$(EXEEXT)'; \
+	b='io'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-inp_str.log: t-inp_str$(EXEEXT)
+	@p='t-inp_str$(EXEEXT)'; \
+	b='t-inp_str'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+logic.log: logic$(EXEEXT)
+	@p='logic$(EXEEXT)'; \
+	b='logic'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-bit.log: t-bit$(EXEEXT)
+	@p='t-bit$(EXEEXT)'; \
+	b='t-bit'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-powm.log: t-powm$(EXEEXT)
+	@p='t-powm$(EXEEXT)'; \
+	b='t-powm'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-powm_ui.log: t-powm_ui$(EXEEXT)
+	@p='t-powm_ui$(EXEEXT)'; \
+	b='t-powm_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-pow.log: t-pow$(EXEEXT)
+	@p='t-pow$(EXEEXT)'; \
+	b='t-pow'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-div_2exp.log: t-div_2exp$(EXEEXT)
+	@p='t-div_2exp$(EXEEXT)'; \
+	b='t-div_2exp'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-root.log: t-root$(EXEEXT)
+	@p='t-root$(EXEEXT)'; \
+	b='t-root'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-perfsqr.log: t-perfsqr$(EXEEXT)
+	@p='t-perfsqr$(EXEEXT)'; \
+	b='t-perfsqr'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-perfpow.log: t-perfpow$(EXEEXT)
+	@p='t-perfpow$(EXEEXT)'; \
+	b='t-perfpow'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-jac.log: t-jac$(EXEEXT)
+	@p='t-jac$(EXEEXT)'; \
+	b='t-jac'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-bin.log: t-bin$(EXEEXT)
+	@p='t-bin$(EXEEXT)'; \
+	b='t-bin'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-get_d.log: t-get_d$(EXEEXT)
+	@p='t-get_d$(EXEEXT)'; \
+	b='t-get_d'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-get_d_2exp.log: t-get_d_2exp$(EXEEXT)
+	@p='t-get_d_2exp$(EXEEXT)'; \
+	b='t-get_d_2exp'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	@p='t-get_si$(EXEEXT)'; \
+	b='t-get_si'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	@p='t-set_d$(EXEEXT)'; \
+	b='t-set_d'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	@p='t-set_si$(EXEEXT)'; \
+	b='t-set_si'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+t-lucm.log: t-lucm$(EXEEXT)
+	@p='t-lucm$(EXEEXT)'; \
+	b='t-lucm'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	@p='t-fac_ui$(EXEEXT)'; \
+	b='t-fac_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	@p='t-mfac_uiui$(EXEEXT)'; \
+	b='t-mfac_uiui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+t-primorial_ui.log: t-primorial_ui$(EXEEXT)
+	@p='t-primorial_ui$(EXEEXT)'; \
+	b='t-primorial_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	b='t-fib_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+t-lucnum_ui.log: t-lucnum_ui$(EXEEXT)
+	@p='t-lucnum_ui$(EXEEXT)'; \
+	b='t-lucnum_ui'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	@p='t-scan$(EXEEXT)'; \
+	b='t-scan'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	@p='t-fits$(EXEEXT)'; \
+	b='t-fits'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	@p='t-divis$(EXEEXT)'; \
+	b='t-divis'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-divis_2exp'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-cong'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-set_str'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-aorsmul'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-cmp_d'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-hamdist'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-oddeven'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	b='t-popcount'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
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+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
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+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
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+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-TESTS check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	recheck tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+$(top_builddir)/tests/libtests.la:
+	cd $(top_builddir)/tests; $(MAKE) $(AM_MAKEFLAGS) libtests.la
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/vendor/gmp-6.3.0/tests/mpz/convert.c b/vendor/gmp-6.3.0/tests/mpz/convert.c
new file mode 100644
index 0000000..c449c66
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/convert.c
@@ -0,0 +1,186 @@
+/* Test conversion using mpz_get_str and mpz_set_str.
+
+Copyright 1993, 1994, 1996, 1999-2002, 2006, 2007, 2020 Free Software
+Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h> /* for strlen */
+#include <ctype.h> /* for tolower */
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void debug_mp (mpz_t, int);
+
+static int str_casecmp (const char *, const char *);
+
+void
+string_urandomb (char *bp, size_t len, int base, gmp_randstate_ptr rands)
+{
+  mpz_t bs;
+  unsigned long bsi;
+  int d, l;
+  const char *collseq = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+  mpz_init (bs);
+
+  mpz_urandomb (bs, rands, 32);
+  bsi = mpz_get_ui (bs);
+  d = bsi % base;
+  while (len != 0)
+    {
+      l = (bsi >> 16) % 20;
+      l = MIN (l, len);
+
+      memset (bp, collseq[d], l);
+
+      len -= l;
+      bp += l;
+
+      mpz_urandomb (bs, rands, 32);
+      bsi = mpz_get_ui (bs);
+      d = bsi & 0xfff;
+      if (d >= base)
+	d = 0;
+    }
+
+  bp[0] = '\0';
+  mpz_clear (bs);
+}
+
+int
+main (int argc, char **argv)
+{
+  mpz_t op1, op2;
+  mp_size_t size;
+  int i;
+  int reps = 2000;
+  char *str, *buf, *bp;
+  int base;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  size_t len;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (op1);
+  mpz_init (op2);
+
+  for (i = 0; i < reps; i++)
+    {
+      /* 1. Generate random mpz_t and convert to a string and back to mpz_t
+	 again.  */
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 17 + 2;	/* 2..18 */
+      mpz_urandomb (bs, rands, size_range);	/* 3..262144 bits */
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (op1, rands, size);
+
+      mpz_urandomb (bs, rands, 1);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (op1, op1);
+
+      mpz_urandomb (bs, rands, 32);
+      bsi = mpz_get_ui (bs);
+      base = bsi % 62 + 1;
+      if (base == 1)
+	base = 0;
+
+      str = mpz_get_str ((char *) 0, base, op1);
+      mpz_set_str_or_abort (op2, str, base);
+
+      if (mpz_cmp (op1, op2))
+	{
+	  fprintf (stderr, "ERROR, op1 and op2 different in test %d\n", i);
+	  fprintf (stderr, "str  = %s\n", str);
+	  fprintf (stderr, "base = %d\n", base);
+	  fprintf (stderr, "op1  = "); debug_mp (op1, -16);
+	  fprintf (stderr, "op2  = "); debug_mp (op2, -16);
+	  abort ();
+	}
+
+      (*__gmp_free_func) (str, strlen (str) + 1);
+
+      /* 2. Generate random string and convert to mpz_t and back to a string
+	 again.  */
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 1;	/* 1..16 */
+      mpz_urandomb (bs, rands, size_range);	/* 1..65536 digits */
+      len = mpz_get_ui (bs) + 1;
+      buf = (char *) (*__gmp_allocate_func) (len + 1);
+      if (base == 0)
+	base = 10;
+      string_urandomb (buf, len, base, rands);
+
+      mpz_set_str_or_abort (op1, buf, base);
+      str = mpz_get_str ((char *) 0, base, op1);
+
+      /* Skip over leading zeros, but don't leave the string at zero length. */
+      for (bp = buf; bp[0] == '0' && bp[1] != '\0'; bp++)
+	;
+
+      if (str_casecmp (str, bp) != 0)
+	{
+	  fprintf (stderr, "ERROR, str and buf different in test %d\n", i);
+	  fprintf (stderr, "str  = %s\n", str);
+	  fprintf (stderr, "buf  = %s\n", buf);
+	  fprintf (stderr, "base = %d\n", base);
+	  fprintf (stderr, "op1  = "); debug_mp (op1, -16);
+	  abort ();
+	}
+
+      (*__gmp_free_func) (buf, len + 1);
+      (*__gmp_free_func) (str, strlen (str) + 1);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (op1);
+  mpz_clear (op2);
+
+  tests_end ();
+  exit (0);
+}
+
+/* This is similar to POSIX strcasecmp except that we don't do the comparison
+   with unsigned char.  We avoid strcasecmp for C standard conformance.  */
+static int
+str_casecmp (const char *s1, const char *s2)
+{
+  size_t i;
+  for (i = 0;; i++)
+    {
+      int c1 = s1[i];
+      int c2 = s2[i];
+      if (c1 == 0 || tolower (c1) != tolower (c2))
+	return c1 - c2;
+    }
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/dive.c b/vendor/gmp-6.3.0/tests/mpz/dive.c
new file mode 100644
index 0000000..99e8caf
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/dive.c
@@ -0,0 +1,100 @@
+/* Test mpz_mul, mpz_divexact.
+
+Copyright 1996, 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+int
+main (int argc, char **argv)
+{
+  mpz_t op1, op2;
+  mpz_t prod, quot;
+  mp_size_t size;
+  int i;
+  int reps = 5000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mp_trace_base = -16;
+
+  mpz_init (bs);
+
+  mpz_init (op1);
+  mpz_init (op2);
+  mpz_init (prod);
+  mpz_init (quot);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 17 + 2; /* 0..2047 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (op1, rands, size);
+
+      do
+	{
+	  mpz_urandomb (bs, rands, size_range);
+	  size = mpz_get_ui (bs);
+	  mpz_rrandomb (op2, rands, size);
+	}
+      while (mpz_sgn (op2) == 0);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (op1, op1);
+      if ((bsi & 2) != 0)
+	mpz_neg (op2, op2);
+
+      mpz_mul (prod, op1, op2);
+
+      mpz_divexact (quot, prod, op2);
+      MPZ_CHECK_FORMAT (quot);
+
+      if (mpz_cmp (quot, op1) != 0)
+        {
+          printf ("Wrong results:\n");
+          mpz_trace ("  got     ", quot);
+          mpz_trace ("  want    ", op1);
+          mpz_trace ("  dividend", prod);
+          mpz_trace ("  divisor ", op2);
+          abort ();
+        }
+    }
+
+  mpz_clear (bs);
+  mpz_clear (op1);
+  mpz_clear (op2);
+  mpz_clear (prod);
+  mpz_clear (quot);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/dive_ui.c b/vendor/gmp-6.3.0/tests/mpz/dive_ui.c
new file mode 100644
index 0000000..8f74bce
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/dive_ui.c
@@ -0,0 +1,86 @@
+/* Test mpz_divexact_ui.
+
+Copyright 1996, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_random (int argc, char *argv[])
+{
+  gmp_randstate_ptr rands = RANDS;
+  int    reps = 500000;
+  mpz_t  a, q, got;
+  int    i, qneg;
+  unsigned long  d;
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (a);
+  mpz_init (q);
+  mpz_init (got);
+
+  for (i = 0; i < reps; i++)
+    {
+      do
+	d = (unsigned long) urandom();
+      while (d == 0);
+      mpz_erandomb (q, rands, 512);
+      mpz_mul_ui (a, q, d);
+
+      for (qneg = 0; qneg <= 1; qneg++)
+        {
+          mpz_divexact_ui (got, a, d);
+          MPZ_CHECK_FORMAT (got);
+          if (mpz_cmp (got, q) != 0)
+            {
+              printf    ("mpz_divexact_ui wrong\n");
+              mpz_trace ("    a", a);
+              printf    ("    d=%lu\n", d);
+              mpz_trace ("    q", q);
+              mpz_trace ("  got", got);
+              abort ();
+            }
+
+          mpz_neg (q, q);
+          mpz_neg (a, a);
+        }
+
+    }
+
+  mpz_clear (a);
+  mpz_clear (q);
+  mpz_clear (got);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  tests_start ();
+
+  check_random (argc, argv);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/io.c b/vendor/gmp-6.3.0/tests/mpz/io.c
new file mode 100644
index 0000000..3522e9d
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/io.c
@@ -0,0 +1,151 @@
+/* Test conversion and I/O using mpz_out_str and mpz_inp_str.
+
+Copyright 1993, 1994, 1996, 2000, 2001, 2012, 2020 Free Software
+Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>		/* for unlink */
+#endif
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#define FILENAME  "io.tmp"
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stdout, base, x); fputc ('\n', stdout);
+}
+
+int
+main (int argc, char **argv)
+{
+  mpz_t  op1, op2;
+  mp_size_t size;
+  int i;
+  int reps = 10000;
+  FILE *fp;
+  int base, base_out;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  size_t nread;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (op1);
+  mpz_init (op2);
+
+  fp = fopen (FILENAME, "w+");
+
+  if (mpz_out_str (fp, 63, op1) != 0)
+    {
+      printf ("mpz_out_str did not return 0 (error) with base > 62\n");
+      abort ();
+    }
+
+  if (mpz_out_str (fp, -37, op1) != 0)
+    {
+      printf ("mpz_out_str did not return 0 (error) with base < -37\n");
+      abort ();
+    }
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (op1, rands, size);
+      mpz_urandomb (bs, rands, 1);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (op1, op1);
+
+      mpz_urandomb (bs, rands, 16);
+      bsi = mpz_get_ui (bs);
+      base = bsi % 62 + 1;
+      if (base == 1)
+	base = 0;
+
+      if (i % 2 == 0 && base <= 36)
+	base_out = -base;
+      else
+	base_out = base;
+
+      rewind (fp);
+      if (mpz_out_str (fp, base_out, op1) == 0
+	  || putc (' ', fp) == EOF
+	  || fflush (fp) != 0)
+	{
+	  printf ("mpz_out_str write error\n");
+	  abort ();
+	}
+
+      rewind (fp);
+      nread = mpz_inp_str (op2, fp, base);
+      if (nread == 0)
+	{
+	  if (ferror (fp))
+	    printf ("mpz_inp_str stream read error\n");
+	  else
+	    printf ("mpz_inp_str data conversion error\n");
+	  abort ();
+	}
+
+      if (nread != ftell(fp))
+	{
+	  printf ("mpz_inp_str nread doesn't match ftell\n");
+	  printf ("  nread  %lu\n", (unsigned long) nread);
+	  printf ("  ftell  %ld\n", ftell(fp));
+	  abort ();
+	}
+
+      if (mpz_cmp (op1, op2))
+	{
+	  printf ("ERROR\n");
+	  printf ("op1  = "); debug_mp (op1, -16);
+	  printf ("op2  = "); debug_mp (op2, -16);
+	  printf ("base = %d\n", base);
+	  abort ();
+	}
+    }
+
+  fclose (fp);
+
+  unlink (FILENAME);
+
+  mpz_clear (bs);
+  mpz_clear (op1);
+  mpz_clear (op2);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/logic.c b/vendor/gmp-6.3.0/tests/mpz/logic.c
new file mode 100644
index 0000000..f3b38b1
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/logic.c
@@ -0,0 +1,194 @@
+/* Test mpz_com, mpz_and, mpz_ior, and mpz_xor.
+
+Copyright 1993, 1994, 1996, 1997, 2001, 2013 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (void);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t x, y, r1, r2;
+  mpz_t t1, t2, t3;
+  mp_size_t xsize, ysize;
+  int i;
+  int reps = 100000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (x);
+  mpz_init (y);
+  mpz_init (r1);
+  mpz_init (r2);
+  mpz_init (t1);
+  mpz_init (t2);
+  mpz_init (t3);
+
+  mpz_set_si (x, -1);
+  mpz_set_ui (y, 0);
+  for (i = 0; i < 300; i++)
+    {
+      mpz_mul_2exp (x, x, 1);
+
+      mpz_and (r1, x, x);
+      MPZ_CHECK_FORMAT (r1);
+      if (mpz_cmp (r1, x) != 0)
+	dump_abort ();
+
+      mpz_ior (r2, x, x);
+      MPZ_CHECK_FORMAT (r2);
+      if (mpz_cmp (r2, x) != 0)
+	dump_abort ();
+
+      mpz_xor (t1, x, x);
+      MPZ_CHECK_FORMAT (t1);
+      if (mpz_cmp_si (t1, 0) != 0)
+	dump_abort ();
+
+      mpz_ior (t1, x, y);
+      MPZ_CHECK_FORMAT (t1);
+      if (mpz_cmp (t1, x) != 0)
+	dump_abort ();
+
+      mpz_xor (t2, x, y);
+      MPZ_CHECK_FORMAT (t2);
+      if (mpz_cmp (t2, x) != 0)
+	dump_abort ();
+
+      mpz_com (t2, x);
+      MPZ_CHECK_FORMAT (t2);
+      mpz_xor (t3, t2, x);
+      MPZ_CHECK_FORMAT (t3);
+      if (mpz_cmp_si (t3, -1) != 0)
+	dump_abort ();
+    }
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 8 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      xsize = mpz_get_ui (bs);
+      mpz_rrandomb (x, rands, xsize);
+      mpz_urandomb (bs, rands, 1);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (x, x);
+
+      mpz_urandomb (bs, rands, size_range);
+      ysize = mpz_get_ui (bs);
+      mpz_rrandomb (y, rands, ysize);
+      mpz_urandomb (bs, rands, 1);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (y, y);
+
+      mpz_com (r1, x);
+      MPZ_CHECK_FORMAT (r1);
+      mpz_com (r1, r1);
+      MPZ_CHECK_FORMAT (r1);
+      if (mpz_cmp (r1, x) != 0)
+	dump_abort ();
+
+      mpz_com (r1, y);
+      MPZ_CHECK_FORMAT (r1);
+      mpz_com (r2, r1);
+      MPZ_CHECK_FORMAT (r2);
+      if (mpz_cmp (r2, y) != 0)
+	dump_abort ();
+
+      mpz_com (t1, x);
+      MPZ_CHECK_FORMAT (t1);
+      mpz_com (t2, y);
+      MPZ_CHECK_FORMAT (t2);
+      mpz_and (t3, t1, t2);
+      MPZ_CHECK_FORMAT (t3);
+      mpz_com (r1, t3);
+      MPZ_CHECK_FORMAT (r1);
+      mpz_ior (r2, x, y);
+      MPZ_CHECK_FORMAT (r2);
+      if (mpz_cmp (r1, r2) != 0)
+	dump_abort ();
+
+      mpz_com (t1, x);
+      MPZ_CHECK_FORMAT (t1);
+      mpz_com (t2, y);
+      MPZ_CHECK_FORMAT (t2);
+      mpz_ior (t3, t1, t2);
+      MPZ_CHECK_FORMAT (t3);
+      mpz_com (r1, t3);
+      MPZ_CHECK_FORMAT (r1);
+      mpz_and (r2, x, y);
+      MPZ_CHECK_FORMAT (r2);
+      if (mpz_cmp (r1, r2) != 0)
+	dump_abort ();
+
+      mpz_ior (t1, x, y);
+      MPZ_CHECK_FORMAT (t1);
+      mpz_and (t2, x, y);
+      MPZ_CHECK_FORMAT (t2);
+      mpz_com (t3, t2);
+      MPZ_CHECK_FORMAT (t3);
+      mpz_and (r1, t1, t3);
+      MPZ_CHECK_FORMAT (r1);
+      mpz_xor (r2, x, y);
+      MPZ_CHECK_FORMAT (r2);
+      if (mpz_cmp (r1, r2) != 0)
+	dump_abort ();
+    }
+
+  mpz_clear (bs);
+  mpz_clear (x);
+  mpz_clear (y);
+  mpz_clear (r1);
+  mpz_clear (r2);
+  mpz_clear (t1);
+  mpz_clear (t2);
+  mpz_clear (t3);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort ()
+{
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/reuse.c b/vendor/gmp-6.3.0/tests/mpz/reuse.c
new file mode 100644
index 0000000..a8f2201
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/reuse.c
@@ -0,0 +1,786 @@
+/* Test that routines allow reusing a source variable as destination.
+
+   Test all relevant functions except:
+	mpz_bin_ui
+	mpz_nextprime
+	mpz_mul_si
+	mpz_addmul_ui (should this really allow a+=a*c?)
+
+Copyright 1996, 1999-2002, 2009, 2012, 2013, 2016, 2020 Free Software
+Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#if __GMP_LIBGMP_DLL
+
+/* FIXME: When linking to a DLL libgmp, mpz_add etc can't be used as
+   initializers for global variables because they're effectively global
+   variables (function pointers) themselves.  Perhaps calling a test
+   function successively with mpz_add etc would be better.  */
+
+int
+main (void)
+{
+  printf ("Test suppressed for windows DLL\n");
+  exit (0);
+}
+
+
+#else /* ! DLL_EXPORT */
+
+void dump (const char *, mpz_t, mpz_t, mpz_t);
+
+typedef void (*dss_func) (mpz_ptr, mpz_srcptr, mpz_srcptr);
+typedef void (*dsi_func) (mpz_ptr, mpz_srcptr, unsigned long int);
+typedef unsigned long int (*dsi_div_func) (mpz_ptr, mpz_srcptr, unsigned long int);
+typedef unsigned long int (*ddsi_div_func) (mpz_ptr, mpz_ptr, mpz_srcptr, unsigned long int);
+typedef void (*ddss_div_func) (mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr);
+typedef void (*ds_func) (mpz_ptr, mpz_srcptr);
+
+
+void
+mpz_xinvert (mpz_ptr r, mpz_srcptr a, mpz_srcptr b)
+{
+  int res;
+  res = mpz_invert (r, a, b);
+  if (res == 0)
+    mpz_set_ui (r, 0);
+}
+
+struct {
+  dss_func fptr;
+  const char *fname;
+  int isdivision;
+  int isslow;
+} static dss[] =
+  { { mpz_add,     "mpz_add",	  0, 0 },
+    { mpz_sub,     "mpz_sub",	  0, 0 },
+    { mpz_mul,     "mpz_mul",	  0, 0 },
+    { mpz_cdiv_q,  "mpz_cdiv_q",  1, 0 },
+    { mpz_cdiv_r,  "mpz_cdiv_r",  1, 0 },
+    { mpz_fdiv_q,  "mpz_fdiv_q",  1, 0 },
+    { mpz_fdiv_r,  "mpz_fdiv_r",  1, 0 },
+    { mpz_tdiv_q,  "mpz_tdiv_q",  1, 0 },
+    { mpz_tdiv_r,  "mpz_tdiv_r",  1, 0 },
+    { mpz_mod,     "mpz_mod",	  1, 0 },
+    { mpz_xinvert, "mpz_xinvert", 1, 1 },
+    { mpz_gcd,     "mpz_gcd",	  0, 1 },
+    { mpz_lcm,     "mpz_lcm",	  0, 1 },
+    { mpz_and,     "mpz_and",	  0, 0 },
+    { mpz_ior,     "mpz_ior",	  0, 0 },
+    { mpz_xor,     "mpz_xor",     0, 0 }
+  };
+
+
+struct {
+  dsi_func fptr;
+  const char *fname;
+  int mod;
+} static dsi[] =
+{
+  /* Don't change order here without changing the code in main(). */
+  { mpz_add_ui,         "mpz_add_ui",	     0 },
+  { mpz_mul_ui,		"mpz_mul_ui",	     0 },
+  { mpz_sub_ui,		"mpz_sub_ui",	     0 },
+  { mpz_fdiv_q_2exp,    "mpz_fdiv_q_2exp",   0x1000 },
+  { mpz_fdiv_r_2exp,    "mpz_fdiv_r_2exp",   0x1000 },
+  { mpz_cdiv_q_2exp,    "mpz_cdiv_q_2exp",   0x1000 },
+  { mpz_cdiv_r_2exp,    "mpz_cdiv_r_2exp",   0x1000 },
+  { mpz_tdiv_q_2exp,    "mpz_tdiv_q_2exp",   0x1000 },
+  { mpz_tdiv_r_2exp,    "mpz_tdiv_r_2exp",   0x1000 },
+  { mpz_mul_2exp,	"mpz_mul_2exp",      0x100 },
+  { mpz_pow_ui,		"mpz_pow_ui",        0x10 }
+};
+
+struct {
+  dsi_div_func fptr;
+  const char *fname;
+} static dsi_div[] =
+{
+  { mpz_cdiv_q_ui,       "mpz_cdiv_q_ui" },
+  { mpz_cdiv_r_ui,       "mpz_cdiv_r_ui" },
+  { mpz_fdiv_q_ui,       "mpz_fdiv_q_ui" },
+  { mpz_fdiv_r_ui,       "mpz_fdiv_r_ui" },
+  { mpz_tdiv_q_ui,       "mpz_tdiv_q_ui" },
+  { mpz_tdiv_r_ui,       "mpz_tdiv_r_ui" }
+};
+
+struct {
+  ddsi_div_func fptr;
+  const char *fname;
+  int isslow;
+} static ddsi_div[] =
+{
+  { mpz_cdiv_qr_ui,     "mpz_cdiv_qr_ui",    0 },
+  { mpz_fdiv_qr_ui,     "mpz_fdiv_qr_ui",    0 },
+  { mpz_tdiv_qr_ui,     "mpz_tdiv_qr_ui",    0 },
+};
+
+
+struct {
+  ddss_div_func fptr;
+  const char *fname;
+  int isslow;
+} static ddss_div[] =
+{
+  { mpz_cdiv_qr,  "mpz_cdiv_qr",    0 },
+  { mpz_fdiv_qr,  "mpz_fdiv_qr",    0 },
+  { mpz_tdiv_qr,  "mpz_tdiv_qr",    0 },
+};
+
+struct {
+  ds_func fptr;
+  const char *fname;
+  int nonneg;
+} static ds[] =
+{
+  { mpz_abs,    "mpz_abs",    0 },
+  { mpz_com,    "mpz_com",    0 },
+  { mpz_neg,    "mpz_neg",    0 },
+  { mpz_sqrt,   "mpz_sqrt",   1 },
+};
+
+#define FAIL(class,indx,op1,op2,op3)					\
+  do {									\
+    dump (class[indx].fname, op1, op2, op3);				\
+    exit (1);								\
+  } while (0)
+
+#define FAIL2(fname,op1,op2,op3)					\
+  do {									\
+    dump (#fname, op1, op2, op3);					\
+    exit (1);								\
+  } while (0)
+
+
+void
+realloc_if_reducing (mpz_ptr r)
+{
+  if (ABSIZ(r) < ALLOC(r))
+      _mpz_realloc (r, ABSIZ(r));
+}
+
+#define INVOKE_RRS(desc,r1,r2,i1)					\
+  do {									\
+    if (pass & 1) realloc_if_reducing (r1);				\
+    if (pass & 2) realloc_if_reducing (r2);				\
+    (desc).fptr (r1, r2, i1);						\
+  } while (0)
+#define INVOKE_RS(desc,r1,i1)						\
+  do {									\
+    if (pass & 1) realloc_if_reducing (r1);				\
+    (desc).fptr (r1, i1);						\
+  } while (0)
+#define INVOKE_RRSS(desc,r1,r2,i1,i2)					\
+  do {									\
+    if (pass & 1) realloc_if_reducing (r1);				\
+    if (pass & 2) realloc_if_reducing (r2);				\
+    (desc).fptr (r1, r2, i1, i2);					\
+  } while (0)
+#define INVOKE_RSS(desc,r1,i1,i2)					\
+  do {									\
+    if (pass & 1) realloc_if_reducing (r1);				\
+    (desc).fptr (r1, i1, i2);						\
+  } while (0)
+
+int
+main (int argc, char **argv)
+{
+  int i;
+  unsigned int pass, reps = 400;
+  mpz_t in1, in2, in3;
+  unsigned long int in2i;
+  mpz_t res1, res2, res3;
+  mpz_t ref1, ref2, ref3;
+  mpz_t t;
+  unsigned long int r1, r2;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (in1);
+  mpz_init (in2);
+  mpz_init (in3);
+  mpz_init (ref1);
+  mpz_init (ref2);
+  mpz_init (ref3);
+  mpz_init (res1);
+  mpz_init (res2);
+  mpz_init (res3);
+  mpz_init (t);
+
+  mpz_set_ui (res1, 1);		/* force allocation */
+  mpz_set_ui (res2, 1);		/* force allocation */
+  mpz_set_ui (res3, 1);		/* force allocation */
+
+  for (pass = 1; pass <= reps; pass++)
+    {
+#ifndef VERBOSE
+      if (isatty (STDOUT_FILENO))
+	{
+	  printf ("\r%d/%d passes", pass, reps);
+	  fflush (stdout);
+	}
+#endif
+
+      mpz_urandomb (bs, rands, 32);
+      /* Make size_range gradually bigger with each pass. */
+      size_range = mpz_get_ui (bs) % (pass * 15 / reps + 1) + 8;
+
+#define MAKE_RANDOM_OP(in, size_range, s)				\
+  do {									\
+    mpz_urandomb (bs, rands, size_range);				\
+    if (((pass >> s) & 3) == 3) /* conditional exponential dist */	\
+      mpz_urandomb (bs, rands, mpz_get_ui (bs) % (size_range - 7) + 7);	\
+    mpz_rrandomb (in, rands, mpz_get_ui (bs));				\
+  } while (0)
+
+      MAKE_RANDOM_OP (in1, size_range, 0);
+      MAKE_RANDOM_OP (in2, size_range, 2);
+      MAKE_RANDOM_OP (in3, size_range, 4);
+#undef MAKE_RANDOM_OP
+
+#ifdef VERBOSE
+      printf("%9d%9d%8d\n",
+	     mpz_sizeinbase(in1,2),
+	     mpz_sizeinbase(in2,2),
+	     mpz_sizeinbase(in3,2));
+#endif
+
+      mpz_urandomb (bs, rands, 3);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (in1, in1);
+      if ((bsi & 2) != 0)
+	mpz_neg (in2, in2);
+      if ((bsi & 4) != 0)
+	mpz_neg (in3, in3);
+
+      for (i = 0; i < numberof (dss); i++)
+	{
+	  if (dss[i].isdivision && mpz_sgn (in2) == 0)
+	    continue;
+	  if (dss[i].isslow && size_range > 19)
+	    continue;
+
+	  (dss[i].fptr) (ref1, in1, in2);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  INVOKE_RSS (dss[i], res1, res1, in2);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL (dss, i, in1, in2, NULL);
+
+	  mpz_set (res1, in2);
+	  INVOKE_RSS (dss[i], res1, in1, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL (dss, i, in1, in2, NULL);
+	}
+
+      for (i = 0; i < numberof (ddss_div); i++)
+	{
+	  if (mpz_sgn (in2) == 0)
+	    continue;
+
+	  (ddss_div[i].fptr) (ref1, ref2, in1, in2);
+	  MPZ_CHECK_FORMAT (ref1);
+	  MPZ_CHECK_FORMAT (ref2);
+
+	  mpz_set (res1, in1);
+	  mpz_clobber (res2);
+	  INVOKE_RRSS (ddss_div[i], res1, res2, res1, in2);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL (ddss_div, i, in1, in2, NULL);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in1);
+	  INVOKE_RRSS (ddss_div[i], res1, res2, res2, in2);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL (ddss_div, i, in1, in2, NULL);
+
+	  mpz_set (res1, in2);
+	  mpz_clobber (res2);
+	  INVOKE_RRSS (ddss_div[i], res1, res2, in1, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL (ddss_div, i, in1, in2, NULL);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in2);
+	  INVOKE_RRSS (ddss_div[i], res1, res2, in1, res2);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL (ddss_div, i, in1, in2, NULL);
+	}
+
+      for (i = 0; i < numberof (ds); i++)
+	{
+	  if (ds[i].nonneg && mpz_sgn (in1) < 0)
+	    continue;
+
+	  (ds[i].fptr) (ref1, in1);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  INVOKE_RS (ds[i], res1, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL (ds, i, in1, in2, NULL);
+	}
+
+      in2i = mpz_get_ui (in2);
+
+      for (i = 0; i < numberof (dsi); i++)
+	{
+	  if (dsi[i].mod != 0)
+	    in2i = mpz_get_ui (in2) % dsi[i].mod;
+
+	  (dsi[i].fptr) (ref1, in1, in2i);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  INVOKE_RRS (dsi[i], res1, res1, in2i);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL (dsi, i, in1, in2, NULL);
+	}
+
+      if (in2i != 0)	  /* Don't divide by 0.  */
+	{
+	  for (i = 0; i < numberof (dsi_div); i++)
+	    {
+	      r1 = (dsi_div[i].fptr) (ref1, in1, in2i);
+	      MPZ_CHECK_FORMAT (ref1);
+
+	      mpz_set (res1, in1);
+	      r2 = (dsi_div[i].fptr) (res1, res1, in2i);
+	      MPZ_CHECK_FORMAT (res1);
+	      if (mpz_cmp (ref1, res1) != 0 || r1 != r2)
+		FAIL (dsi_div, i, in1, in2, NULL);
+	    }
+
+	  for (i = 0; i < numberof (ddsi_div); i++)
+	    {
+	      r1 = (ddsi_div[i].fptr) (ref1, ref2, in1, in2i);
+	      MPZ_CHECK_FORMAT (ref1);
+
+	      mpz_set (res1, in1);
+	      mpz_clobber (res2);
+	      r2 = (ddsi_div[i].fptr) (res1, res2, res1, in2i);
+	      MPZ_CHECK_FORMAT (res1);
+	      if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || r1 != r2)
+		FAIL (ddsi_div, i, in1, in2, NULL);
+
+	      mpz_clobber (res1);
+	      mpz_set (res2, in1);
+	      (ddsi_div[i].fptr) (res1, res2, res2, in2i);
+	      MPZ_CHECK_FORMAT (res1);
+	      if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || r1 != r2)
+		FAIL (ddsi_div, i, in1, in2, NULL);
+	    }
+	}
+
+      if (mpz_sgn (in1) >= 0)
+	{
+	  mpz_sqrtrem (ref1, ref2, in1);
+	  MPZ_CHECK_FORMAT (ref1);
+	  MPZ_CHECK_FORMAT (ref2);
+
+	  mpz_set (res1, in1);
+	  mpz_sqrtrem (res1, res2, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL2 (mpz_sqrtrem, in1, NULL, NULL);
+
+	  mpz_set (res2, in1);
+	  mpz_sqrtrem (res1, res2, res2);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL2 (mpz_sqrtrem, in1, NULL, NULL);
+
+	  mpz_set (res1, in1);
+	  mpz_sqrtrem (res1, res1, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref2, res1) != 0)
+	    FAIL2 (mpz_sqrtrem, in1, NULL, NULL);
+	}
+
+      if (mpz_sgn (in1) >= 0)
+	{
+	  mpz_root (ref1, in1, in2i % 0x100 + 1);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  mpz_root (res1, res1, in2i % 0x100 + 1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_root, in1, in2, NULL);
+	}
+
+      if (mpz_sgn (in1) >= 0)
+	{
+	  mpz_rootrem (ref1, ref2, in1, in2i % 0x100 + 1);
+	  MPZ_CHECK_FORMAT (ref1);
+	  MPZ_CHECK_FORMAT (ref2);
+
+	  mpz_set (res1, in1);
+	  mpz_rootrem (res1, res2, res1, in2i % 0x100 + 1);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL2 (mpz_rootrem, in1, in2, NULL);
+
+	  mpz_set (res2, in1);
+	  mpz_rootrem (res1, res2, res2, in2i % 0x100 + 1);
+	  MPZ_CHECK_FORMAT (res1);
+	  MPZ_CHECK_FORMAT (res2);
+	  if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+	    FAIL2 (mpz_rootrem, in1, in2, NULL);
+	}
+
+      if (size_range < 18)	/* run fewer tests since gcdext is slow */
+	{
+	  mpz_gcdext (ref1, ref2, ref3, in1, in2);
+	  MPZ_CHECK_FORMAT (ref1);
+	  MPZ_CHECK_FORMAT (ref2);
+	  MPZ_CHECK_FORMAT (ref3);
+
+#define GCDEXT_CHECK3(i1, i2) do {					\
+	    mpz_gcdext (res1, res2, res3, i1, i2);			\
+	    MPZ_CHECK_FORMAT (res1);					\
+	    MPZ_CHECK_FORMAT (res2);					\
+	    MPZ_CHECK_FORMAT (res3);					\
+	    if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0	\
+		|| mpz_cmp (ref3, res3) != 0)				\
+	      FAIL2 (mpz_gcdext, i1, i2, NULL);				\
+	  } while (0)
+#define GCDEXT_CHECK2(i1, i2) do {					\
+	    mpz_gcdext (res1, res2, NULL, i1, i2);			\
+	    MPZ_CHECK_FORMAT (res1);					\
+	    MPZ_CHECK_FORMAT (res2);					\
+	    if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)	\
+	      FAIL2 (mpz_gcdext, i1, i2, NULL);				\
+	  } while (0)
+
+	  mpz_set (res1, in1);
+	  mpz_clobber (res2);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK3 (res1, in2);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in1);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK3 (res2, in2);
+
+	  mpz_clobber (res1);
+	  mpz_clobber (res2);
+	  mpz_set (res3, in1);
+	  GCDEXT_CHECK3 (res3, in2);
+
+	  mpz_set (res1, in2);
+	  mpz_clobber (res2);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK3 (in1, res1);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in2);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK3 (in1, res2);
+
+	  mpz_clobber (res1);
+	  mpz_clobber (res2);
+	  mpz_set (res3, in2);
+	  GCDEXT_CHECK3 (in1, res3);
+
+	  mpz_set (res1, in1);
+	  mpz_set (res2, in2);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK3 (res1, res2);
+
+	  mpz_set (res1, in1);
+	  mpz_clobber (res2);
+	  mpz_set (res3, in2);
+	  GCDEXT_CHECK3 (res1, res3);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in1);
+	  mpz_set (res3, in2);
+	  GCDEXT_CHECK3 (res2, res3);
+
+	  mpz_set (res1, in2);
+	  mpz_set (res2, in1);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK3 (res2, res1);
+
+	  mpz_set (res1, in2);
+	  mpz_clobber (res2);
+	  mpz_set (res3, in1);
+	  GCDEXT_CHECK3 (res3, res1);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in2);
+	  mpz_set (res3, in1);
+	  GCDEXT_CHECK3(res3, res2);
+
+	  mpz_set (res1, in1);
+	  mpz_clobber (res2);
+	  GCDEXT_CHECK2 (res1, in2);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in1);
+	  GCDEXT_CHECK2 (res2, in2);
+
+	  mpz_set (res1, in2);
+	  mpz_clobber (res2);
+	  GCDEXT_CHECK2 (in1, res1);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in2);
+	  GCDEXT_CHECK2 (in1, res2);
+#undef GCDEXT_CHECK
+	  /* Identical inputs, gcd(in1, in1). Then the result should be
+	     gcd = abs(in1), s = 0, t = sgn(in1). */
+	  mpz_abs (ref1, in1);
+	  mpz_set_ui (ref2, 0);
+	  mpz_set_si (ref3, mpz_sgn (in1));
+
+#define GCDEXT_CHECK_SAME3(in) do {					\
+	    mpz_gcdext (res1, res2, res3, in, in);			\
+	    MPZ_CHECK_FORMAT (res1);					\
+	    MPZ_CHECK_FORMAT (res2);					\
+	    MPZ_CHECK_FORMAT (res3);					\
+	    if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0	\
+		|| mpz_cmp (ref3, res3) != 0)				\
+	      FAIL2 (mpz_gcdext, in, in, NULL);				\
+	  } while (0)
+#define GCDEXT_CHECK_SAME2(in) do {					\
+	    mpz_gcdext (res1, res2, NULL, in, in);			\
+	    MPZ_CHECK_FORMAT (res1);					\
+	    MPZ_CHECK_FORMAT (res2);					\
+	    if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)	\
+	      FAIL2 (mpz_gcdext, in, in, NULL);				\
+	  } while (0)
+
+	  mpz_set (res1, in1);
+	  mpz_clobber (res2);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK_SAME3 (res1);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in1);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK_SAME3 (res2);
+
+	  mpz_clobber (res1);
+	  mpz_clobber (res2);
+	  mpz_set (res3, in1);
+	  GCDEXT_CHECK_SAME3 (res3);
+
+	  mpz_set (res1, in1);
+	  mpz_clobber (res2);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK_SAME2 (res1);
+
+	  mpz_clobber (res1);
+	  mpz_set (res2, in1);
+	  mpz_clobber (res3);
+	  GCDEXT_CHECK_SAME2 (res2);
+#undef GCDEXT_CHECK_SAME
+	}
+
+      /* Don't run mpz_powm for huge exponents or when undefined.  */
+      if (size_range < 17 && mpz_sizeinbase (in2, 2) < 250 && mpz_sgn (in3) != 0
+	  && (mpz_sgn (in2) >= 0 || mpz_invert (t, in1, in3)))
+	{
+	  mpz_powm (ref1, in1, in2, in3);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  mpz_powm (res1, res1, in2, in3);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_powm, in1, in2, in3);
+
+	  mpz_set (res1, in2);
+	  mpz_powm (res1, in1, res1, in3);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_powm, in1, in2, in3);
+
+	  mpz_set (res1, in3);
+	  mpz_powm (res1, in1, in2, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_powm, in1, in2, in3);
+	}
+
+      /* Don't run mpz_powm_ui when undefined.  */
+      if (size_range < 17 && mpz_sgn (in3) != 0)
+	{
+	  mpz_powm_ui (ref1, in1, in2i, in3);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  mpz_powm_ui (res1, res1, in2i, in3);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_powm_ui, in1, in2, in3);
+
+	  mpz_set (res1, in3);
+	  mpz_powm_ui (res1, in1, in2i, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_powm_ui, in1, in2, in3);
+	}
+
+      {
+	r1 = mpz_gcd_ui (ref1, in1, in2i);
+	MPZ_CHECK_FORMAT (ref1);
+
+	mpz_set (res1, in1);
+	r2 = mpz_gcd_ui (res1, res1, in2i);
+	MPZ_CHECK_FORMAT (res1);
+	if (mpz_cmp (ref1, res1) != 0)
+	  FAIL2 (mpz_gcd_ui, in1, in2, NULL);
+      }
+
+      if (mpz_sgn (in2) != 0)
+	{
+	  /* Test mpz_remove */
+	  mp_bitcnt_t refretval, retval;
+	  refretval = mpz_remove (ref1, in1, in2);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, in1);
+	  retval = mpz_remove (res1, res1, in2);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0 || refretval != retval)
+	    FAIL2 (mpz_remove, in1, in2, NULL);
+
+	  mpz_set (res1, in2);
+	  retval = mpz_remove (res1, in1, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0 || refretval != retval)
+	    FAIL2 (mpz_remove, in1, in2, NULL);
+	}
+
+      if (mpz_sgn (in2) != 0)
+	{
+	  /* Test mpz_divexact */
+	  mpz_mul (t, in1, in2);
+	  mpz_divexact (ref1, t, in2);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, t);
+	  mpz_divexact (res1, res1, in2);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_divexact, t, in2, NULL);
+
+	  mpz_set (res1, in2);
+	  mpz_divexact (res1, t, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_divexact, t, in2, NULL);
+	}
+
+      if (mpz_sgn (in2) > 0)
+	{
+	  /* Test mpz_divexact_gcd, same as mpz_divexact */
+	  mpz_mul (t, in1, in2);
+	  mpz_divexact_gcd (ref1, t, in2);
+	  MPZ_CHECK_FORMAT (ref1);
+
+	  mpz_set (res1, t);
+	  mpz_divexact_gcd (res1, res1, in2);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_divexact_gcd, t, in2, NULL);
+
+	  mpz_set (res1, in2);
+	  mpz_divexact_gcd (res1, t, res1);
+	  MPZ_CHECK_FORMAT (res1);
+	  if (mpz_cmp (ref1, res1) != 0)
+	    FAIL2 (mpz_divexact_gcd, t, in2, NULL);
+	}
+    }
+
+  if (isatty (STDOUT_FILENO))
+    printf ("\r%20s", "");
+
+  mpz_clear (bs);
+  mpz_clear (in1);
+  mpz_clear (in2);
+  mpz_clear (in3);
+  mpz_clear (ref1);
+  mpz_clear (ref2);
+  mpz_clear (ref3);
+  mpz_clear (res1);
+  mpz_clear (res2);
+  mpz_clear (res3);
+  mpz_clear (t);
+
+  if (isatty (STDOUT_FILENO))
+    printf ("\r");
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump (const char *name, mpz_t in1, mpz_t in2, mpz_t in3)
+{
+  printf ("failure in %s (", name);
+  mpz_out_str (stdout, -16, in1);
+  if (in2 != NULL)
+    {
+      printf (" ");
+      mpz_out_str (stdout, -16, in2);
+    }
+  if (in3 != NULL)
+    {
+      printf (" ");
+      mpz_out_str (stdout, -16, in3);
+    }
+  printf (")\n");
+}
+
+#endif /* ! DLL_EXPORT */
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-addsub.c b/vendor/gmp-6.3.0/tests/mpz/t-addsub.c
new file mode 100644
index 0000000..aaa3188
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-addsub.c
@@ -0,0 +1,121 @@
+/* Test mpz_add, mpz_sub, mpz_add_ui, mpz_sub_ui, and mpz_ui_sub.
+
+Copyright 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "longlong.h"
+#include "tests.h"
+
+void debug_mp (mpz_t, int);
+void dump_abort (int, const char *, mpz_t, mpz_t);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t op1, op2, r1, r2;
+  mp_size_t op1n, op2n;
+  unsigned long int op2long;
+  int i;
+  int reps = 100000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (op1);
+  mpz_init (op2);
+  mpz_init (r1);
+  mpz_init (r2);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      op1n = mpz_get_ui (bs);
+      mpz_rrandomb (op1, rands, op1n);
+
+      mpz_urandomb (bs, rands, size_range);
+      op2n = mpz_get_ui (bs);
+      mpz_rrandomb (op2, rands, op2n);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (op1, op1);
+      if ((bsi & 2) != 0)
+	mpz_neg (op2, op2);
+
+      /* printf ("%ld %ld\n", SIZ (multiplier), SIZ (multiplicand)); */
+
+      mpz_add (r1, op1, op2);
+      mpz_sub (r2, r1, op2);
+      if (mpz_cmp (r2, op1) != 0)
+	dump_abort (i, "mpz_add or mpz_sub incorrect", op1, op2);
+
+      if (mpz_fits_ulong_p (op2))
+	{
+	  op2long = mpz_get_ui (op2);
+	  mpz_add_ui (r1, op1, op2long);
+	  mpz_sub_ui (r2, r1, op2long);
+	  if (mpz_cmp (r2, op1) != 0)
+	    dump_abort (i, "mpz_add_ui or mpz_sub_ui incorrect", op1, op2);
+
+	  mpz_ui_sub (r1, op2long, op1);
+	  mpz_sub_ui (r2, op1, op2long);
+	  mpz_neg (r2, r2);
+	  if (mpz_cmp (r1, r2) != 0)
+	    dump_abort (i, "mpz_add_ui or mpz_ui_sub incorrect", op1, op2);
+	}
+    }
+
+  mpz_clear (bs);
+  mpz_clear (op1);
+  mpz_clear (op2);
+  mpz_clear (r1);
+  mpz_clear (r2);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (int i, const char *s, mpz_t op1, mpz_t op2)
+{
+  fprintf (stderr, "ERROR: %s in test %d\n", s, i);
+  fprintf (stderr, "op1 = "); debug_mp (op1, -16);
+  fprintf (stderr, "op2 = "); debug_mp (op2, -16);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-aorsmul.c b/vendor/gmp-6.3.0/tests/mpz/t-aorsmul.c
new file mode 100644
index 0000000..4bd435d
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-aorsmul.c
@@ -0,0 +1,464 @@
+/* Test mpz_addmul, mpz_addmul_ui, mpz_submul, mpz_submul_ui.
+
+Copyright 2001, 2002, 2022 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+#define M GMP_NUMB_MAX
+
+
+void
+check_one_inplace (mpz_srcptr w, mpz_srcptr y)
+{
+  mpz_t  want, got;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  mpz_mul (want, w, y);
+  mpz_add (want, w, want);
+  mpz_set (got, w);
+  mpz_addmul (got, got, y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_addmul inplace fail\n");
+    fail:
+      mpz_trace ("w", w);
+      mpz_trace ("y", y);
+      mpz_trace ("want", want);
+      mpz_trace ("got ", got);
+      abort ();
+    }
+
+  mpz_mul (want, w, y);
+  mpz_sub (want, w, want);
+  mpz_set (got, w);
+  mpz_submul (got, got, y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_submul inplace fail\n");
+      goto fail;
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+void
+check_one_ui_inplace (mpz_ptr w, unsigned long y)
+{
+  mpz_t  want, got;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  mpz_mul_ui (want, w, (unsigned long) y);
+  mpz_add (want, w, want);
+  mpz_set (got, w);
+  mpz_addmul_ui (got, got, (unsigned long) y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_addmul_ui fail\n");
+    fail:
+      mpz_trace ("w", w);
+      printf    ("y=0x%lX   %lu\n", y, y);
+      mpz_trace ("want", want);
+      mpz_trace ("got ", got);
+      abort ();
+    }
+
+  mpz_mul_ui (want, w, y);
+  mpz_sub (want, w, want);
+  mpz_set (got, w);
+  mpz_submul_ui (got, got, y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_submul_ui fail\n");
+      goto fail;
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+void
+check_all_inplace (mpz_ptr w, mpz_ptr y)
+{
+  int  wneg, yneg;
+
+  MPZ_CHECK_FORMAT (w);
+  MPZ_CHECK_FORMAT (y);
+
+  for (wneg = 0; wneg < 2; wneg++)
+    {
+      for (yneg = 0; yneg < 2; yneg++)
+        {
+          check_one_inplace (w, y);
+
+          if (mpz_fits_ulong_p (y))
+            check_one_ui_inplace (w, mpz_get_ui (y));
+
+          mpz_neg (y, y);
+        }
+      mpz_neg (w, w);
+    }
+}
+
+void
+check_one (mpz_srcptr w, mpz_srcptr x, mpz_srcptr y)
+{
+  mpz_t  want, got;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  mpz_mul (want, x, y);
+  mpz_add (want, w, want);
+  mpz_set (got, w);
+  mpz_addmul (got, x, y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_addmul fail\n");
+    fail:
+      mpz_trace ("w", w);
+      mpz_trace ("x", x);
+      mpz_trace ("y", y);
+      mpz_trace ("want", want);
+      mpz_trace ("got ", got);
+      abort ();
+    }
+
+
+  mpz_sub (want, want, w);
+  mpz_sub (want, w, want);
+  mpz_set (got, w);
+  mpz_submul (got, x, y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_submul fail\n");
+      goto fail;
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+void
+check_sqr (mpz_srcptr w, mpz_srcptr x)
+{
+  mpz_t  want, got;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  mpz_mul (want, x, x);
+  mpz_add (want, w, want);
+  mpz_set (got, w);
+  mpz_addmul (got, x, x);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_addmul xx fail\n");
+    sqrfail:
+      mpz_trace ("w", w);
+      mpz_trace ("x", x);
+      mpz_trace ("want", want);
+      mpz_trace ("got ", got);
+      abort ();
+    }
+
+  mpz_sub (want, want, w);
+  mpz_sub (want, w, want);
+  mpz_set (got, w);
+  mpz_submul (got, x, x);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_submul xx fail\n");
+      goto sqrfail;
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+void
+check_one_ui (mpz_ptr w, mpz_ptr x, unsigned long y)
+{
+  mpz_t  want, got;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  mpz_mul_ui (want, x, (unsigned long) y);
+  mpz_add (want, w, want);
+  mpz_set (got, w);
+  mpz_addmul_ui (got, x, (unsigned long) y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_addmul_ui fail\n");
+    fail:
+      mpz_trace ("w", w);
+      mpz_trace ("x", x);
+      printf    ("y=0x%lX   %lu\n", y, y);
+      mpz_trace ("want", want);
+      mpz_trace ("got ", got);
+      abort ();
+    }
+
+  mpz_mul_ui (want, x, y);
+  mpz_sub (want, w, want);
+  mpz_set (got, w);
+  mpz_submul_ui (got, x, y);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (want, got) != 0)
+    {
+      printf ("mpz_submul_ui fail\n");
+      goto fail;
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+
+void
+check_all (mpz_ptr w, mpz_ptr x, mpz_ptr y)
+{
+  int    swap, wneg, xneg, yneg;
+
+  MPZ_CHECK_FORMAT (w);
+  MPZ_CHECK_FORMAT (x);
+  MPZ_CHECK_FORMAT (y);
+
+  for (swap = 0; swap < 2; swap++)
+    {
+      for (wneg = 0; wneg < 2; wneg++)
+        {
+          for (xneg = 0; xneg < 2; xneg++)
+            {
+              for (yneg = 0; yneg < 2; yneg++)
+                {
+                  check_one (w, x, y);
+
+                  if (mpz_fits_ulong_p (y))
+                    check_one_ui (w, x, mpz_get_ui (y));
+
+                  mpz_neg (y, y);
+                }
+
+	      check_sqr (w, x);
+
+              mpz_neg (x, x);
+            }
+          mpz_neg (w, w);
+        }
+      mpz_swap (x, y);
+    }
+}
+
+void
+check_data_inplace_ui (void)
+{
+  static const struct {
+    mp_limb_t      w[6];
+    unsigned long  y;
+
+  } data[] = {
+
+    { { 0 }, 0 },
+    { { 0 }, 1 },
+    { { 1 }, 1 },
+    { { 2 }, 1 },
+
+    { { 123 }, 1 },
+    { { 123 }, ULONG_MAX },
+    { { M }, 1 },
+    { { M }, ULONG_MAX },
+
+    { { 123, 456 }, 1 },
+    { { M, M }, 1 },
+    { { 123, 456 }, ULONG_MAX },
+    { { M, M }, ULONG_MAX },
+
+    { { 123, 456, 789 }, 1 },
+    { { M, M, M }, 1 },
+    { { 123, 456, 789 }, ULONG_MAX },
+    { { M, M, M }, ULONG_MAX },
+  };
+
+  mpz_t  w, y;
+  int    i;
+
+  mpz_init (w);
+  mpz_init (y);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_n (w, data[i].w, (mp_size_t) numberof(data[i].w));
+      mpz_set_ui (y, data[i].y);
+      check_all_inplace (w, y);
+    }
+
+  mpz_clear (w);
+  mpz_clear (y);
+}
+
+void
+check_data (void)
+{
+  static const struct {
+    mp_limb_t  w[6];
+    mp_limb_t  x[6];
+    mp_limb_t  y[6];
+
+  } data[] = {
+
+    /* reducing to zero */
+    { { 1 }, { 1 }, { 1 } },
+    { { 2 }, { 1 }, { 2 } },
+    { { 0,1 }, { 0,1 }, { 1 } },
+
+    /* reducing to 1 */
+    { { 0,1 },       { M },       { 1 } },
+    { { 0,0,1 },     { M,M },     { 1 } },
+    { { 0,0,0,1 },   { M,M,M },   { 1 } },
+    { { 0,0,0,0,1 }, { M,M,M,M }, { 1 } },
+
+    /* reducing to -1 */
+    { { M },       { 0,1 },       { 1 } },
+    { { M,M },     { 0,0,1 },     { 1 } },
+    { { M,M,M },   { 0,0,0,1 },   { 1 } },
+    { { M,M,M,M }, { 0,0,0,0,1 }, { 1 } },
+
+    /* carry out of addmul */
+    { { M },     { 1 }, { 1 } },
+    { { M,M },   { 1 }, { 1 } },
+    { { M,M,M }, { 1 }, { 1 } },
+
+    /* borrow from submul */
+    { { 0,1 },     { 1 }, { 1 } },
+    { { 0,0,1 },   { 1 }, { 1 } },
+    { { 0,0,0,1 }, { 1 }, { 1 } },
+
+    /* borrow from submul */
+    { { 0,0,1 },     { 0,1 }, { 1 } },
+    { { 0,0,0,1 },   { 0,1 }, { 1 } },
+    { { 0,0,0,0,1 }, { 0,1 }, { 1 } },
+
+    /* more borrow from submul */
+    { { M }, { 0,1 },       { 1 } },
+    { { M }, { 0,0,1 },     { 1 } },
+    { { M }, { 0,0,0,1 },   { 1 } },
+    { { M }, { 0,0,0,0,1 }, { 1 } },
+
+    /* big borrow from submul */
+    { { 0,0,1 },     { M,M }, { M } },
+    { { 0,0,0,1 },   { M,M }, { M } },
+    { { 0,0,0,0,1 }, { M,M }, { M } },
+
+    /* small w */
+    { { 0,1 }, { M,M },       { M } },
+    { { 0,1 }, { M,M,M },     { M } },
+    { { 0,1 }, { M,M,M,M },   { M } },
+    { { 0,1 }, { M,M,M,M,M }, { M } },
+  };
+
+  mpz_t  w, x, y;
+  int    i;
+
+  mpz_init (w);
+  mpz_init (x);
+  mpz_init (y);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_n (w, data[i].w, (mp_size_t) numberof(data[i].w));
+      mpz_set_n (x, data[i].x, (mp_size_t) numberof(data[i].x));
+      mpz_set_n (y, data[i].y, (mp_size_t) numberof(data[i].y));
+      check_all (w, x, y);
+    }
+
+  mpz_clear (w);
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+
+void
+check_random (int argc, char *argv[])
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t  w, x, y;
+  int    i, reps = 2000;
+
+  mpz_init (w);
+  mpz_init (x);
+  mpz_init (y);
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_errandomb (w, rands, 5*GMP_LIMB_BITS);
+      mpz_errandomb (x, rands, 5*GMP_LIMB_BITS);
+      mpz_errandomb (y, rands, 5*GMP_LIMB_BITS);
+      check_all (w, x, y);
+      check_all_inplace (w, y);
+
+      mpz_errandomb (w, rands, 5*GMP_LIMB_BITS);
+      mpz_errandomb (x, rands, 5*GMP_LIMB_BITS);
+      mpz_errandomb (y, rands, BITS_PER_ULONG);
+      check_all (w, x, y);
+      check_all_inplace (w, y);
+    }
+
+  mpz_clear (w);
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_data ();
+  check_data_inplace_ui ();
+  check_random (argc, argv);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-bin.c b/vendor/gmp-6.3.0/tests/mpz/t-bin.c
new file mode 100644
index 0000000..b647be4
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-bin.c
@@ -0,0 +1,328 @@
+/* Exercise mpz_bin_ui and mpz_bin_uiui.
+
+Copyright 2000, 2001, 2010, 2012, 2018, 2020 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+/* Default number of generated tests. */
+#define COUNT 700
+
+void
+try_mpz_bin_ui (mpz_srcptr want, mpz_srcptr n, unsigned long k)
+{
+  mpz_t  got;
+
+  mpz_init (got);
+  mpz_bin_ui (got, n, k);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (got, want) != 0)
+    {
+      printf ("mpz_bin_ui wrong\n");
+      printf ("  n="); mpz_out_str (stdout, 10, n); printf ("\n");
+      printf ("  k=%lu\n", k);
+      printf ("  got="); mpz_out_str (stdout, 10, got); printf ("\n");
+      printf ("  want="); mpz_out_str (stdout, 10, want); printf ("\n");
+      abort();
+    }
+  mpz_clear (got);
+}
+
+
+void
+try_mpz_bin_uiui (mpz_srcptr want, unsigned long n, unsigned long k)
+{
+  mpz_t  got;
+
+  mpz_init (got);
+  mpz_bin_uiui (got, n, k);
+  MPZ_CHECK_FORMAT (got);
+  if (mpz_cmp (got, want) != 0)
+    {
+      printf ("mpz_bin_uiui wrong\n");
+      printf ("  n=%lu\n", n);
+      printf ("  k=%lu\n", k);
+      printf ("  got="); mpz_out_str (stdout, 10, got); printf ("\n");
+      printf ("  want="); mpz_out_str (stdout, 10, want); printf ("\n");
+      abort();
+    }
+  mpz_clear (got);
+}
+
+
+void
+samples (void)
+{
+  static const struct {
+    const char     *n;
+    unsigned long  k;
+    const char     *want;
+  } data[] = {
+
+    {   "0", 123456, "0" },
+    {   "1", 543210, "0" },
+    {   "2", 123321, "0" },
+    {   "3", 234567, "0" },
+    {   "10", 23456, "0" },
+
+    /* negatives, using bin(-n,k)=bin(n+k-1,k) */
+    {   "-1",  0,  "1"  },
+    {   "-1",  1, "-1"  },
+    {   "-1",  2,  "1"  },
+    {   "-1",  3, "-1"  },
+    {   "-1",  4,  "1"  },
+
+    {   "-2",  0,  "1"  },
+    {   "-2",  1, "-2"  },
+    {   "-2",  2,  "3"  },
+    {   "-2",  3, "-4"  },
+    {   "-2",  4,  "5"  },
+    {   "-2",  5, "-6"  },
+    {   "-2",  6,  "7"  },
+
+    {   "-3",  0,   "1"  },
+    {   "-3",  1,  "-3"  },
+    {   "-3",  2,   "6"  },
+    {   "-3",  3, "-10"  },
+    {   "-3",  4,  "15"  },
+    {   "-3",  5, "-21"  },
+    {   "-3",  6,  "28"  },
+
+    /* A few random values */
+    {   "41", 20,  "269128937220" },
+    {   "62", 37,  "147405545359541742" },
+    {   "50", 18,  "18053528883775" },
+    {  "149", 21,  "19332950844468483467894649" },
+  };
+
+  mpz_t  n, want;
+  int    i;
+
+  mpz_init (n);
+  mpz_init (want);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (n, data[i].n, 0);
+      mpz_set_str_or_abort (want, data[i].want, 0);
+
+      try_mpz_bin_ui (want, n, data[i].k);
+
+      if (mpz_fits_ulong_p (n))
+	try_mpz_bin_uiui (want, mpz_get_ui (n), data[i].k);
+    }
+
+  mpz_clear (n);
+  mpz_clear (want);
+}
+
+
+/* Test some bin(2k,k) cases.  This produces some biggish numbers to
+   exercise the limb accumulating code.  */
+void
+twos (int count)
+{
+  mpz_t          n, want;
+  unsigned long  k;
+
+  mpz_init (n);
+
+  mpz_init_set_ui (want, (unsigned long) 2);
+  for (k = 1; k < count; k++)
+    {
+      mpz_set_ui (n, 2*k);
+      try_mpz_bin_ui (want, n, k);
+
+      try_mpz_bin_uiui (want, 2*k, k);
+
+      mpz_mul_ui (want, want, 2*(2*k+1));
+      mpz_fdiv_q_ui (want, want, k+1);
+    }
+
+  mpz_clear (n);
+  mpz_clear (want);
+}
+
+/* Test some random bin(n,k) cases.  This produces some biggish
+   numbers to exercise the limb accumulating code.  */
+void
+randomwalk (int count)
+{
+  mpz_t          n_z, want, tmp;
+  unsigned long  n, k, i, r;
+  int            tests;
+  gmp_randstate_ptr rands;
+
+  rands = RANDS;
+  mpz_init (n_z);
+
+  k = 3;
+  n = 12;
+  mpz_init_set_ui (want, (unsigned long) 220); /* binomial(12,3) = 220 */
+
+  for (tests = 1; tests < count; tests++)
+    {
+      r = gmp_urandomm_ui (rands, 62) + 1;
+      for (i = r & 7; i > 0; i--)
+	{
+	  n++; k++;
+	  mpz_mul_ui (want, want, n);
+	  mpz_divexact_ui (want, want, k);
+	}
+      for (i = r >> 3; i > 0; i--)
+	{
+	  n++;
+	  mpz_mul_ui (want, want, n);
+	  mpz_divexact_ui (want, want, n - k);
+	}
+
+      mpz_set_ui (n_z, n);
+      try_mpz_bin_ui (want, n_z, k);
+
+      try_mpz_bin_uiui (want, n, k);
+    }
+
+  k = 2;
+  mpz_urandomb (n_z, rands, 200);
+  mpz_mul (want, n_z, n_z); /* want = n_z ^ 2 */
+  mpz_sub (want, want, n_z); /* want = n_z ^ 2 - n_z = n_z (n_z- 1) */
+  mpz_tdiv_q_2exp (want, want, 1); /* want = n_z (n_z- 1) / 2 = binomial (n_z, 2) */
+  mpz_init (tmp);
+  for (tests = 1; tests < count; tests++)
+    {
+      r = gmp_urandomm_ui (rands, 62) + 1;
+      for (i = r & 7; i > 0; i--)
+	{
+	  k++;
+	  mpz_add_ui (n_z, n_z, 1);
+	  mpz_mul (want, want, n_z);
+	  mpz_divexact_ui (want, want, k);
+	}
+      for (i = r >> 3; i > 0; i--)
+	{
+	  mpz_add_ui (n_z, n_z, 1);
+	  mpz_mul (want, want, n_z);
+	  mpz_sub_ui (tmp, n_z, k);
+	  mpz_divexact (want, want, tmp);
+	}
+
+      try_mpz_bin_ui (want, n_z, k);
+    }
+
+  mpz_clear (tmp);
+  mpz_clear (n_z);
+  mpz_clear (want);
+}
+
+/* Test some random bin(n,k) cases.  This produces some biggish
+   numbers to exercise the limb accumulating code.  */
+void
+randomwalk_down (int count)
+{
+  mpz_t          n_z, want, tmp;
+  unsigned long  n, k, i, r;
+  int            tests;
+  gmp_randstate_ptr rands;
+
+  rands = RANDS;
+  mpz_init (n_z);
+  mpz_init (tmp);
+
+  k = 2;
+  n = ULONG_MAX;
+  mpz_init_set_ui (want, n);
+  mpz_mul_ui (want, want, n >> 1);
+
+  for (tests = 1; tests < count; tests++)
+    {
+      r = gmp_urandomm_ui (rands, 62) + 1;
+      for (i = r & 7; i > 0; i--)
+	{
+	  mpz_mul_ui (want, want, n - k);
+	  ++k;
+	  mpz_divexact_ui (want, want, k);
+	}
+      for (i = r >> 3; i > 0; i--)
+	{
+	  mpz_mul_ui (want, want, n - k);
+	  mpz_divexact_ui (want, want, n);
+	  --n;
+	}
+
+      mpz_set_ui (n_z, n);
+      try_mpz_bin_ui (want, n_z, n - k);
+
+      try_mpz_bin_uiui (want, n, n - k);
+    }
+
+  mpz_clear (tmp);
+  mpz_clear (n_z);
+  mpz_clear (want);
+}
+
+
+/* Test all bin(n,k) cases, with 0 <= k <= n + 1 <= count.  */
+void
+smallexaustive (unsigned int count)
+{
+  mpz_t          n_z, want;
+  unsigned long  n, k;
+
+  mpz_init (n_z);
+  mpz_init (want);
+
+  for (n = 0; n < count; n++)
+    {
+      mpz_set_ui (want, (unsigned long) 1);
+      mpz_set_ui (n_z, n);
+      for (k = 0; k <= n; k++)
+	{
+	  try_mpz_bin_ui (want, n_z, k);
+	  try_mpz_bin_uiui (want, n, k);
+	  mpz_mul_ui (want, want, n - k);
+	  mpz_fdiv_q_ui (want, want, k + 1);
+	}
+      try_mpz_bin_ui (want, n_z, k);
+      try_mpz_bin_uiui (want, n, k);
+    }
+
+  mpz_clear (n_z);
+  mpz_clear (want);
+}
+
+int
+main (int argc, char **argv)
+{
+  int count;
+
+  count = COUNT;
+  TESTS_REPS (count, argv, argc);
+
+  tests_start ();
+
+  samples ();
+  smallexaustive (count >> 4);
+  twos (count >> 1);
+  randomwalk (count - (count >> 1));
+  randomwalk_down (count >> 1);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-bit.c b/vendor/gmp-6.3.0/tests/mpz/t-bit.c
new file mode 100644
index 0000000..cfcdeea
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-bit.c
@@ -0,0 +1,405 @@
+/* Test mpz_setbit, mpz_clrbit, mpz_tstbit.
+
+Copyright 1997, 2000-2003, 2012, 2013 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#ifndef SIZE
+#define SIZE 4
+#endif
+
+
+void
+debug_mp (mpz_srcptr x, int base)
+{
+  mpz_out_str (stdout, base, x); fputc ('\n', stdout);
+}
+
+
+/* exercise the case where mpz_clrbit or mpz_combit ends up extending a
+   value like -2^(k*GMP_NUMB_BITS-1) when clearing bit k*GMP_NUMB_BITS-1.  */
+/* And vice-versa. */
+void
+check_clr_extend (void)
+{
+  mpz_t          got, want;
+  unsigned long  i;
+  int            f;
+
+  mpz_init (got);
+  mpz_init (want);
+
+  for (i = 1; i < 5; i++)
+    {
+      for (f = 0; f <= 1; f++)
+	{
+	  /* lots of 1 bits in _mp_d */
+	  mpz_set_si (got, 1L);
+	  mpz_mul_2exp (got, got, 10*GMP_NUMB_BITS);
+	  mpz_sub_ui (got, got, 1L);
+
+	  /* value -2^(n-1) representing ..11100..00 */
+	  mpz_set_si (got, -1L);
+	  mpz_mul_2exp (got, got, i*GMP_NUMB_BITS-1);
+
+	  /* complement bit n, giving ..11000..00 which is -2^n */
+	  if (f == 0)
+	    mpz_clrbit (got, i*GMP_NUMB_BITS-1);
+	  else
+	    mpz_combit (got, i*GMP_NUMB_BITS-1);
+	  MPZ_CHECK_FORMAT (got);
+
+	  mpz_set_si (want, -1L);
+	  mpz_mul_2exp (want, want, i*GMP_NUMB_BITS);
+
+	  if (mpz_cmp (got, want) != 0)
+	    {
+	      if (f == 0)
+		printf ("mpz_clrbit: ");
+	      else
+		printf ("mpz_combit: ");
+	      printf ("wrong after extension\n");
+	      mpz_trace ("got ", got);
+	      mpz_trace ("want", want);
+	      abort ();
+	    }
+
+	  /* complement bit n, going back to ..11100..00 which is -2^(n-1) */
+	  if (f == 0)
+	    mpz_setbit (got, i*GMP_NUMB_BITS-1);
+	  else
+	    mpz_combit (got, i*GMP_NUMB_BITS-1);
+	  MPZ_CHECK_FORMAT (got);
+
+	  mpz_set_si (want, -1L);
+	  mpz_mul_2exp (want, want, i*GMP_NUMB_BITS - 1);
+
+	  if (mpz_cmp (got, want) != 0)
+	    {
+	      if (f == 0)
+		printf ("mpz_setbit: ");
+	      else
+		printf ("mpz_combit: ");
+	      printf ("wrong after shrinking\n");
+	      mpz_trace ("got ", got);
+	      mpz_trace ("want", want);
+	      abort ();
+	    }
+	}
+    }
+
+  mpz_clear (got);
+  mpz_clear (want);
+}
+
+void
+check_com_negs (void)
+{
+  static const struct {
+    unsigned long  bit;
+    mp_size_t      inp_size;
+    mp_limb_t      inp_n[5];
+    mp_size_t      want_size;
+    mp_limb_t      want_n[5];
+  } data[] = {
+    { GMP_NUMB_BITS,   2, { 1, 1 },  1, { 1 } },
+    { GMP_NUMB_BITS+1, 2, { 1, 1 },  2, { 1, 3 } },
+
+    { GMP_NUMB_BITS,   2, { 0, 1 },  2, { 0, 2 } },
+    { GMP_NUMB_BITS+1, 2, { 0, 1 },  2, { 0, 3 } },
+  };
+  mpz_t  inp, got, want;
+  int    i;
+
+  mpz_init (got);
+  mpz_init (want);
+  mpz_init (inp);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_n (inp, data[i].inp_n, data[i].inp_size);
+      mpz_neg (inp, inp);
+
+      mpz_set_n (want, data[i].want_n, data[i].want_size);
+      mpz_neg (want, want);
+
+      mpz_set (got, inp);
+      mpz_combit (got, data[i].bit);
+
+      if (mpz_cmp (got, want) != 0)
+	{
+	  printf ("mpz_combit: wrong on neg data[%d]\n", i);
+	  mpz_trace ("inp ", inp);
+	  printf    ("bit %lu\n", data[i].bit);
+	  mpz_trace ("got ", got);
+	  mpz_trace ("want", want);
+	  abort ();
+	}
+    }
+
+  mpz_clear (inp);
+  mpz_clear (got);
+  mpz_clear (want);
+}
+
+/* See that mpz_tstbit matches a twos complement calculated explicitly, for
+   various low zeros.  */
+void
+check_tstbit (void)
+{
+#define MAX_ZEROS  3
+#define NUM_LIMBS  3
+
+  mp_limb_t      pos[1+NUM_LIMBS+MAX_ZEROS];
+  mp_limb_t      neg[1+NUM_LIMBS+MAX_ZEROS];
+  mpz_t          z;
+  unsigned long  i;
+  int            zeros, low1;
+  int            got, want;
+
+  mpz_init (z);
+  for (zeros = 0; zeros <= MAX_ZEROS; zeros++)
+    {
+      MPN_ZERO (pos, numberof(pos));
+      mpn_random2 (pos+zeros, (mp_size_t) NUM_LIMBS);
+
+      for (low1 = 0; low1 <= 1; low1++)
+	{
+	  if (low1)
+	    pos[0] |= 1;
+
+	  refmpn_neg (neg, pos, (mp_size_t) numberof(neg));
+	  mpz_set_n (z, neg, (mp_size_t) numberof(neg));
+	  mpz_neg (z, z);
+
+	  for (i = 0; i < numberof(pos)*GMP_NUMB_BITS; i++)
+	    {
+	      got = mpz_tstbit (z, i);
+	      want = refmpn_tstbit (pos, i);
+	      if (got != want)
+		{
+		  printf ("wrong at bit %lu, with %d zeros\n", i, zeros);
+		  printf ("z neg "); debug_mp (z, -16);
+		  mpz_set_n (z, pos, (mp_size_t) numberof(pos));
+		  printf ("pos   "); debug_mp (z, -16);
+		  mpz_set_n (z, neg, (mp_size_t) numberof(neg));
+		  printf ("neg   "); debug_mp (z, -16);
+		  exit (1);
+		}
+	    }
+	}
+    }
+  mpz_clear (z);
+}
+
+
+void
+check_single (void)
+{
+  mpz_t  x;
+  int    limb, offset, initial;
+  unsigned long  bit;
+
+  mpz_init (x);
+
+  for (limb = 0; limb < 4; limb++)
+    {
+      for (offset = (limb==0 ? 0 : -2); offset <= 2; offset++)
+	{
+	  for (initial = 1; initial >= -1; initial--)
+	    {
+	      mpz_set_si (x, (long) initial);
+
+	      bit = (unsigned long) limb*GMP_LIMB_BITS + offset;
+
+	      mpz_clrbit (x, bit);
+	      MPZ_CHECK_FORMAT (x);
+	      if (mpz_tstbit (x, bit) != 0)
+		{
+		  printf ("check_single(): expected 0\n");
+		  abort ();
+		}
+
+	      mpz_setbit (x, bit);
+	      MPZ_CHECK_FORMAT (x);
+	      if (mpz_tstbit (x, bit) != 1)
+		{
+		  printf ("check_single(): expected 1\n");
+		  abort ();
+		}
+
+	      mpz_clrbit (x, bit);
+	      MPZ_CHECK_FORMAT (x);
+	      if (mpz_tstbit (x, bit) != 0)
+		{
+		  printf ("check_single(): expected 0\n");
+		  abort ();
+		}
+
+	      mpz_combit (x, bit);
+	      MPZ_CHECK_FORMAT (x);
+	      if (mpz_tstbit (x, bit) != 1)
+		{
+		  printf ("check_single(): expected 1\n");
+		  abort ();
+		}
+
+	      mpz_combit (x, bit);
+	      MPZ_CHECK_FORMAT (x);
+	      if (mpz_tstbit (x, bit) != 0)
+		{
+		  printf ("check_single(): expected 0\n");
+		  abort ();
+		}
+	    }
+	}
+    }
+
+  mpz_clear (x);
+}
+
+
+void
+check_random (int argc, char *argv[])
+{
+  mpz_t x, s0, s1, s2, s3, m;
+  mp_size_t xsize;
+  int i;
+  int reps = 100000;
+  int bit0, bit1, bit2, bit3;
+  unsigned long int bitindex;
+  const char  *s = "";
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (x);
+  mpz_init (s0);
+  mpz_init (s1);
+  mpz_init (s2);
+  mpz_init (s3);
+  mpz_init (m);
+
+  for (i = 0; i < reps; i++)
+    {
+      xsize = urandom () % (2 * SIZE) - SIZE;
+      mpz_random2 (x, xsize);
+      bitindex = urandom () % SIZE;
+
+      mpz_set (s0, x);
+      bit0 = mpz_tstbit (x, bitindex);
+      mpz_setbit (x, bitindex);
+      MPZ_CHECK_FORMAT (x);
+
+      mpz_set (s1, x);
+      bit1 = mpz_tstbit (x, bitindex);
+      mpz_clrbit (x, bitindex);
+      MPZ_CHECK_FORMAT (x);
+
+      mpz_set (s2, x);
+      bit2 = mpz_tstbit (x, bitindex);
+      mpz_combit (x, bitindex);
+      MPZ_CHECK_FORMAT (x);
+
+      mpz_set (s3, x);
+      bit3 = mpz_tstbit (x, bitindex);
+
+#define FAIL(str) do { s = str; goto fail; } while (0)
+
+      if (bit1 != 1)  FAIL ("bit1 != 1");
+      if (bit2 != 0)  FAIL ("bit2 != 0");
+      if (bit3 != 1)  FAIL ("bit3 != 1");
+
+      if (bit0 == 0)
+	{
+	  if (mpz_cmp (s0, s1) == 0 || mpz_cmp (s0, s2) != 0 || mpz_cmp (s0, s3) == 0)
+	    abort ();
+	}
+      else
+	{
+	  if (mpz_cmp (s0, s1) != 0 || mpz_cmp (s0, s2) == 0 || mpz_cmp (s0, s3) != 0)
+	    abort ();
+	}
+
+      if (mpz_cmp (s1, s2) == 0 || mpz_cmp (s1, s3) != 0)
+	abort ();
+      if (mpz_cmp (s2, s3) == 0)
+	abort ();
+
+      mpz_combit (x, bitindex);
+      MPZ_CHECK_FORMAT (x);
+      if (mpz_cmp (s2, x) != 0)
+	abort ();
+
+      mpz_clrbit (x, bitindex);
+      MPZ_CHECK_FORMAT (x);
+      if (mpz_cmp (s2, x) != 0)
+	abort ();
+
+      mpz_ui_pow_ui (m, 2L, bitindex);
+      MPZ_CHECK_FORMAT (m);
+      mpz_ior (x, s0, m);
+      MPZ_CHECK_FORMAT (x);
+      if (mpz_cmp (x, s3) != 0)
+	abort ();
+
+      mpz_com (m, m);
+      MPZ_CHECK_FORMAT (m);
+      mpz_and (x, s0, m);
+      MPZ_CHECK_FORMAT (x);
+      if (mpz_cmp (x, s2) != 0)
+	abort ();
+    }
+
+  mpz_clear (x);
+  mpz_clear (s0);
+  mpz_clear (s1);
+  mpz_clear (s2);
+  mpz_clear (s3);
+  mpz_clear (m);
+  return;
+
+
+ fail:
+  printf ("%s\n", s);
+  printf ("bitindex = %lu\n", bitindex);
+  printf ("x = "); mpz_out_str (stdout, -16, x); printf (" hex\n");
+  exit (1);
+}
+
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_clr_extend ();
+  check_com_negs ();
+  check_tstbit ();
+  check_random (argc, argv);
+  check_single ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-cdiv_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-cdiv_ui.c
new file mode 100644
index 0000000..91559ea
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-cdiv_ui.c
@@ -0,0 +1,158 @@
+/* Test mpz_abs, mpz_add, mpz_cmp, mpz_cmp_ui, mpz_cdiv_qr_ui, mpz_cdiv_q_ui,
+   mpz_cdiv_r_ui, , mpz_cdiv_ui, mpz_mul_ui.
+
+Copyright 1993, 1994, 1996, 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (const char *, mpz_t, unsigned long);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t dividend;
+  mpz_t quotient, remainder;
+  mpz_t quotient2, remainder2;
+  mpz_t temp;
+  mp_size_t dividend_size;
+  unsigned long divisor;
+  int i;
+  int reps = 10000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  unsigned long r_rq, r_q, r_r, r;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (dividend);
+  mpz_init (quotient);
+  mpz_init (remainder);
+  mpz_init (quotient2);
+  mpz_init (remainder2);
+  mpz_init (temp);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + 2; /* 0..2047 bit operands */
+
+      do
+	{
+	  mpz_rrandomb (bs, rands, 64);
+	  divisor = mpz_get_ui (bs);
+	}
+      while (divisor == 0);
+
+      mpz_urandomb (bs, rands, size_range);
+      dividend_size = mpz_get_ui (bs);
+      mpz_rrandomb (dividend, rands, dividend_size);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (dividend, dividend);
+
+      /* printf ("%ld\n", SIZ (dividend)); */
+
+      r_rq = mpz_cdiv_qr_ui (quotient, remainder, dividend, divisor);
+      r_q = mpz_cdiv_q_ui (quotient2, dividend, divisor);
+      r_r = mpz_cdiv_r_ui (remainder2, dividend, divisor);
+      r = mpz_cdiv_ui (dividend, divisor);
+
+      /* First determine that the quotients and remainders computed
+	 with different functions are equal.  */
+      if (mpz_cmp (quotient, quotient2) != 0)
+	dump_abort ("quotients from mpz_cdiv_qr_ui and mpz_cdiv_q_ui differ",
+		    dividend, divisor);
+      if (mpz_cmp (remainder, remainder2) != 0)
+	dump_abort ("remainders from mpz_cdiv_qr_ui and mpz_cdiv_r_ui differ",
+		    dividend, divisor);
+
+      /* Check if the sign of the quotient is correct.  */
+      if (mpz_cmp_ui (quotient, 0) != 0)
+	if ((mpz_cmp_ui (quotient, 0) < 0)
+	    != (mpz_cmp_ui (dividend, 0) < 0))
+	dump_abort ("quotient sign wrong", dividend, divisor);
+
+      /* Check if the remainder has the opposite sign as the (positive) divisor
+	 (quotient rounded towards minus infinity).  */
+      if (mpz_cmp_ui (remainder, 0) != 0)
+	if (mpz_cmp_ui (remainder, 0) > 0)
+	  dump_abort ("remainder sign wrong", dividend, divisor);
+
+      mpz_mul_ui (temp, quotient, divisor);
+      mpz_add (temp, temp, remainder);
+      if (mpz_cmp (temp, dividend) != 0)
+	dump_abort ("n mod d != n - [n/d]*d", dividend, divisor);
+
+      mpz_abs (remainder, remainder);
+      if (mpz_cmp_ui (remainder, divisor) >= 0)
+	dump_abort ("remainder greater than divisor", dividend, divisor);
+
+      if (mpz_cmp_ui (remainder, r_rq) != 0)
+	dump_abort ("remainder returned from mpz_cdiv_qr_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r_q) != 0)
+	dump_abort ("remainder returned from mpz_cdiv_q_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r_r) != 0)
+	dump_abort ("remainder returned from mpz_cdiv_r_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r) != 0)
+	dump_abort ("remainder returned from mpz_cdiv_ui is wrong",
+		    dividend, divisor);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (dividend);
+  mpz_clear (quotient);
+  mpz_clear (remainder);
+  mpz_clear (quotient2);
+  mpz_clear (remainder2);
+  mpz_clear (temp);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (const char *str, mpz_t dividend, unsigned long divisor)
+{
+  fprintf (stderr, "ERROR: %s\n", str);
+  fprintf (stderr, "dividend = "); debug_mp (dividend, -16);
+  fprintf (stderr, "divisor  = %lX\n", divisor);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-cmp.c b/vendor/gmp-6.3.0/tests/mpz/t-cmp.c
new file mode 100644
index 0000000..1ae2517
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-cmp.c
@@ -0,0 +1,181 @@
+/* Test mpz_cmp and mpz_cmpabs.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Nothing sophisticated here, just exercise some combinations of sizes and
+   signs.  */
+
+
+void
+check_one (mpz_ptr x, mpz_ptr y, int want_cmp, int want_cmpabs)
+{
+  int  got;
+
+  got = mpz_cmp (x, y);
+  if ((   got <  0) != (want_cmp <  0)
+      || (got == 0) != (want_cmp == 0)
+      || (got >  0) != (want_cmp >  0))
+    {
+      printf ("mpz_cmp got %d want %d\n", got, want_cmp);
+      mpz_trace ("x", x);
+      mpz_trace ("y", y);
+      abort ();
+    }
+
+  got = mpz_cmpabs (x, y);
+  if ((   got <  0) != (want_cmpabs <  0)
+      || (got == 0) != (want_cmpabs == 0)
+      || (got >  0) != (want_cmpabs >  0))
+    {
+      printf ("mpz_cmpabs got %d want %d\n", got, want_cmpabs);
+      mpz_trace ("x", x);
+      mpz_trace ("y", y);
+      abort ();
+    }
+}
+
+
+void
+check_all (mpz_ptr x, mpz_ptr y, int want_cmp, int want_cmpabs)
+{
+  check_one (x, y,  want_cmp,  want_cmpabs);
+  check_one (y, x, -want_cmp, -want_cmpabs);
+
+  mpz_neg (x, x);
+  mpz_neg (y, y);
+  want_cmp = -want_cmp;
+
+  check_one (x, y,  want_cmp,  want_cmpabs);
+  check_one (y, x, -want_cmp, -want_cmpabs);
+}
+
+
+#define SET1(z,size, n) \
+  SIZ(z) = size; PTR(z)[0] = n
+
+#define SET2(z,size, n1,n0) \
+  SIZ(z) = size; PTR(z)[1] = n1; PTR(z)[0] = n0
+
+#define SET4(z,size, n3,n2,n1,n0) \
+  SIZ(z) = size; PTR(z)[3] = n3; PTR(z)[2] = n2; PTR(z)[1] = n1; PTR(z)[0] = n0
+
+void
+check_various (void)
+{
+  mpz_t  x, y;
+
+  mpz_init (x);
+  mpz_init (y);
+
+  mpz_realloc (x, (mp_size_t) 20);
+  mpz_realloc (y, (mp_size_t) 20);
+
+  /* 0 cmp 0, junk in low limbs */
+  SET1 (x,0, 123);
+  SET1 (y,0, 456);
+  check_all (x, y, 0, 0);
+
+
+  /* 123 cmp 0 */
+  SET1 (x,1, 123);
+  SET1 (y,0, 456);
+  check_all (x, y, 1, 1);
+
+  /* 123:456 cmp 0 */
+  SET2 (x,2, 456,123);
+  SET1 (y,0, 9999);
+  check_all (x, y, 1, 1);
+
+
+  /* 123 cmp 123 */
+  SET1(x,1, 123);
+  SET1(y,1, 123);
+  check_all (x, y, 0, 0);
+
+  /* -123 cmp 123 */
+  SET1(x,-1, 123);
+  SET1(y,1,  123);
+  check_all (x, y, -1, 0);
+
+
+  /* 123 cmp 456 */
+  SET1(x,1, 123);
+  SET1(y,1, 456);
+  check_all (x, y, -1, -1);
+
+  /* -123 cmp 456 */
+  SET1(x,-1, 123);
+  SET1(y,1,  456);
+  check_all (x, y, -1, -1);
+
+  /* 123 cmp -456 */
+  SET1(x,1,  123);
+  SET1(y,-1, 456);
+  check_all (x, y, 1, -1);
+
+
+  /* 1:0 cmp 1:0 */
+  SET2 (x,2, 1,0);
+  SET2 (y,2, 1,0);
+  check_all (x, y, 0, 0);
+
+  /* -1:0 cmp 1:0 */
+  SET2 (x,-2, 1,0);
+  SET2 (y,2,  1,0);
+  check_all (x, y, -1, 0);
+
+
+  /* 2:0 cmp 1:0 */
+  SET2 (x,2, 2,0);
+  SET2 (y,2, 1,0);
+  check_all (x, y, 1, 1);
+
+
+  /* 4:3:2:1 cmp 2:1 */
+  SET4 (x,4, 4,3,2,1);
+  SET2 (y,2, 2,1);
+  check_all (x, y, 1, 1);
+
+  /* -4:3:2:1 cmp 2:1 */
+  SET4 (x,-4, 4,3,2,1);
+  SET2 (y,2,  2,1);
+  check_all (x, y, -1, 1);
+
+
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_various ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-cmp_d.c b/vendor/gmp-6.3.0/tests/mpz/t-cmp_d.c
new file mode 100644
index 0000000..d7b9895
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-cmp_d.c
@@ -0,0 +1,292 @@
+/* Test mpz_cmp_d and mpz_cmpabs_d.
+
+Copyright 2001-2003, 2005 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* FIXME: Not sure if the tests here are exhaustive.  Ought to try to get
+   each possible exit from mpz_cmp_d (and mpz_cmpabs_d) exercised.  */
+
+
+#define SGN(n)  ((n) > 0 ? 1 : (n) < 0 ? -1 : 0)
+
+
+void
+check_one (const char *name, mpz_srcptr x, double y, int cmp, int cmpabs)
+{
+  int   got;
+
+  got = mpz_cmp_d (x, y);
+  if (SGN(got) != cmp)
+    {
+      int i;
+      printf    ("mpz_cmp_d wrong (from %s)\n", name);
+      printf    ("  got  %d\n", got);
+      printf    ("  want %d\n", cmp);
+    fail:
+      mpz_trace ("  x", x);
+      printf    ("  y %g\n", y);
+      mp_trace_base=-16;
+      mpz_trace ("  x", x);
+      printf    ("  y %g\n", y);
+      printf    ("  y");
+      for (i = 0; i < sizeof(y); i++)
+        printf (" %02X", (unsigned) ((unsigned char *) &y)[i]);
+      printf ("\n");
+      abort ();
+    }
+
+  got = mpz_cmpabs_d (x, y);
+  if (SGN(got) != cmpabs)
+    {
+      printf    ("mpz_cmpabs_d wrong\n");
+      printf    ("  got  %d\n", got);
+      printf    ("  want %d\n", cmpabs);
+      goto fail;
+    }
+}
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *x;
+    double      y;
+    int         cmp, cmpabs;
+
+  } data[] = {
+
+    {  "0",  0.0,  0,  0 },
+
+    {  "1",  0.0,  1,  1 },
+    { "-1",  0.0, -1,  1 },
+
+    {  "1",  0.5,  1,  1 },
+    { "-1", -0.5, -1,  1 },
+
+    {  "0",  1.0, -1, -1 },
+    {  "0", -1.0,  1, -1 },
+
+    {  "0x1000000000000000000000000000000000000000000000000", 1.0,  1, 1 },
+    { "-0x1000000000000000000000000000000000000000000000000", 1.0, -1, 1 },
+
+    {  "0",  1e100, -1, -1 },
+    {  "0", -1e100,  1, -1 },
+
+    {  "2",  1.5,   1,  1 },
+    {  "2", -1.5,   1,  1 },
+    { "-2",  1.5,  -1,  1 },
+    { "-2", -1.5,  -1,  1 },
+  };
+
+  mpz_t  x;
+  int    i;
+
+  mpz_init (x);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (x, data[i].x, 0);
+      check_one ("check_data", x, data[i].y, data[i].cmp, data[i].cmpabs);
+    }
+
+  mpz_clear (x);
+}
+
+
+/* Equality of integers with up to 53 bits */
+void
+check_onebits (void)
+{
+  mpz_t   x, x2;
+  double  y;
+  int     i;
+
+  mpz_init_set_ui (x, 0L);
+  mpz_init (x2);
+
+  for (i = 0; i < 512; i++)
+    {
+      mpz_mul_2exp (x, x, 1);
+      mpz_add_ui (x, x, 1L);
+
+      y = mpz_get_d (x);
+      mpz_set_d (x2, y);
+
+      /* stop if any truncation is occurring */
+      if (mpz_cmp (x, x2) != 0)
+        break;
+
+      check_one ("check_onebits", x, y, 0, 0);
+      check_one ("check_onebits", x, -y, 1, 0);
+      mpz_neg (x, x);
+      check_one ("check_onebits", x, y, -1, 0);
+      check_one ("check_onebits", x, -y, 0, 0);
+      mpz_neg (x, x);
+    }
+
+  mpz_clear (x);
+  mpz_clear (x2);
+}
+
+
+/* With the mpz differing by 1, in a limb position possibly below the double */
+void
+check_low_z_one (void)
+{
+  mpz_t          x;
+  double         y;
+  unsigned long  i;
+
+  mpz_init (x);
+
+  /* FIXME: It'd be better to base this on the float format. */
+#if defined (__vax) || defined (__vax__)
+#define LIM 127			/* vax fp numbers have limited range */
+#else
+#define LIM 512
+#endif
+
+  for (i = 1; i < LIM; i++)
+    {
+      mpz_set_ui (x, 1L);
+      mpz_mul_2exp (x, x, i);
+      y = mpz_get_d (x);
+
+      check_one ("check_low_z_one", x, y,   0, 0);
+      check_one ("check_low_z_one", x, -y,  1, 0);
+      mpz_neg (x, x);
+      check_one ("check_low_z_one", x, y,  -1, 0);
+      check_one ("check_low_z_one", x, -y,  0, 0);
+      mpz_neg (x, x);
+
+      mpz_sub_ui (x, x, 1);
+
+      check_one ("check_low_z_one", x, y,  -1, -1);
+      check_one ("check_low_z_one", x, -y,  1, -1);
+      mpz_neg (x, x);
+      check_one ("check_low_z_one", x, y,  -1, -1);
+      check_one ("check_low_z_one", x, -y,  1, -1);
+      mpz_neg (x, x);
+
+      mpz_add_ui (x, x, 2);
+
+      check_one ("check_low_z_one", x, y,   1, 1);
+      check_one ("check_low_z_one", x, -y,  1, 1);
+      mpz_neg (x, x);
+      check_one ("check_low_z_one", x, y,  -1, 1);
+      check_one ("check_low_z_one", x, -y, -1, 1);
+      mpz_neg (x, x);
+    }
+
+  mpz_clear (x);
+}
+
+/* Comparing 1 and 1+2^-n.  "y" is volatile to make gcc store and fetch it,
+   which forces it to a 64-bit double, whereas on x86 it would otherwise
+   remain on the float stack as an 80-bit long double.  */
+void
+check_one_2exp (void)
+{
+  double           e;
+  mpz_t            x;
+  volatile double  y;
+  int              i;
+
+  mpz_init (x);
+
+  e = 1.0;
+  for (i = 0; i < 128; i++)
+    {
+      e /= 2.0;
+      y = 1.0 + e;
+      if (y == 1.0)
+        break;
+
+      mpz_set_ui (x, 1L);
+      check_one ("check_one_2exp", x,  y, -1, -1);
+      check_one ("check_one_2exp", x, -y,  1, -1);
+
+      mpz_set_si (x, -1L);
+      check_one ("check_one_2exp", x,  y, -1, -1);
+      check_one ("check_one_2exp", x, -y,  1, -1);
+    }
+
+  mpz_clear (x);
+}
+
+void
+check_infinity (void)
+{
+  mpz_t   x;
+  double  y = tests_infinity_d ();
+  if (y == 0.0)
+    return;
+
+  mpz_init (x);
+
+  /* 0 cmp inf */
+  mpz_set_ui (x, 0L);
+  check_one ("check_infinity", x,  y, -1, -1);
+  check_one ("check_infinity", x, -y,  1, -1);
+
+  /* 123 cmp inf */
+  mpz_set_ui (x, 123L);
+  check_one ("check_infinity", x,  y, -1, -1);
+  check_one ("check_infinity", x, -y,  1, -1);
+
+  /* -123 cmp inf */
+  mpz_set_si (x, -123L);
+  check_one ("check_infinity", x,  y, -1, -1);
+  check_one ("check_infinity", x, -y,  1, -1);
+
+  /* 2^5000 cmp inf */
+  mpz_set_ui (x, 1L);
+  mpz_mul_2exp (x, x, 5000L);
+  check_one ("check_infinity", x,  y, -1, -1);
+  check_one ("check_infinity", x, -y,  1, -1);
+
+  /* -2^5000 cmp inf */
+  mpz_neg (x, x);
+  check_one ("check_infinity", x,  y, -1, -1);
+  check_one ("check_infinity", x, -y,  1, -1);
+
+  mpz_clear (x);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_data ();
+  check_onebits ();
+  check_low_z_one ();
+  check_one_2exp ();
+  check_infinity ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-cmp_si.c b/vendor/gmp-6.3.0/tests/mpz/t-cmp_si.c
new file mode 100644
index 0000000..7667d3e
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-cmp_si.c
@@ -0,0 +1,101 @@
+/* Test mpz_cmp_si.
+
+Copyright 2000, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+#define SGN(x)       ((x) < 0 ? -1 : (x) == 0 ? 0 : 1)
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *a, *b;
+    int         want;
+  } data[] = {
+    { "0",  "1", -1 },
+    { "0",  "0",  0 },
+    { "0", "-1",  1 },
+
+    { "1",  "1", 0 },
+    { "1",  "0", 1 },
+    { "1", "-1", 1 },
+
+    { "-1",  "1", -1 },
+    { "-1",  "0", -1 },
+    { "-1", "-1", 0 },
+
+    {           "0", "-0x80000000",  1 },
+    {  "0x80000000", "-0x80000000",  1 },
+    {  "0x80000001", "-0x80000000",  1 },
+    { "-0x80000000", "-0x80000000",  0 },
+    { "-0x80000001", "-0x80000000", -1 },
+
+    {                   "0", "-0x8000000000000000",  1 },
+    {  "0x8000000000000000", "-0x8000000000000000",  1 },
+    {  "0x8000000000000001", "-0x8000000000000000",  1 },
+    { "-0x8000000000000000", "-0x8000000000000000",  0 },
+    { "-0x8000000000000001", "-0x8000000000000000", -1 },
+  };
+
+  mpz_t  a, bz;
+  long   b;
+  int    got;
+  int    i;
+
+  mpz_init (a);
+  mpz_init (bz);
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (bz, data[i].b, 0);
+
+      if (mpz_fits_slong_p (bz))
+	{
+	  b = mpz_get_si (bz);
+	  got = mpz_cmp_si (a, b);
+	  if (SGN (got) != data[i].want)
+	    {
+	      printf ("mpz_cmp_si wrong on data[%d]\n", i);
+	      printf ("  a="); mpz_out_str (stdout, 10, a); printf ("\n");
+	      printf ("  b=%ld\n", b);
+	      printf ("  got=%d\n", got);
+	      printf ("  want=%d\n", data[i].want);
+	      abort();
+	    }
+	}
+    }
+
+  mpz_clear (a);
+  mpz_clear (bz);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-cong.c b/vendor/gmp-6.3.0/tests/mpz/t-cong.c
new file mode 100644
index 0000000..59d8526
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-cong.c
@@ -0,0 +1,226 @@
+/* test mpz_congruent_p and mpz_congruent_ui_p
+
+Copyright 2001, 2002, 2012 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr a, mpz_srcptr c, mpz_srcptr d, int want)
+{
+  int   got;
+  int   swap;
+
+  for (swap = 0; swap <= 1; swap++)
+    {
+      got = (mpz_congruent_p (a, c, d) != 0);
+      if (want != got)
+	{
+	  printf ("mpz_congruent_p wrong\n");
+	  printf ("   expected %d got %d\n", want, got);
+	  mpz_trace ("	 a", a);
+	  mpz_trace ("	 c", c);
+	  mpz_trace ("	 d", d);
+	  mp_trace_base = -16;
+	  mpz_trace ("	 a", a);
+	  mpz_trace ("	 c", c);
+	  mpz_trace ("	 d", d);
+	  abort ();
+	}
+
+      if (mpz_fits_ulong_p (c) && mpz_fits_ulong_p (d))
+	{
+	  unsigned long	 uc = mpz_get_ui (c);
+	  unsigned long	 ud = mpz_get_ui (d);
+	  got = (mpz_congruent_ui_p (a, uc, ud) != 0);
+	  if (want != got)
+	    {
+	      printf	("mpz_congruent_ui_p wrong\n");
+	      printf	("   expected %d got %d\n", want, got);
+	      mpz_trace ("   a", a);
+	      printf	("   c=%lu\n", uc);
+	      printf	("   d=%lu\n", ud);
+	      mp_trace_base = -16;
+	      mpz_trace ("   a", a);
+	      printf	("   c=0x%lX\n", uc);
+	      printf	("   d=0x%lX\n", ud);
+	      abort ();
+	    }
+	}
+
+      MPZ_SRCPTR_SWAP (a, c);
+    }
+}
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char *a;
+    const char *c;
+    const char *d;
+    int        want;
+
+  } data[] = {
+
+    /* strict equality mod 0 */
+    { "0", "0", "0", 1 },
+    { "11", "11", "0", 1 },
+    { "3", "11", "0", 0 },
+
+    /* anything congruent mod 1 */
+    { "0", "0", "1", 1 },
+    { "1", "0", "1", 1 },
+    { "0", "1", "1", 1 },
+    { "123", "456", "1", 1 },
+    { "0x123456789123456789", "0x987654321987654321", "1", 1 },
+
+    /* csize==1, dsize==2 changing to 1 after stripping 2s */
+    { "0x3333333333333333",  "0x33333333",
+      "0x180000000", 1 },
+    { "0x33333333333333333333333333333333", "0x3333333333333333",
+      "0x18000000000000000", 1 },
+
+    /* another dsize==2 becoming 1, with opposite signs this time */
+    {  "0x444444441",
+      "-0x22222221F",
+       "0x333333330", 1 },
+    {  "0x44444444444444441",
+      "-0x2222222222222221F",
+       "0x33333333333333330", 1 },
+  };
+
+  mpz_t   a, c, d;
+  int     i;
+
+  mpz_init (a);
+  mpz_init (c);
+  mpz_init (d);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (c, data[i].c, 0);
+      mpz_set_str_or_abort (d, data[i].d, 0);
+      check_one (a, c, d, data[i].want);
+    }
+
+  mpz_clear (a);
+  mpz_clear (c);
+  mpz_clear (d);
+}
+
+
+void
+check_random (int argc, char *argv[])
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t   a, c, d, ra, rc;
+  int     i;
+  int     want;
+  int     reps = 10000;
+  mpz_t bs;
+  unsigned long size_range, size;
+
+  if (argc >= 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (bs);
+
+  mpz_init (a);
+  mpz_init (c);
+  mpz_init (d);
+  mpz_init (ra);
+  mpz_init (rc);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 1; /* 0..65536 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (a, rands, size);
+
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 1; /* 0..65536 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (c, rands, size);
+
+      do
+	{
+	  mpz_urandomb (bs, rands, 32);
+	  size_range = mpz_get_ui (bs) % 16 + 1; /* 0..65536 bit operands */
+
+	  mpz_urandomb (bs, rands, size_range);
+	  size = mpz_get_ui (bs);
+	  mpz_rrandomb (d, rands, size);
+	}
+      while (SIZ(d) == 0);
+
+      mpz_negrandom (a, rands);
+      MPZ_CHECK_FORMAT (a);
+      mpz_negrandom (c, rands);
+      MPZ_CHECK_FORMAT (c);
+      mpz_negrandom (d, rands);
+
+      mpz_fdiv_r (ra, a, d);
+      mpz_fdiv_r (rc, c, d);
+
+      want = (mpz_cmp (ra, rc) == 0);
+      check_one (a, c, d, want);
+
+      mpz_sub (ra, ra, rc);
+      mpz_sub (a, a, ra);
+      MPZ_CHECK_FORMAT (a);
+      check_one (a, c, d, 1);
+
+      if (! mpz_pow2abs_p (d))
+        {
+	  refmpz_combit (a, urandom() % (8*GMP_LIMB_BITS));
+	  check_one (a, c, d, 0);
+        }
+    }
+
+  mpz_clear (bs);
+
+  mpz_clear (a);
+  mpz_clear (c);
+  mpz_clear (d);
+  mpz_clear (ra);
+  mpz_clear (rc);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_data ();
+  check_random (argc, argv);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-cong_2exp.c b/vendor/gmp-6.3.0/tests/mpz/t-cong_2exp.c
new file mode 100644
index 0000000..5ffe2d1
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-cong_2exp.c
@@ -0,0 +1,207 @@
+/* test mpz_congruent_2exp_p */
+
+/*
+Copyright 2001, 2013 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr a, mpz_srcptr c, unsigned long d, int want)
+{
+  mpz_t  diff, d2exp;
+  int    got;
+  int    swap;
+
+  for (swap = 0; swap <= 1; swap++)
+    {
+      got = (mpz_congruent_2exp_p (a, c, d) != 0);
+      if (want != got)
+        {
+          mpz_init (diff);
+          mpz_init (d2exp);
+
+          mpz_sub (diff, a, c);
+          mpz_set_ui (d2exp, 1L);
+          mpz_mul_2exp (d2exp, d2exp, d);
+
+          printf ("mpz_congruent_2exp_p wrong\n");
+          printf ("   expected %d got %d\n", want, got);
+          mpz_trace ("   a", a);
+          mpz_trace ("   c", c);
+          mpz_trace (" a-c", diff);
+          mpz_trace (" 2^d", d2exp);
+          printf    ("   d=%lu\n", d);
+
+          mp_trace_base = -16;
+          mpz_trace ("   a", a);
+          mpz_trace ("   c", c);
+          mpz_trace (" a-c", diff);
+          mpz_trace (" 2^d", d2exp);
+          printf    ("   d=0x%lX\n", d);
+          abort ();
+        }
+
+      MPZ_SRCPTR_SWAP (a, c);
+    }
+}
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char     *a;
+    const char     *c;
+    unsigned long  d;
+    int            want;
+
+  } data[] = {
+
+    /* anything is congruent mod 1 */
+    { "0", "0", 0, 1 },
+    { "1", "0", 0, 1 },
+    { "0", "1", 0, 1 },
+    { "123", "-456", 0, 1 },
+    { "0x123456789123456789", "0x987654321987654321", 0, 1 },
+    { "0xfffffffffffffffffffffffffffffff7", "-0x9", 129, 0 },
+    { "0xfffffffffffffffffffffffffffffff6", "-0xa", 128, 1 },
+
+  };
+
+  mpz_t   a, c;
+  int     i;
+
+  mpz_init (a);
+  mpz_init (c);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (c, data[i].c, 0);
+      check_one (a, c, data[i].d, data[i].want);
+    }
+
+  mpz_clear (a);
+  mpz_clear (c);
+}
+
+
+void
+check_random (int reps)
+{
+  gmp_randstate_ptr rands = RANDS;
+  unsigned long  d;
+  mpz_t  a, c, ra, rc;
+  int    i;
+
+  mpz_init (a);
+  mpz_init (c);
+  mpz_init (ra);
+  mpz_init (rc);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_errandomb (a, rands, 8*GMP_LIMB_BITS);
+      mpz_errandomb (c, rands, 8*GMP_LIMB_BITS);
+      d = urandom() % (8*GMP_LIMB_BITS);
+
+      mpz_mul_2exp (a, a, urandom() % (2*GMP_LIMB_BITS));
+      mpz_mul_2exp (c, c, urandom() % (2*GMP_LIMB_BITS));
+
+      mpz_negrandom (a, rands);
+      mpz_negrandom (c, rands);
+
+      mpz_fdiv_r_2exp (ra, a, d);
+      mpz_fdiv_r_2exp (rc, c, d);
+
+      mpz_sub (ra, ra, rc);
+      if (mpz_cmp_ui (ra, 0) != 0)
+	{
+	  check_one (a, c, d, 0);
+	  mpz_sub (a, a, ra);
+	}
+      check_one (a, c, d, 1);
+      if (d != 0)
+	{
+	  mpz_combit (a, urandom() % d);
+	  check_one (a, c, d, 0);
+	}
+    }
+
+  mpz_clear (a);
+  mpz_clear (c);
+  mpz_clear (ra);
+  mpz_clear (rc);
+}
+
+void
+check_random_bits (int reps)
+{
+  mp_bitcnt_t ea, ec, en, d;
+  mp_bitcnt_t m = 10 * GMP_LIMB_BITS;
+  mpz_t  a, c;
+  int    i;
+
+  mpz_init2 (a, m + 1);
+  mpz_init2 (c, m);
+
+  for (i = 0; i < reps; i++)
+    {
+      d  = urandom() % m;
+      ea = urandom() % m;
+      ec = urandom() % m;
+      en = urandom() % m;
+
+      mpz_set_ui (c, 0);
+      mpz_setbit (c, en);
+
+      mpz_set_ui (a, 0);
+      mpz_setbit (a, ec);
+      mpz_sub (c , a, c);
+
+      mpz_set_ui (a, 0);
+      mpz_setbit (a, ea);
+      mpz_add (a , a, c);
+
+      check_one (a, c, d, ea >= d);
+    }
+
+  mpz_clear (a);
+  mpz_clear (c);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  int    reps = 5000;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  check_data ();
+  check_random (reps);
+  check_random_bits (reps);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-div_2exp.c b/vendor/gmp-6.3.0/tests/mpz/t-div_2exp.c
new file mode 100644
index 0000000..d012aae
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-div_2exp.c
@@ -0,0 +1,223 @@
+/* Test mpz_[cft]div_[qr]_2exp.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* If the remainder is in the correct range and q*d+r is correct, then q
+   must have rounded correctly.  */
+
+void
+check_one (mpz_srcptr a, unsigned long d)
+{
+  mpz_t  q, r, p, d2exp;
+  int    inplace;
+
+  mpz_init (d2exp);
+  mpz_init (q);
+  mpz_init (r);
+  mpz_init (p);
+
+  mpz_set_ui (d2exp, 1L);
+  mpz_mul_2exp (d2exp, d2exp, d);
+
+#define INPLACE(fun,dst,src,d)  \
+  if (inplace)                  \
+    {                           \
+      mpz_set (dst, src);       \
+      fun (dst, dst, d);        \
+    }                           \
+  else                          \
+    fun (dst, src, d);
+
+  for (inplace = 0; inplace <= 1; inplace++)
+    {
+      INPLACE (mpz_fdiv_q_2exp, q, a, d);
+      INPLACE (mpz_fdiv_r_2exp, r, a, d);
+
+      mpz_mul_2exp (p, q, d);
+      mpz_add (p, p, r);
+      if (mpz_sgn (r) < 0 || mpz_cmp (r, d2exp) >= 0)
+	{
+	  printf ("mpz_fdiv_r_2exp result out of range\n");
+	  goto error;
+	}
+      if (mpz_cmp (p, a) != 0)
+	{
+	  printf ("mpz_fdiv_[qr]_2exp doesn't multiply back\n");
+	  goto error;
+	}
+
+
+      INPLACE (mpz_cdiv_q_2exp, q, a, d);
+      INPLACE (mpz_cdiv_r_2exp, r, a, d);
+
+      mpz_mul_2exp (p, q, d);
+      mpz_add (p, p, r);
+      if (mpz_sgn (r) > 0 || mpz_cmpabs (r, d2exp) >= 0)
+	{
+	  printf ("mpz_cdiv_r_2exp result out of range\n");
+	  goto error;
+	}
+      if (mpz_cmp (p, a) != 0)
+	{
+	  printf ("mpz_cdiv_[qr]_2exp doesn't multiply back\n");
+	  goto error;
+	}
+
+
+      INPLACE (mpz_tdiv_q_2exp, q, a, d);
+      INPLACE (mpz_tdiv_r_2exp, r, a, d);
+
+      mpz_mul_2exp (p, q, d);
+      mpz_add (p, p, r);
+      if (mpz_sgn (r) != 0 && mpz_sgn (r) != mpz_sgn (a))
+	{
+	  printf ("mpz_tdiv_r_2exp result wrong sign\n");
+	  goto error;
+	}
+      if (mpz_cmpabs (r, d2exp) >= 0)
+	{
+	  printf ("mpz_tdiv_r_2exp result out of range\n");
+	  goto error;
+	}
+      if (mpz_cmp (p, a) != 0)
+	{
+	  printf ("mpz_tdiv_[qr]_2exp doesn't multiply back\n");
+	  goto error;
+	}
+    }
+
+  mpz_clear (d2exp);
+  mpz_clear (q);
+  mpz_clear (r);
+  mpz_clear (p);
+  return;
+
+
+ error:
+  mpz_trace ("a", a);
+  printf    ("d=%lu\n", d);
+  mpz_trace ("q", q);
+  mpz_trace ("r", r);
+  mpz_trace ("p", p);
+
+  mp_trace_base = -16;
+  mpz_trace ("a", a);
+  printf    ("d=0x%lX\n", d);
+  mpz_trace ("q", q);
+  mpz_trace ("r", r);
+  mpz_trace ("p", p);
+
+  abort ();
+}
+
+
+void
+check_all (mpz_ptr a, unsigned long d)
+{
+  check_one (a, d);
+  mpz_neg (a, a);
+  check_one (a, d);
+}
+
+
+void
+check_various (void)
+{
+  static const unsigned long  table[] = {
+    0, 1, 2, 3, 4, 5,
+    GMP_NUMB_BITS-1, GMP_NUMB_BITS, GMP_NUMB_BITS+1,
+    2*GMP_NUMB_BITS-1, 2*GMP_NUMB_BITS, 2*GMP_NUMB_BITS+1,
+    3*GMP_NUMB_BITS-1, 3*GMP_NUMB_BITS, 3*GMP_NUMB_BITS+1,
+    4*GMP_NUMB_BITS-1, 4*GMP_NUMB_BITS, 4*GMP_NUMB_BITS+1
+  };
+
+  int            i, j;
+  unsigned long  n, d;
+  mpz_t          a;
+
+  mpz_init (a);
+
+  /* a==0, and various d */
+  mpz_set_ui (a, 0L);
+  for (i = 0; i < numberof (table); i++)
+    check_one (a, table[i]);
+
+  /* a==2^n, and various d */
+  for (i = 0; i < numberof (table); i++)
+    {
+      n = table[i];
+      mpz_set_ui (a, 1L);
+      mpz_mul_2exp (a, a, n);
+
+      for (j = 0; j < numberof (table); j++)
+	{
+	  d = table[j];
+	  check_all (a, d);
+	}
+    }
+
+  mpz_clear (a);
+}
+
+
+void
+check_random (int argc, char *argv[])
+{
+  gmp_randstate_ptr  rands = RANDS;
+  int            reps = 100;
+  mpz_t          a;
+  unsigned long  d;
+  int            i;
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (a);
+
+  for (i = 0; i < reps; i++)
+    {
+      /* exponentially within 2 to 257 bits */
+      mpz_erandomb (a, rands, urandom () % 8 + 2);
+
+      d = urandom () % 256;
+
+      check_all (a, d);
+    }
+
+  mpz_clear (a);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_various ();
+  check_random (argc, argv);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-divis.c b/vendor/gmp-6.3.0/tests/mpz/t-divis.c
new file mode 100644
index 0000000..fe8186a
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-divis.c
@@ -0,0 +1,166 @@
+/* test mpz_divisible_p and mpz_divisible_ui_p
+
+Copyright 2001, 2009 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr a, mpz_srcptr d, int want)
+{
+  int   got;
+
+  if (mpz_fits_ulong_p (d))
+    {
+      unsigned long  u = mpz_get_ui (d);
+      got = (mpz_divisible_ui_p (a, u) != 0);
+      if (want != got)
+        {
+          printf ("mpz_divisible_ui_p wrong\n");
+          printf ("   expected %d got %d\n", want, got);
+          mpz_trace ("   a", a);
+          printf ("   d=%lu\n", u);
+          mp_trace_base = -16;
+          mpz_trace ("   a", a);
+          printf ("   d=0x%lX\n", u);
+          abort ();
+        }
+    }
+
+  got = (mpz_divisible_p (a, d) != 0);
+  if (want != got)
+    {
+      printf ("mpz_divisible_p wrong\n");
+      printf ("   expected %d got %d\n", want, got);
+      mpz_trace ("   a", a);
+      mpz_trace ("   d", d);
+      mp_trace_base = -16;
+      mpz_trace ("   a", a);
+      mpz_trace ("   d", d);
+      abort ();
+    }
+}
+
+void
+check_data (void)
+{
+  static const struct {
+    const char *a;
+    const char *d;
+    int        want;
+
+  } data[] = {
+
+    { "0",    "0", 1 },
+    { "17",   "0", 0 },
+    { "0",    "1", 1 },
+    { "123",  "1", 1 },
+    { "-123", "1", 1 },
+
+    { "0",  "2", 1 },
+    { "1",  "2", 0 },
+    { "2",  "2", 1 },
+    { "-2", "2", 1 },
+    { "0x100000000000000000000000000000000", "2", 1 },
+    { "0x100000000000000000000000000000001", "2", 0 },
+
+    { "0x3333333333333333", "3", 1 },
+    { "0x3333333333333332", "3", 0 },
+    { "0x33333333333333333333333333333333", "3", 1 },
+    { "0x33333333333333333333333333333332", "3", 0 },
+
+    /* divisor changes from 2 to 1 limb after stripping 2s */
+    {          "0x3333333300000000",         "0x180000000",         1 },
+    {  "0x33333333333333330000000000000000", "0x18000000000000000", 1 },
+    { "0x133333333333333330000000000000000", "0x18000000000000000", 0 },
+  };
+
+  mpz_t   a, d;
+  int     i;
+
+  mpz_init (a);
+  mpz_init (d);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (d, data[i].d, 0);
+      check_one (a, d, data[i].want);
+    }
+
+  mpz_clear (a);
+  mpz_clear (d);
+}
+
+void
+check_random (int reps)
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t   a, d, r;
+  int     i;
+  int     want;
+
+  mpz_init (a);
+  mpz_init (d);
+  mpz_init (r);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_erandomb (a, rands, 1 << 19);
+      mpz_erandomb_nonzero (d, rands, 1 << 18);
+
+      mpz_fdiv_r (r, a, d);
+
+      want = (mpz_sgn (r) == 0);
+      check_one (a, d, want);
+
+      mpz_sub (a, a, r);
+      check_one (a, d, 1);
+
+      if (mpz_cmpabs_ui (d, 1L) == 0)
+        continue;
+
+      mpz_add_ui (a, a, 1L);
+      check_one (a, d, 0);
+    }
+
+  mpz_clear (a);
+  mpz_clear (d);
+  mpz_clear (r);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  int  reps = 100;
+
+  tests_start ();
+
+  TESTS_REPS (reps, argv, argc);
+
+  check_data ();
+  check_random (reps);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-divis_2exp.c b/vendor/gmp-6.3.0/tests/mpz/t-divis_2exp.c
new file mode 100644
index 0000000..636c751
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-divis_2exp.c
@@ -0,0 +1,132 @@
+/* test mpz_divisible_2exp_p */
+
+/*
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr a, unsigned long d, int want)
+{
+  int   got;
+
+  got = (mpz_divisible_2exp_p (a, d) != 0);
+  if (want != got)
+    {
+      printf ("mpz_divisible_2exp_p wrong\n");
+      printf ("   expected %d got %d\n", want, got);
+      mpz_trace ("   a", a);
+      printf    ("   d=%lu\n", d);
+      mp_trace_base = -16;
+      mpz_trace ("   a", a);
+      printf    ("   d=0x%lX\n", d);
+      abort ();
+    }
+}
+
+void
+check_data (void)
+{
+  static const struct {
+    const char    *a;
+    unsigned long d;
+    int           want;
+
+  } data[] = {
+
+    { "0", 0, 1 },
+    { "0", 1, 1 },
+    { "0", 2, 1 },
+    { "0", 3, 1 },
+
+    { "1", 0, 1 },
+    { "1", 1, 0 },
+    { "1", 2, 0 },
+    { "1", 3, 0 },
+    { "1", 10000, 0 },
+
+    { "4", 0, 1 },
+    { "4", 1, 1 },
+    { "4", 2, 1 },
+    { "4", 3, 0 },
+    { "4", 4, 0 },
+    { "4", 10000, 0 },
+
+    { "0x80000000", 31, 1 },
+    { "0x80000000", 32, 0 },
+    { "0x80000000", 64, 0 },
+
+    { "0x100000000", 32, 1 },
+    { "0x100000000", 33, 0 },
+    { "0x100000000", 64, 0 },
+
+    { "0x8000000000000000", 63, 1 },
+    { "0x8000000000000000", 64, 0 },
+    { "0x8000000000000000", 128, 0 },
+
+    { "0x10000000000000000", 64, 1 },
+    { "0x10000000000000000", 65, 0 },
+    { "0x10000000000000000", 128, 0 },
+    { "0x10000000000000000", 256, 0 },
+
+    { "0x10000000000000000100000000", 32, 1 },
+    { "0x10000000000000000100000000", 33, 0 },
+    { "0x10000000000000000100000000", 64, 0 },
+
+    { "0x1000000000000000010000000000000000", 64, 1 },
+    { "0x1000000000000000010000000000000000", 65, 0 },
+    { "0x1000000000000000010000000000000000", 128, 0 },
+    { "0x1000000000000000010000000000000000", 256, 0 },
+    { "0x1000000000000000010000000000000000", 1024, 0 },
+
+  };
+
+  mpz_t   a, d;
+  int     i;
+
+  mpz_init (a);
+  mpz_init (d);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      check_one (a, data[i].d, data[i].want);
+
+      mpz_neg (a, a);
+      check_one (a, data[i].d, data[i].want);
+    }
+
+  mpz_clear (a);
+  mpz_clear (d);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-export.c b/vendor/gmp-6.3.0/tests/mpz/t-export.c
new file mode 100644
index 0000000..fa411e3
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-export.c
@@ -0,0 +1,205 @@
+/* Test mpz_export.
+
+Copyright 2002, 2003 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *src;
+    size_t      want_count;
+    int         order;
+    size_t      size;
+    int         endian;
+    int         nail;
+    char        want_data[64];
+
+  } data[] = {
+
+    { "0", 0,1, 1,1, 0 },
+    { "0", 0,1, 2,1, 0 },
+    { "0", 0,1, 3,1, 0 },
+
+    { "0x12345678", 4,1,  1,1, 0, { '\022', '\064', '\126', '\170' } },
+    { "0x12345678", 1,1,  4,1, 0, { '\022', '\064', '\126', '\170' } },
+    { "0x12345678", 1,-1, 4,1, 0, { '\022', '\064', '\126', '\170' } },
+
+    { "0x12345678", 4,-1, 1,-1, 0, { '\170', '\126', '\064', '\022' } },
+    { "0x12345678", 1,1,  4,-1, 0, { '\170', '\126', '\064', '\022' } },
+    { "0x12345678", 1,-1, 4,-1, 0, { '\170', '\126', '\064', '\022' } },
+
+    { "0x15", 5,1,  1,1, 7, { '\001', '\000', '\001', '\000', '\001' } },
+
+    { "0x1FFFFFFFFFFF", 3,1,  2,1,   1, {
+	'\177','\377', '\177','\377', '\177','\377' } },
+    { "0x1FFFFFFFFFFF", 3,1,  2,-1,  1, {
+	'\377','\177', '\377','\177', '\377','\177' } },
+    { "0x7",            3,1,  2,1,  15, {
+	'\000','\001', '\000','\001', '\000','\001' } },
+    { "0x7",            3,1,  2,-1, 15, {
+	'\001','\000', '\001','\000', '\001','\000' } },
+
+    { "0x24", 3,1,  2,1,  14, { '\000','\002', '\000','\001', '\000','\000' }},
+    { "0x24", 3,1,  2,-1, 14, { '\002','\000', '\001','\000', '\000','\000' }},
+    { "0x24", 3,-1, 2,-1, 14, { '\000','\000', '\001','\000', '\002','\000' }},
+    { "0x24", 3,-1, 2,1,  14, { '\000','\000', '\000','\001', '\000','\002' }},
+
+    { "0x123456789ABC", 3,1,  2,1,  0, {
+	'\022','\064', '\126','\170', '\232','\274' } },
+    { "0x123456789ABC", 3,-1, 2,1,  0, {
+	'\232','\274', '\126','\170', '\022','\064' } },
+    { "0x123456789ABC", 3,1,  2,-1, 0, {
+	'\064','\022', '\170','\126', '\274','\232' } },
+    { "0x123456789ABC", 3,-1, 2,-1, 0, {
+	'\274','\232', '\170','\126', '\064','\022' } },
+
+    { "0x112233445566778899AABBCC", 3,1,  4,1,  0,
+      { '\021','\042','\063','\104',
+	'\125','\146','\167','\210',
+	'\231','\252','\273','\314' } },
+    { "0x112233445566778899AABBCC", 3,-1, 4,1,  0,
+      { '\231','\252','\273','\314',
+	'\125','\146','\167','\210',
+	'\021','\042','\063','\104' } },
+    { "0x112233445566778899AABBCC", 3,1,  4,-1, 0,
+      { '\104','\063','\042','\021',
+	'\210','\167','\146','\125',
+	'\314','\273','\252','\231' } },
+    { "0x112233445566778899AABBCC", 3,-1, 4,-1, 0,
+      { '\314','\273','\252','\231',
+	'\210','\167','\146','\125',
+	'\104','\063','\042','\021' } },
+
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,1,  8,1,  0,
+      { '\020','\001','\040','\002','\060','\003','\100','\004',
+	'\120','\005','\140','\006','\160','\007','\200','\010',
+	'\220','\011','\240','\012','\260','\013','\300','\014' } },
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,-1, 8,1,  0,
+      { '\220','\011','\240','\012','\260','\013','\300','\014',
+	'\120','\005','\140','\006','\160','\007','\200','\010',
+	'\020','\001','\040','\002','\060','\003','\100','\004' } },
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,1,  8,-1, 0,
+      { '\004','\100','\003','\060','\002','\040','\001','\020',
+	'\010','\200','\007','\160','\006','\140','\005','\120',
+	'\014','\300','\013','\260','\012','\240','\011','\220' } },
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,-1, 8,-1, 0,
+      { '\014','\300','\013','\260','\012','\240','\011','\220',
+	'\010','\200','\007','\160','\006','\140','\005','\120',
+	'\004','\100','\003','\060','\002','\040','\001','\020' } },
+
+    { "0x155555555555555555555555", 3,1,  4,1,  1,
+      { '\125','\125','\125','\125',
+	'\052','\252','\252','\252',
+	'\125','\125','\125','\125' } },
+    { "0x155555555555555555555555", 3,-1,  4,1,  1,
+      { '\125','\125','\125','\125',
+	'\052','\252','\252','\252',
+	'\125','\125','\125','\125' } },
+    { "0x155555555555555555555555", 3,1,  4,-1,  1,
+      { '\125','\125','\125','\125',
+	'\252','\252','\252','\052',
+	'\125','\125','\125','\125' } },
+    { "0x155555555555555555555555", 3,-1,  4,-1,  1,
+      { '\125','\125','\125','\125',
+	'\252','\252','\252','\052',
+	'\125','\125','\125','\125' } },
+  };
+
+  char    buf[sizeof(data[0].src) + sizeof (mp_limb_t) + 128];
+  char    *got_data;
+  void    *ret;
+  size_t  align, got_count, j;
+  int     i, error = 0;
+  mpz_t   src;
+
+  mpz_init (src);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      for (align = 0; align < sizeof (mp_limb_t); align++)
+	{
+	  mpz_set_str_or_abort (src, data[i].src, 0);
+	  MPZ_CHECK_FORMAT (src);
+	  got_data = buf + align;
+
+	  ASSERT_ALWAYS (data[i].want_count * data[i].size + align
+			 <= sizeof (buf));
+
+	  memset (got_data, '\0', data[i].want_count * data[i].size);
+	  ret = mpz_export (got_data, &got_count, data[i].order,
+			    data[i].size, data[i].endian, data[i].nail, src);
+
+	  if (ret != got_data)
+	    {
+	      printf ("return doesn't equal given pointer\n");
+	      error = 1;
+	    }
+	  if (got_count != data[i].want_count)
+	    {
+	      printf ("wrong count\n");
+	      error = 1;
+	    }
+	  if (memcmp (got_data, data[i].want_data, got_count * data[i].size) != 0)
+	    {
+	      printf ("wrong result data\n");
+	      error = 1;
+	    }
+	  if (error)
+	    {
+	      printf ("    at data[%d]  align=%d\n", i, (int) align);
+	      printf ("    src \"%s\"\n", data[i].src);
+	      mpz_trace ("    src", src);
+	      printf ("    order=%d  size=%lu endian=%d nail=%u\n",
+		      data[i].order,
+		      (unsigned long) data[i].size, data[i].endian, data[i].nail);
+	      printf ("    want count %lu\n", (unsigned long) data[i].want_count);
+	      printf ("    got count  %lu\n", (unsigned long) got_count);
+	      printf ("    want");
+	      for (j = 0; j < data[i].want_count*data[i].size; j++)
+		printf (" 0x%02X,", (unsigned) (unsigned char) data[i].want_data[j]);
+	      printf ("\n");
+	      printf ("    got ");
+	      for (j = 0; j < got_count*data[i].size; j++)
+		printf (" 0x%02X,", (unsigned) (unsigned char) got_data[j]);
+	      printf ("\n");
+	      abort ();
+	    }
+	}
+    }
+  mpz_clear (src);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  mp_trace_base = -16;
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-fac_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-fac_ui.c
new file mode 100644
index 0000000..15b6070
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-fac_ui.c
@@ -0,0 +1,108 @@
+/* Exercise mpz_fac_ui and mpz_2fac_ui.
+
+Copyright 2000-2002, 2012, 2015 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Usage: t-fac_ui [x|num]
+
+   With no arguments testing goes up to the initial value of "limit" below.
+   With a number argument tests are carried that far, or with a literal "x"
+   tests are continued without limit (this being meant only for development
+   purposes).  */
+
+
+int
+main (int argc, char *argv[])
+{
+  unsigned long  n, m;
+  unsigned long  limit = 2222;
+  mpz_t          df[2], f, r;
+
+  tests_start ();
+
+  if (argc > 1 && argv[1][0] == 'x')
+    limit = ULONG_MAX;
+  else
+    TESTS_REPS (limit, argv, argc);
+
+  /* for small limb testing */
+  limit = MIN (limit, MP_LIMB_T_MAX);
+
+  mpz_init_set_ui (df[0], 1);  /* 0!! = 1 */
+  mpz_init_set_ui (df[1], 1);  /* -1!! = 1 */
+  mpz_init_set_ui (f, 1);  /* 0! = 1 */
+  mpz_init (r);
+
+  for (n = 0, m = 0; n < limit; n++)
+    {
+      mpz_fac_ui (r, n);
+      MPZ_CHECK_FORMAT (r);
+
+      if (mpz_cmp (f, r) != 0)
+        {
+          printf ("mpz_fac_ui(%lu) wrong\n", n);
+          printf ("  got  "); mpz_out_str (stdout, 10, r); printf("\n");
+          printf ("  want "); mpz_out_str (stdout, 10, f); printf("\n");
+          abort ();
+        }
+
+      mpz_2fac_ui (r, n);
+      MPZ_CHECK_FORMAT (r);
+
+      if (mpz_cmp (df[m], r) != 0)
+        {
+          printf ("mpz_2fac_ui(%lu) wrong\n", n);
+          printf ("  got  "); mpz_out_str (stdout, 10, r); printf("\n");
+          printf ("  want "); mpz_out_str (stdout, 10, df[m]); printf("\n");
+          abort ();
+        }
+
+      m ^= 1;
+      mpz_mul_ui (df[m], df[m], n+1);  /* (n+1)!! = (n-1)!! * (n+1) */
+      mpz_mul_ui (f, f, n+1);  /* (n+1)! = n! * (n+1) */
+    }
+
+  n = 2097169; /* a prime = 1 mod 4*/
+  if (n / 2 > MP_LIMB_T_MAX)
+    n = 131041; /* a smaller prime :-) */
+  mpz_fac_ui (f, n / 2); /* ((n-1)/2)! */
+  m = mpz_fdiv_ui (f, n); /* ((n-1)/2)! mod n*/
+  mpz_set_ui (f, m);
+  mpz_mul_ui (f, f, m); /* (((n-1)/2)!)^2 */
+  m = mpz_fdiv_ui (f, n); /* (((n-1)/2)!)^2 mod n*/
+  if ( m != n - 1)
+    {
+      printf ("mpz_fac_ui(%lu) wrong\n", n / 2);
+      printf (" al-Haytham's theorem not verified: got %lu, expected %lu.\n", m, n - 1);
+      abort ();
+    }
+
+  mpz_clear (df[0]);
+  mpz_clear (df[1]);
+  mpz_clear (f);
+  mpz_clear (r);
+
+  tests_end ();
+
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-fdiv.c b/vendor/gmp-6.3.0/tests/mpz/t-fdiv.c
new file mode 100644
index 0000000..71503df
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-fdiv.c
@@ -0,0 +1,146 @@
+/* Test mpz_abs, mpz_add, mpz_cmp, mpz_cmp_ui, mpz_fdiv_qr, mpz_fdiv_q,
+   mpz_fdiv_r, mpz_mul.
+
+Copyright 1993, 1994, 1996, 2000, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (mpz_t, mpz_t);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t dividend, divisor;
+  mpz_t quotient, remainder;
+  mpz_t quotient2, remainder2;
+  mpz_t temp;
+  mp_size_t dividend_size, divisor_size;
+  int i;
+  int reps = 1000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (dividend);
+  mpz_init (divisor);
+  mpz_init (quotient);
+  mpz_init (remainder);
+  mpz_init (quotient2);
+  mpz_init (remainder2);
+  mpz_init (temp);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 2; /* 0..131071 bit operands */
+
+      do
+	{
+	  mpz_urandomb (bs, rands, size_range);
+	  divisor_size = mpz_get_ui (bs);
+	  mpz_rrandomb (divisor, rands, divisor_size);
+	}
+      while (mpz_sgn (divisor) == 0);
+
+      mpz_urandomb (bs, rands, size_range);
+      dividend_size = mpz_get_ui (bs) + divisor_size;
+      mpz_rrandomb (dividend, rands, dividend_size);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (dividend, dividend);
+      if ((bsi & 2) != 0)
+	mpz_neg (divisor, divisor);
+
+      /* printf ("%ld %ld\n", SIZ (dividend), SIZ (divisor)); */
+
+      mpz_fdiv_qr (quotient, remainder, dividend, divisor);
+      mpz_fdiv_q (quotient2, dividend, divisor);
+      mpz_fdiv_r (remainder2, dividend, divisor);
+
+      /* First determine that the quotients and remainders computed
+	 with different functions are equal.  */
+      if (mpz_cmp (quotient, quotient2) != 0)
+	dump_abort (dividend, divisor);
+      if (mpz_cmp (remainder, remainder2) != 0)
+	dump_abort (dividend, divisor);
+
+      /* Check if the sign of the quotient is correct.  */
+      if (mpz_cmp_ui (quotient, 0) != 0)
+	if ((mpz_cmp_ui (quotient, 0) < 0)
+	    != ((mpz_cmp_ui (dividend, 0) ^ mpz_cmp_ui (divisor, 0)) < 0))
+	dump_abort (dividend, divisor);
+
+      /* Check if the remainder has the same sign as the divisor
+	 (quotient rounded towards minus infinity).  */
+      if (mpz_cmp_ui (remainder, 0) != 0)
+	if ((mpz_cmp_ui (remainder, 0) < 0) != (mpz_cmp_ui (divisor, 0) < 0))
+	  dump_abort (dividend, divisor);
+
+      mpz_mul (temp, quotient, divisor);
+      mpz_add (temp, temp, remainder);
+      if (mpz_cmp (temp, dividend) != 0)
+	dump_abort (dividend, divisor);
+
+      mpz_abs (temp, divisor);
+      mpz_abs (remainder, remainder);
+      if (mpz_cmp (remainder, temp) >= 0)
+	dump_abort (dividend, divisor);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (dividend);
+  mpz_clear (divisor);
+  mpz_clear (quotient);
+  mpz_clear (remainder);
+  mpz_clear (quotient2);
+  mpz_clear (remainder2);
+  mpz_clear (temp);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (mpz_t dividend, mpz_t divisor)
+{
+  fprintf (stderr, "ERROR\n");
+  fprintf (stderr, "dividend = "); debug_mp (dividend, -16);
+  fprintf (stderr, "divisor  = "); debug_mp (divisor, -16);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-fdiv_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-fdiv_ui.c
new file mode 100644
index 0000000..87620ca
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-fdiv_ui.c
@@ -0,0 +1,158 @@
+/* Test mpz_abs, mpz_add, mpz_cmp, mpz_cmp_ui, mpz_fdiv_qr_ui, mpz_fdiv_q_ui,
+   mpz_fdiv_r_ui, mpz_fdiv_ui, mpz_mul_ui.
+
+Copyright 1993, 1994, 1996, 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (const char *, mpz_t, unsigned long);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t dividend;
+  mpz_t quotient, remainder;
+  mpz_t quotient2, remainder2;
+  mpz_t temp;
+  mp_size_t dividend_size;
+  unsigned long divisor;
+  int i;
+  int reps = 10000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  unsigned long r_rq, r_q, r_r, r;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (dividend);
+  mpz_init (quotient);
+  mpz_init (remainder);
+  mpz_init (quotient2);
+  mpz_init (remainder2);
+  mpz_init (temp);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + 2; /* 0..2047 bit operands */
+
+      do
+	{
+	  mpz_rrandomb (bs, rands, 64);
+	  divisor = mpz_get_ui (bs);
+	}
+      while (divisor == 0);
+
+      mpz_urandomb (bs, rands, size_range);
+      dividend_size = mpz_get_ui (bs);
+      mpz_rrandomb (dividend, rands, dividend_size);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (dividend, dividend);
+
+      /* printf ("%ld\n", SIZ (dividend)); */
+
+      r_rq = mpz_fdiv_qr_ui (quotient, remainder, dividend, divisor);
+      r_q = mpz_fdiv_q_ui (quotient2, dividend, divisor);
+      r_r = mpz_fdiv_r_ui (remainder2, dividend, divisor);
+      r = mpz_fdiv_ui (dividend, divisor);
+
+      /* First determine that the quotients and remainders computed
+	 with different functions are equal.  */
+      if (mpz_cmp (quotient, quotient2) != 0)
+	dump_abort ("quotients from mpz_fdiv_qr_ui and mpz_fdiv_q_ui differ",
+		    dividend, divisor);
+      if (mpz_cmp (remainder, remainder2) != 0)
+	dump_abort ("remainders from mpz_fdiv_qr_ui and mpz_fdiv_r_ui differ",
+		    dividend, divisor);
+
+      /* Check if the sign of the quotient is correct.  */
+      if (mpz_cmp_ui (quotient, 0) != 0)
+	if ((mpz_cmp_ui (quotient, 0) < 0)
+	    != (mpz_cmp_ui (dividend, 0) < 0))
+	dump_abort ("quotient sign wrong", dividend, divisor);
+
+      /* Check if the remainder has the same sign as the (positive) divisor
+	 (quotient rounded towards minus infinity).  */
+      if (mpz_cmp_ui (remainder, 0) != 0)
+	if (mpz_cmp_ui (remainder, 0) < 0)
+	  dump_abort ("remainder sign wrong", dividend, divisor);
+
+      mpz_mul_ui (temp, quotient, divisor);
+      mpz_add (temp, temp, remainder);
+      if (mpz_cmp (temp, dividend) != 0)
+	dump_abort ("n mod d != n - [n/d]*d", dividend, divisor);
+
+      mpz_abs (remainder, remainder);
+      if (mpz_cmp_ui (remainder, divisor) >= 0)
+	dump_abort ("remainder greater than divisor", dividend, divisor);
+
+      if (mpz_cmp_ui (remainder, r_rq) != 0)
+	dump_abort ("remainder returned from mpz_fdiv_qr_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r_q) != 0)
+	dump_abort ("remainder returned from mpz_fdiv_q_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r_r) != 0)
+	dump_abort ("remainder returned from mpz_fdiv_r_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r) != 0)
+	dump_abort ("remainder returned from mpz_fdiv_ui is wrong",
+		    dividend, divisor);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (dividend);
+  mpz_clear (quotient);
+  mpz_clear (remainder);
+  mpz_clear (quotient2);
+  mpz_clear (remainder2);
+  mpz_clear (temp);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (const char *str, mpz_t dividend, unsigned long divisor)
+{
+  fprintf (stderr, "ERROR: %s\n", str);
+  fprintf (stderr, "dividend = "); debug_mp (dividend, -16);
+  fprintf (stderr, "divisor  = %lX\n", divisor);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-fib_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-fib_ui.c
new file mode 100644
index 0000000..ec9425c
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-fib_ui.c
@@ -0,0 +1,155 @@
+/* Test mpz_fib_ui and mpz_fib2_ui.
+
+Copyright 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Usage: t-fib_ui [x|num]
+
+   Run with no arguments, tests goes up to the initial value of "limit"
+   below.  With a number argument tests are carried up that far, or with a
+   literal "x" tests are continued without limit (this being only meant for
+   development purposes).
+
+   The size tests performed are designed to partially replicate what will be
+   going on in mpz_fib_ui.  There's plenty of ASSERTs there, but of course
+   they're not normally enabled.
+
+   Misfeatures:
+
+   The tests on MPN_FIB2_SIZE are a bit useless, since that macro includes a
+   +2 for the internal purposes of mpn_fib2_ui.  It's probably better to
+   give mpn_fib2_ui a run with assertion checking enabled.  */
+
+
+#define MPZ_FIB_SIZE_FLOAT(n) \
+  ((mp_size_t) ((n) * 0.6942419 / GMP_NUMB_BITS + 1))
+
+
+void
+check_fib_table (void)
+{
+  int        i;
+  mp_limb_t  want;
+
+  ASSERT_ALWAYS (FIB_TABLE(-1) == 1);
+  ASSERT_ALWAYS (FIB_TABLE(0) == 0);
+
+  for (i = 1; i <= FIB_TABLE_LIMIT; i++)
+    {
+      want = FIB_TABLE(i-1) + FIB_TABLE(i-2);
+      if (FIB_TABLE(i) != want)
+        {
+          printf ("FIB_TABLE(%d) wrong\n", i);
+          gmp_printf ("  got  %#Nx\n", &FIB_TABLE(i), 1);
+          gmp_printf ("  want %#Nx\n", &want, 1);
+          abort ();
+        }
+    }
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  unsigned long  n;
+  unsigned long  limit = 100 * GMP_LIMB_BITS;
+  mpz_t          want_fn, want_fn1, got_fn, got_fn1;
+
+  tests_start ();
+  mp_trace_base = -16;
+  if (argc > 1 && argv[1][0] == 'x')
+    limit = ULONG_MAX;
+  else
+    TESTS_REPS (limit, argv, argc);
+
+  check_fib_table ();
+
+  /* start at n==0 */
+  mpz_init_set_ui (want_fn1, 1);  /* F[-1] */
+  mpz_init_set_ui (want_fn,  0);  /* F[0]   */
+  mpz_init (got_fn);
+  mpz_init (got_fn1);
+
+  for (n = 0; n < limit; n++)
+    {
+      /* check our float formula seems right */
+      if (MPZ_FIB_SIZE_FLOAT (n) < SIZ(want_fn))
+        {
+          printf ("MPZ_FIB_SIZE_FLOAT wrong at n=%lu\n", n);
+          printf ("  MPZ_FIB_SIZE_FLOAT  %ld\n", MPZ_FIB_SIZE_FLOAT (n));
+          printf ("  SIZ(want_fn)        %d\n", SIZ(want_fn));
+          abort ();
+        }
+
+      /* check MPN_FIB2_SIZE seems right, compared to actual size and
+         compared to our float formula */
+      if (MPN_FIB2_SIZE (n) < MPZ_FIB_SIZE_FLOAT (n))
+        {
+          printf ("MPN_FIB2_SIZE wrong at n=%lu\n", n);
+          printf ("  MPN_FIB2_SIZE       %ld\n", MPN_FIB2_SIZE (n));
+          printf ("  MPZ_FIB_SIZE_FLOAT  %ld\n", MPZ_FIB_SIZE_FLOAT (n));
+          abort ();
+        }
+      if (MPN_FIB2_SIZE (n) < SIZ(want_fn))
+        {
+          printf ("MPN_FIB2_SIZE wrong at n=%lu\n", n);
+          printf ("  MPN_FIB2_SIZE  %ld\n", MPN_FIB2_SIZE (n));
+          printf ("  SIZ(want_fn)   %d\n", SIZ(want_fn));
+          abort ();
+        }
+
+      mpz_fib2_ui (got_fn, got_fn1, n);
+      MPZ_CHECK_FORMAT (got_fn);
+      MPZ_CHECK_FORMAT (got_fn1);
+      if (mpz_cmp (got_fn, want_fn) != 0 || mpz_cmp (got_fn1, want_fn1) != 0)
+        {
+          printf ("mpz_fib2_ui(%lu) wrong\n", n);
+          mpz_trace ("want fn ", want_fn);
+          mpz_trace ("got  fn ",  got_fn);
+          mpz_trace ("want fn1", want_fn1);
+          mpz_trace ("got  fn1",  got_fn1);
+          abort ();
+        }
+
+      mpz_fib_ui (got_fn, n);
+      MPZ_CHECK_FORMAT (got_fn);
+      if (mpz_cmp (got_fn, want_fn) != 0)
+        {
+          printf ("mpz_fib_ui(%lu) wrong\n", n);
+          mpz_trace ("want fn", want_fn);
+          mpz_trace ("got  fn", got_fn);
+          abort ();
+        }
+
+      mpz_add (want_fn1, want_fn1, want_fn);  /* F[n+1] = F[n] + F[n-1] */
+      mpz_swap (want_fn1, want_fn);
+    }
+
+  mpz_clear (want_fn);
+  mpz_clear (want_fn1);
+  mpz_clear (got_fn);
+  mpz_clear (got_fn1);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-fits.c b/vendor/gmp-6.3.0/tests/mpz/t-fits.c
new file mode 100644
index 0000000..6819588
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-fits.c
@@ -0,0 +1,197 @@
+/* Test mpz_fits_*_p */
+
+/*
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Nothing sophisticated here, just exercise mpz_fits_*_p on a small amount
+   of data. */
+
+#define EXPECT_S(fun,name,answer)                                       \
+  got = fun (z);                                                        \
+  if (got != answer)                                                    \
+    {                                                                   \
+      printf ("%s (%s) got %d want %d\n", name, expr, got, answer);     \
+      printf (" z size %d\n", SIZ(z));                                  \
+      printf (" z dec "); mpz_out_str (stdout, 10, z); printf ("\n");   \
+      printf (" z hex "); mpz_out_str (stdout, 16, z); printf ("\n");   \
+      error = 1;                                                        \
+    }
+
+#define EXPECT(fun,answer)  EXPECT_S(fun,#fun,answer)
+
+int
+main (void)
+{
+  mpz_t       z;
+  int         got;
+  const char  *expr;
+  int         error = 0;
+
+  tests_start ();
+  mpz_init (z);
+
+  mpz_set_ui (z, 0L);
+  expr = "0";
+  EXPECT (mpz_fits_ulong_p, 1);
+  EXPECT (mpz_fits_uint_p, 1);
+  EXPECT (mpz_fits_ushort_p, 1);
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+  EXPECT (mpz_fits_sshort_p, 1);
+
+  mpz_set_ui (z, 1L);
+  expr = "1";
+  EXPECT (mpz_fits_ulong_p, 1);
+  EXPECT (mpz_fits_uint_p, 1);
+  EXPECT (mpz_fits_ushort_p, 1);
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+  EXPECT (mpz_fits_sshort_p, 1);
+
+  mpz_set_si (z, -1L);
+  expr = "-1";
+  EXPECT (mpz_fits_ulong_p, 0);
+  EXPECT (mpz_fits_uint_p, 0);
+  EXPECT (mpz_fits_ushort_p, 0);
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+  EXPECT (mpz_fits_sshort_p, 1);
+
+  mpz_set_ui (z, 1L);
+  mpz_mul_2exp (z, z, 5L*GMP_LIMB_BITS);
+  expr = "2^(5*BPML)";
+  EXPECT (mpz_fits_ulong_p, 0);
+  EXPECT (mpz_fits_uint_p, 0);
+  EXPECT (mpz_fits_ushort_p, 0);
+  EXPECT (mpz_fits_slong_p, 0);
+  EXPECT (mpz_fits_sint_p, 0);
+  EXPECT (mpz_fits_sshort_p, 0);
+
+
+  mpz_set_ui (z, (unsigned long) USHRT_MAX);
+  expr = "USHRT_MAX";
+  EXPECT (mpz_fits_ulong_p, 1);
+  EXPECT (mpz_fits_uint_p, 1);
+  EXPECT (mpz_fits_ushort_p, 1);
+
+  mpz_set_ui (z, (unsigned long) USHRT_MAX);
+  mpz_add_ui (z, z, 1L);
+  expr = "USHRT_MAX + 1";
+  EXPECT (mpz_fits_ushort_p, 0);
+
+
+  mpz_set_ui (z, (unsigned long) UINT_MAX);
+  expr = "UINT_MAX";
+  EXPECT (mpz_fits_ulong_p, 1);
+  EXPECT (mpz_fits_uint_p, 1);
+
+  mpz_set_ui (z, (unsigned long) UINT_MAX);
+  mpz_add_ui (z, z, 1L);
+  expr = "UINT_MAX + 1";
+  EXPECT (mpz_fits_uint_p, 0);
+
+
+  mpz_set_ui (z, ULONG_MAX);
+  expr = "ULONG_MAX";
+  EXPECT (mpz_fits_ulong_p, 1);
+
+  mpz_set_ui (z, ULONG_MAX);
+  mpz_add_ui (z, z, 1L);
+  expr = "ULONG_MAX + 1";
+  EXPECT (mpz_fits_ulong_p, 0);
+
+
+  mpz_set_si (z, (long) SHRT_MAX);
+  expr = "SHRT_MAX";
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+  EXPECT (mpz_fits_sshort_p, 1);
+
+  mpz_set_si (z, (long) SHRT_MAX);
+  mpz_add_ui (z, z, 1L);
+  expr = "SHRT_MAX + 1";
+  EXPECT (mpz_fits_sshort_p, 0);
+
+
+  mpz_set_si (z, (long) INT_MAX);
+  expr = "INT_MAX";
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+
+  mpz_set_si (z, (long) INT_MAX);
+  mpz_add_ui (z, z, 1L);
+  expr = "INT_MAX + 1";
+  EXPECT (mpz_fits_sint_p, 0);
+
+
+  mpz_set_si (z, LONG_MAX);
+  expr = "LONG_MAX";
+  EXPECT (mpz_fits_slong_p, 1);
+
+  mpz_set_si (z, LONG_MAX);
+  mpz_add_ui (z, z, 1L);
+  expr = "LONG_MAX + 1";
+  EXPECT (mpz_fits_slong_p, 0);
+
+
+  mpz_set_si (z, (long) SHRT_MIN);
+  expr = "SHRT_MIN";
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+  EXPECT (mpz_fits_sshort_p, 1);
+
+  mpz_set_si (z, (long) SHRT_MIN);
+  mpz_sub_ui (z, z, 1L);
+  expr = "SHRT_MIN + 1";
+  EXPECT (mpz_fits_sshort_p, 0);
+
+
+  mpz_set_si (z, (long) INT_MIN);
+  expr = "INT_MIN";
+  EXPECT (mpz_fits_slong_p, 1);
+  EXPECT (mpz_fits_sint_p, 1);
+
+  mpz_set_si (z, (long) INT_MIN);
+  mpz_sub_ui (z, z, 1L);
+  expr = "INT_MIN + 1";
+  EXPECT (mpz_fits_sint_p, 0);
+
+
+  mpz_set_si (z, LONG_MIN);
+  expr = "LONG_MIN";
+  EXPECT (mpz_fits_slong_p, 1);
+
+  mpz_set_si (z, LONG_MIN);
+  mpz_sub_ui (z, z, 1L);
+  expr = "LONG_MIN + 1";
+  EXPECT (mpz_fits_slong_p, 0);
+
+
+  if (error)
+    abort ();
+
+  mpz_clear (z);
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-gcd.c b/vendor/gmp-6.3.0/tests/mpz/t-gcd.c
new file mode 100644
index 0000000..46b278a
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-gcd.c
@@ -0,0 +1,467 @@
+/* Test mpz_gcd, mpz_gcdext, and mpz_gcd_ui.
+
+Copyright 1991, 1993, 1994, 1996, 1997, 2000-2005, 2008, 2009, 2012 Free
+Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void one_test (mpz_t, mpz_t, mpz_t, int);
+void debug_mp (mpz_t, int);
+
+static int gcdext_valid_p (const mpz_t, const mpz_t, const mpz_t, const mpz_t);
+
+/* Keep one_test's variables global, so that we don't need
+   to reinitialize them for each test.  */
+mpz_t gcd1, gcd2, s, temp1, temp2, temp3;
+
+#define MAX_SCHOENHAGE_THRESHOLD HGCD_REDUCE_THRESHOLD
+
+/* Define this to make all operands be large enough for Schoenhage gcd
+   to be used.  */
+#ifndef WHACK_SCHOENHAGE
+#define WHACK_SCHOENHAGE 0
+#endif
+
+#if WHACK_SCHOENHAGE
+#define MIN_OPERAND_BITSIZE (MAX_SCHOENHAGE_THRESHOLD * GMP_NUMB_BITS)
+#else
+#define MIN_OPERAND_BITSIZE 1
+#endif
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char *a;
+    const char *b;
+    const char *want;
+  } data[] = {
+    /* This tickled a bug in gmp 4.1.2 mpn/x86/k6/gcd_finda.asm. */
+    { "0x3FFC000007FFFFFFFFFF00000000003F83FFFFFFFFFFFFFFF80000000000000001",
+      "0x1FFE0007FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC000000000000000000000001",
+      "5" }
+  };
+
+  mpz_t  a, b, got, want;
+  int    i;
+
+  mpz_inits (a, b, got, want, NULL);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (b, data[i].b, 0);
+      mpz_set_str_or_abort (want, data[i].want, 0);
+      mpz_gcd (got, a, b);
+      MPZ_CHECK_FORMAT (got);
+      if (mpz_cmp (got, want) != 0)
+	{
+	  printf    ("mpz_gcd wrong on data[%d]\n", i);
+	  printf    (" a  %s\n", data[i].a);
+	  printf    (" b  %s\n", data[i].b);
+	  mpz_trace (" a", a);
+	  mpz_trace (" b", b);
+	  mpz_trace (" want", want);
+	  mpz_trace (" got ", got);
+	  abort ();
+	}
+    }
+
+  mpz_clears (a, b, got, want, NULL);
+}
+
+void
+make_chain_operands (mpz_t ref, mpz_t a, mpz_t b, gmp_randstate_t rs, int nb1, int nb2, int chain_len)
+{
+  mpz_t bs, temp1, temp2;
+  int j;
+
+  mpz_inits (bs, temp1, temp2, NULL);
+
+  /* Generate a division chain backwards, allowing otherwise unlikely huge
+     quotients.  */
+
+  mpz_set_ui (a, 0);
+  mpz_urandomb (bs, rs, 32);
+  mpz_urandomb (bs, rs, mpz_get_ui (bs) % nb1 + 1);
+  mpz_rrandomb (b, rs, mpz_get_ui (bs));
+  mpz_add_ui (b, b, 1);
+  mpz_set (ref, b);
+
+  for (j = 0; j < chain_len; j++)
+    {
+      mpz_urandomb (bs, rs, 32);
+      mpz_urandomb (bs, rs, mpz_get_ui (bs) % nb2 + 1);
+      mpz_rrandomb (temp2, rs, mpz_get_ui (bs) + 1);
+      mpz_add_ui (temp2, temp2, 1);
+      mpz_mul (temp1, b, temp2);
+      mpz_add (a, a, temp1);
+
+      mpz_urandomb (bs, rs, 32);
+      mpz_urandomb (bs, rs, mpz_get_ui (bs) % nb2 + 1);
+      mpz_rrandomb (temp2, rs, mpz_get_ui (bs) + 1);
+      mpz_add_ui (temp2, temp2, 1);
+      mpz_mul (temp1, a, temp2);
+      mpz_add (b, b, temp1);
+    }
+
+  mpz_clears (bs, temp1, temp2, NULL);
+}
+
+/* Test operands from a table of seed data.  This variant creates the operands
+   using plain ol' mpz_rrandomb.  This is a hack for better coverage of the gcd
+   code, which depends on that the random number generators give the exact
+   numbers we expect.  */
+void
+check_kolmo1 (void)
+{
+  static const struct {
+    unsigned int seed;
+    int nb;
+    const char *want;
+  } data[] = {
+    { 59618, 38208, "5"},
+    { 76521, 49024, "3"},
+    { 85869, 54976, "1"},
+    { 99449, 63680, "1"},
+    {112453, 72000, "1"}
+  };
+
+  gmp_randstate_t rs;
+  mpz_t  bs, a, b, want;
+  int    i, unb, vnb, nb;
+
+  gmp_randinit_default (rs);
+
+  mpz_inits (bs, a, b, want, NULL);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      nb = data[i].nb;
+
+      gmp_randseed_ui (rs, data[i].seed);
+
+      mpz_urandomb (bs, rs, 32);
+      unb = mpz_get_ui (bs) % nb;
+      mpz_urandomb (bs, rs, 32);
+      vnb = mpz_get_ui (bs) % nb;
+
+      mpz_rrandomb (a, rs, unb);
+      mpz_rrandomb (b, rs, vnb);
+
+      mpz_set_str_or_abort (want, data[i].want, 0);
+
+      one_test (a, b, want, -1);
+    }
+
+  mpz_clears (bs, a, b, want, NULL);
+  gmp_randclear (rs);
+}
+
+/* Test operands from a table of seed data.  This variant creates the operands
+   using a division chain.  This is a hack for better coverage of the gcd
+   code, which depends on that the random number generators give the exact
+   numbers we expect.  */
+void
+check_kolmo2 (void)
+{
+  static const struct {
+    unsigned int seed;
+    int nb, chain_len;
+  } data[] = {
+    {  917, 15, 5 },
+    { 1032, 18, 6 },
+    { 1167, 18, 6 },
+    { 1174, 18, 6 },
+    { 1192, 18, 6 },
+  };
+
+  gmp_randstate_t rs;
+  mpz_t  bs, a, b, want;
+  int    i;
+
+  gmp_randinit_default (rs);
+
+  mpz_inits (bs, a, b, want, NULL);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      gmp_randseed_ui (rs, data[i].seed);
+      make_chain_operands (want, a, b, rs, data[i].nb, data[i].nb, data[i].chain_len);
+      one_test (a, b, want, -1);
+    }
+
+  mpz_clears (bs, a, b, want, NULL);
+  gmp_randclear (rs);
+}
+
+int
+main (int argc, char **argv)
+{
+  mpz_t op1, op2, ref;
+  int i, chain_len;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  long int reps = 200;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_inits (bs, op1, op2, ref, gcd1, gcd2, temp1, temp2, temp3, s, NULL);
+
+  check_data ();
+  check_kolmo1 ();
+  check_kolmo2 ();
+
+  /* Testcase to exercise the u0 == u1 case in mpn_gcdext_lehmer_n. */
+  /* mpz_set_ui (op2, GMP_NUMB_MAX); */ /* FIXME: Huge limb doesn't always fit */
+  mpz_set_ui (op2, 0);
+  mpz_setbit (op2, GMP_NUMB_BITS);
+  mpz_sub_ui (op2, op2, 1);
+  mpz_mul_2exp (op1, op2, 100);
+  mpz_add (op1, op1, op2);
+  mpz_mul_ui (op2, op2, 2);
+  one_test (op1, op2, NULL, -1);
+
+  for (i = 0; i < reps; i++)
+    {
+      /* Generate plain operands with unknown gcd.  These types of operands
+	 have proven to trigger certain bugs in development versions of the
+	 gcd code.  The "hgcd->row[3].rsize > M" ASSERT is not triggered by
+	 the division chain code below, but that is most likely just a result
+	 of that other ASSERTs are triggered before it.  */
+
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 17 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (op1, rands, mpz_get_ui (bs) + MIN_OPERAND_BITSIZE);
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (op2, rands, mpz_get_ui (bs) + MIN_OPERAND_BITSIZE);
+
+      mpz_urandomb (bs, rands, 8);
+      bsi = mpz_get_ui (bs);
+
+      if ((bsi & 0x3c) == 4)
+	mpz_mul (op1, op1, op2);	/* make op1 a multiple of op2 */
+      else if ((bsi & 0x3c) == 8)
+	mpz_mul (op2, op1, op2);	/* make op2 a multiple of op1 */
+
+      if ((bsi & 1) != 0)
+	mpz_neg (op1, op1);
+      if ((bsi & 2) != 0)
+	mpz_neg (op2, op2);
+
+      one_test (op1, op2, NULL, i);
+
+      /* Generate a division chain backwards, allowing otherwise unlikely huge
+	 quotients.  */
+
+      mpz_urandomb (bs, rands, 32);
+      chain_len = mpz_get_ui (bs) % LOG2C (GMP_NUMB_BITS * MAX_SCHOENHAGE_THRESHOLD);
+      mpz_urandomb (bs, rands, 32);
+      chain_len = mpz_get_ui (bs) % (1 << chain_len) / 32;
+
+      make_chain_operands (ref, op1, op2, rands, 16, 12, chain_len);
+
+      one_test (op1, op2, ref, i);
+    }
+
+  /* Check that we can use NULL as first argument of mpz_gcdext.  */
+  mpz_set_si (op1, -10);
+  mpz_set_si (op2, 0);
+  mpz_gcdext (NULL, temp1, temp2, op1, op2);
+  ASSERT_ALWAYS (mpz_cmp_si (temp1, -1) == 0);
+  ASSERT_ALWAYS (mpz_cmp_si (temp2, 0) == 0);
+  mpz_set_si (op2, 6);
+  mpz_gcdext (NULL, temp1, temp2, op1, op2);
+  ASSERT_ALWAYS (mpz_cmp_si (temp1, 1) == 0);
+  ASSERT_ALWAYS (mpz_cmp_si (temp2, 2) == 0);
+
+  mpz_clears (bs, op1, op2, ref, gcd1, gcd2, temp1, temp2, temp3, s, NULL);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
+
+void
+one_test (mpz_t op1, mpz_t op2, mpz_t ref, int i)
+{
+  /*
+  printf ("%d %d %d\n", SIZ (op1), SIZ (op2), ref != NULL ? SIZ (ref) : 0);
+  fflush (stdout);
+  */
+
+  /*
+  fprintf (stderr, "op1=");  debug_mp (op1, -16);
+  fprintf (stderr, "op2=");  debug_mp (op2, -16);
+  */
+
+  mpz_gcdext (gcd1, s, NULL, op1, op2);
+  MPZ_CHECK_FORMAT (gcd1);
+  MPZ_CHECK_FORMAT (s);
+
+  if (ref && mpz_cmp (ref, gcd1) != 0)
+    {
+      fprintf (stderr, "ERROR in test %d\n", i);
+      fprintf (stderr, "mpz_gcdext returned incorrect result\n");
+      fprintf (stderr, "op1=");                 debug_mp (op1, -16);
+      fprintf (stderr, "op2=");                 debug_mp (op2, -16);
+      fprintf (stderr, "expected result:\n");   debug_mp (ref, -16);
+      fprintf (stderr, "mpz_gcdext returns:\n");debug_mp (gcd1, -16);
+      abort ();
+    }
+
+  if (!gcdext_valid_p(op1, op2, gcd1, s))
+    {
+      fprintf (stderr, "ERROR in test %d\n", i);
+      fprintf (stderr, "mpz_gcdext returned invalid result\n");
+      fprintf (stderr, "op1=");                 debug_mp (op1, -16);
+      fprintf (stderr, "op2=");                 debug_mp (op2, -16);
+      fprintf (stderr, "mpz_gcdext returns:\n");debug_mp (gcd1, -16);
+      fprintf (stderr, "s=");                   debug_mp (s, -16);
+      abort ();
+    }
+
+  mpz_gcd (gcd2, op1, op2);
+  MPZ_CHECK_FORMAT (gcd2);
+
+  if (mpz_cmp (gcd2, gcd1) != 0)
+    {
+      fprintf (stderr, "ERROR in test %d\n", i);
+      fprintf (stderr, "mpz_gcd returned incorrect result\n");
+      fprintf (stderr, "op1=");                 debug_mp (op1, -16);
+      fprintf (stderr, "op2=");                 debug_mp (op2, -16);
+      fprintf (stderr, "expected result:\n");   debug_mp (gcd1, -16);
+      fprintf (stderr, "mpz_gcd returns:\n");   debug_mp (gcd2, -16);
+      abort ();
+    }
+
+  /* This should probably move to t-gcd_ui.c */
+  if (mpz_fits_ulong_p (op1) || mpz_fits_ulong_p (op2))
+    {
+      if (mpz_fits_ulong_p (op1))
+	mpz_gcd_ui (gcd2, op2, mpz_get_ui (op1));
+      else
+	mpz_gcd_ui (gcd2, op1, mpz_get_ui (op2));
+      if (mpz_cmp (gcd2, gcd1))
+	{
+	  fprintf (stderr, "ERROR in test %d\n", i);
+	  fprintf (stderr, "mpz_gcd_ui returned incorrect result\n");
+	  fprintf (stderr, "op1=");                 debug_mp (op1, -16);
+	  fprintf (stderr, "op2=");                 debug_mp (op2, -16);
+	  fprintf (stderr, "expected result:\n");   debug_mp (gcd1, -16);
+	  fprintf (stderr, "mpz_gcd_ui returns:\n");   debug_mp (gcd2, -16);
+	  abort ();
+	}
+    }
+
+  mpz_gcdext (gcd2, temp1, temp2, op1, op2);
+  MPZ_CHECK_FORMAT (gcd2);
+  MPZ_CHECK_FORMAT (temp1);
+  MPZ_CHECK_FORMAT (temp2);
+
+  mpz_mul (temp1, temp1, op1);
+  mpz_mul (temp2, temp2, op2);
+  mpz_add (temp1, temp1, temp2);
+
+  if (mpz_cmp (gcd1, gcd2) != 0
+      || mpz_cmp (gcd2, temp1) != 0)
+    {
+      fprintf (stderr, "ERROR in test %d\n", i);
+      fprintf (stderr, "mpz_gcdext returned incorrect result\n");
+      fprintf (stderr, "op1=");                 debug_mp (op1, -16);
+      fprintf (stderr, "op2=");                 debug_mp (op2, -16);
+      fprintf (stderr, "expected result:\n");   debug_mp (gcd1, -16);
+      fprintf (stderr, "mpz_gcdext returns:\n");debug_mp (gcd2, -16);
+      abort ();
+    }
+}
+
+/* Called when g is supposed to be gcd(a,b), and g = s a + t b, for some t.
+   Uses temp1, temp2 and temp3. */
+static int
+gcdext_valid_p (const mpz_t a, const mpz_t b, const mpz_t g, const mpz_t s)
+{
+  /* It's not clear that gcd(0,0) is well defined, but we allow it and require that
+     gcd(0,0) = 0. */
+  if (mpz_sgn (g) < 0)
+    return 0;
+
+  if (mpz_sgn (a) == 0)
+    {
+      /* Must have g == abs (b). Any value for s is in some sense "correct",
+	 but it makes sense to require that s == 0. */
+      return mpz_cmpabs (g, b) == 0 && mpz_sgn (s) == 0;
+    }
+  else if (mpz_sgn (b) == 0)
+    {
+      /* Must have g == abs (a), s == sign (a) */
+      return mpz_cmpabs (g, a) == 0 && mpz_cmp_si (s, mpz_sgn (a)) == 0;
+    }
+
+  if (mpz_sgn (g) <= 0)
+    return 0;
+
+  mpz_tdiv_qr (temp1, temp3, a, g);
+  if (mpz_sgn (temp3) != 0)
+    return 0;
+
+  mpz_tdiv_qr (temp2, temp3, b, g);
+  if (mpz_sgn (temp3) != 0)
+    return 0;
+
+  /* Require that 2 |s| < |b/g|, or |s| == 1. */
+  if (mpz_cmpabs_ui (s, 1) > 0)
+    {
+      mpz_mul_2exp (temp3, s, 1);
+      if (mpz_cmpabs (temp3, temp2) >= 0)
+	return 0;
+    }
+
+  /* Compute the other cofactor. */
+  mpz_mul(temp2, s, a);
+  mpz_sub(temp2, g, temp2);
+  mpz_tdiv_qr(temp2, temp3, temp2, b);
+
+  if (mpz_sgn (temp3) != 0)
+    return 0;
+
+  /* Require that 2 |t| < |a/g| or |t| == 1*/
+  if (mpz_cmpabs_ui (temp2, 1) > 0)
+    {
+      mpz_mul_2exp (temp2, temp2, 1);
+      if (mpz_cmpabs (temp2, temp1) >= 0)
+	return 0;
+    }
+  return 1;
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-gcd_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-gcd_ui.c
new file mode 100644
index 0000000..3f56a97
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-gcd_ui.c
@@ -0,0 +1,156 @@
+/* Test mpz_gcd_ui.
+
+Copyright 2003 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+/* Check mpz_gcd_ui doesn't try to return a value out of range.
+   This was wrong in gmp 4.1.2 with a long long limb.  */
+static void
+check_ui_range (void)
+{
+  unsigned long  got;
+  mpz_t  x;
+  int  i;
+
+  mpz_init_set_ui (x, ULONG_MAX);
+
+  for (i = 0; i < 20; i++)
+    {
+      mpz_mul_2exp (x, x, 1L);
+      got = mpz_gcd_ui (NULL, x, 0L);
+      if (got != 0)
+        {
+          printf ("mpz_gcd_ui (ULONG_MAX*2^%d, 0)\n", i);
+          printf ("   return %#lx\n", got);
+          printf ("   should be 0\n");
+          abort ();
+        }
+    }
+
+  mpz_clear (x);
+}
+
+static void
+check_ui_factors (void)
+{
+#define NUM_FACTORS 9
+  static const char* factors[NUM_FACTORS] = {
+    "641", "274177", "3", "5", "17", "257", "65537",
+    "59649589127497217", "1238926361552897" };
+  unsigned long  got;
+  mpz_t  x, b, d, f, g;
+  int  i, j;
+  gmp_randstate_ptr rands;
+
+  if (GMP_NUMB_BITS < 5 || GMP_NUMB_BITS == 8
+      || GMP_NUMB_BITS == 16 || GMP_NUMB_BITS > 511)
+    {
+      printf ("No usable factors for 2^%i+1.\n", GMP_NUMB_BITS);
+      return;
+    }
+
+  mpz_init (x);
+  mpz_init (d);
+  mpz_init (f);
+  mpz_init (g);
+
+  mpz_setbit (x, GMP_NUMB_BITS);
+  mpz_add_ui (x, x, 1);
+
+  for (i = 0; i < NUM_FACTORS; ++i)
+    {
+      mpz_set_str (f, factors[i], 10);
+      if (mpz_divisible_p (x, f))
+	{
+	  mpz_mul_2exp (f, f, 1);
+	  /* d is an odd multiple of the factor f, exactly filling a limb. */
+	  mpz_sub (d, x, f);
+	  /* f = 2^GMP_NUMB_BITS mod d. */
+	  mpz_sub_ui (f, f, 1);
+	  break;
+	}
+    }
+
+  mpz_gcd (g, f, d);
+  if (mpz_even_p (d) || mpz_cmp (d, f) <= 0 || mpz_cmp_ui (g, 1) != 0)
+    {
+      printf ("No usable factor found.\n");
+      abort ();
+    }
+
+  rands = RANDS;
+  mpz_mul_ui (x, d, gmp_urandomm_ui (rands, 30000) + 1);
+
+  mpz_init (b);
+  mpz_setbit (b, GMP_NUMB_BITS - 1);
+  for (j = 0; j < 4; ++j)
+    {
+      mpz_add (x, x, b);
+
+      for (i = 1; i >= -1; --i)
+	{
+	  if (mpz_fits_ulong_p (d)
+	      && ((got = mpz_gcd_ui (NULL, x, mpz_get_ui (d)))
+		  != (i != 0 ? 1 : mpz_get_ui (d))))
+	    {
+	      printf ("mpz_gcd_ui (f, kV+%i*2^%i, V): error (j = %i)\n", i, GMP_NUMB_BITS - 1, j);
+	      printf ("   return %#lx\n", got);
+	      printf ("   should be %#lx\n", (i != 0 ? 1 : mpz_get_ui (d)));
+	      abort ();
+	    }
+
+	  mpz_gcd (g, x, d);
+	  if ((mpz_cmp_ui (g, 1) == 0) != (i != 0))
+	    {
+	      printf ("mpz_gcd (f, kV+%i*2^%i, V): error (j = %i)\n", i, GMP_NUMB_BITS - 1, j);
+	      printf ("   should%s be one.\n",(i != 0 ? "" : " not"));
+	      abort ();
+	    }
+
+	  mpz_sub (x, x, b);
+	}
+      /* Back to the original x. */
+      mpz_addmul_ui (x, b, 2);
+      mpz_mul (b, b, f);
+      mpz_mod (b, b, d);
+    }
+
+  mpz_clear (g);
+  mpz_clear (x);
+  mpz_clear (f);
+  mpz_clear (d);
+  mpz_clear (b);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_ui_range ();
+  check_ui_factors ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-get_d.c b/vendor/gmp-6.3.0/tests/mpz/t-get_d.c
new file mode 100644
index 0000000..f4c839f
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-get_d.c
@@ -0,0 +1,80 @@
+/* Test mpz_get_d.
+
+Copyright 2002, 2012, 2020 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_onebit (void)
+{
+  int     i;
+  mpz_t   z;
+  double  got, want;
+  /* FIXME: It'd be better to base this on the float format. */
+#if defined (__vax) || defined (__vax__)
+  int     limit = 127 - 1;  /* vax fp numbers have limited range */
+#else
+  int     limit = 512;
+#endif
+
+  mpz_init (z);
+
+  got = mpz_get_d (z);
+  if (got != 0)
+    {
+      printf    ("mpz_get_d wrong on zero\n");
+      abort();
+    }
+
+  mpz_set_ui (z, 1L);
+  want = 1.0;
+
+  for (i = 0; i < limit; i++)
+    {
+      got = mpz_get_d (z);
+
+      if (got != want)
+        {
+          printf    ("mpz_get_d wrong on 2**%d\n", i);
+          mpz_trace ("   z    ", z);
+          printf    ("   want  %.20g\n", want);
+          printf    ("   got   %.20g\n", got);
+          abort();
+        }
+
+      mpz_mul_2exp (z, z, 1L);
+      want *= 2.0;
+    }
+  mpz_clear (z);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_onebit ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-get_d_2exp.c b/vendor/gmp-6.3.0/tests/mpz/t-get_d_2exp.c
new file mode 100644
index 0000000..04cf1a4
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-get_d_2exp.c
@@ -0,0 +1,222 @@
+/* Test mpz_get_d_2exp.
+
+Copyright 2002, 2003, 2012 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+static void
+check_zero (void)
+{
+  mpz_t   z;
+  double  got, want;
+  long    got_exp, want_exp;
+
+  mpz_init_set_ui (z, 0);
+
+  want = 0.0;
+  want_exp = 0;
+  got = mpz_get_d_2exp (&got_exp, z);
+  if (got != want || got_exp != want_exp)
+    {
+      printf    ("mpz_get_d_2exp wrong on zero\n");
+      mpz_trace ("   z    ", z);
+      d_trace   ("   want ", want);
+      d_trace   ("   got  ", got);
+      printf    ("   want exp %ld\n", want_exp);
+      printf    ("   got exp  %ld\n", got_exp);
+      abort();
+    }
+
+  mpz_clear (z);
+}
+
+static void
+check_onebit (void)
+{
+  static const unsigned long data[] = {
+    1, 32, 52, 53, 54, 63, 64, 65, 128, 256, 511, 512, 513
+  };
+  mpz_t   z;
+  double  got, want;
+  long    got_exp, want_exp;
+  int     i;
+
+  mpz_init (z);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_ui (z, 1L);
+      mpz_mul_2exp (z, z, data[i]);
+      want = 0.5;
+      want_exp = data[i] + 1;
+      got = mpz_get_d_2exp (&got_exp, z);
+      if (got != want || got_exp != want_exp)
+        {
+          printf    ("mpz_get_d_2exp wrong on 2**%ld\n", data[i]);
+          mpz_trace ("   z    ", z);
+          d_trace   ("   want ", want);
+          d_trace   ("   got  ", got);
+          printf    ("   want exp %ld\n", want_exp);
+          printf    ("   got exp  %ld\n", got_exp);
+          abort();
+        }
+
+      mpz_set_si (z, -1L);
+      mpz_mul_2exp (z, z, data[i]);
+      want = -0.5;
+      want_exp = data[i] + 1;
+      got = mpz_get_d_2exp (&got_exp, z);
+      if (got != want || got_exp != want_exp)
+        {
+          printf    ("mpz_get_d_2exp wrong on -2**%ld\n", data[i]);
+          mpz_trace ("   z    ", z);
+          d_trace   ("   want ", want);
+          d_trace   ("   got  ", got);
+          printf    ("   want exp %ld\n", want_exp);
+          printf    ("   got exp  %ld\n", got_exp);
+          abort();
+        }
+    }
+  mpz_clear (z);
+}
+
+/* Check that hardware rounding doesn't make mpz_get_d_2exp return a value
+   outside its defined range. */
+static void
+check_round (void)
+{
+  static const unsigned long data[] = { 1, 32, 53, 54, 64, 128, 256, 512 };
+  mpz_t   z;
+  double  got;
+  long    got_exp;
+  int     i, rnd_mode, old_rnd_mode;
+
+  mpz_init (z);
+  old_rnd_mode = tests_hardware_getround ();
+
+  for (rnd_mode = 0; rnd_mode < 4; rnd_mode++)
+    {
+      tests_hardware_setround (rnd_mode);
+
+      for (i = 0; i < numberof (data); i++)
+        {
+          mpz_set_ui (z, 1L);
+          mpz_mul_2exp (z, z, data[i]);
+          mpz_sub_ui (z, z, 1L);
+
+          got = mpz_get_d_2exp (&got_exp, z);
+          if (got < 0.5 || got >= 1.0)
+            {
+              printf    ("mpz_get_d_2exp wrong on 2**%lu-1\n", data[i]);
+              printf    ("result out of range, expect 0.5 <= got < 1.0\n");
+              printf    ("   rnd_mode = %d\n", rnd_mode);
+              printf    ("   data[i]  = %lu\n", data[i]);
+              mpz_trace ("   z    ", z);
+              d_trace   ("   got  ", got);
+              printf    ("   got exp  %ld\n", got_exp);
+              abort();
+            }
+
+          mpz_neg (z, z);
+          got = mpz_get_d_2exp (&got_exp, z);
+          if (got <= -1.0 || got > -0.5)
+            {
+              printf    ("mpz_get_d_2exp wrong on -2**%lu-1\n", data[i]);
+              printf    ("result out of range, expect -1.0 < got <= -0.5\n");
+              printf    ("   rnd_mode = %d\n", rnd_mode);
+              printf    ("   data[i]  = %lu\n", data[i]);
+              mpz_trace ("   z    ", z);
+              d_trace   ("   got  ", got);
+              printf    ("   got exp  %ld\n", got_exp);
+              abort();
+            }
+        }
+    }
+
+  mpz_clear (z);
+  tests_hardware_setround (old_rnd_mode);
+}
+
+static void
+check_rand (void)
+{
+  gmp_randstate_ptr rands = RANDS;
+  int     i;
+  mpz_t   z;
+  double  got;
+  long    got_exp;
+  unsigned long  bits;
+
+  mpz_init (z);
+
+  for (i = 0; i < 200; i++)
+    {
+      bits = gmp_urandomm_ui (rands, 512L);
+      mpz_urandomb (z, rands, bits);
+
+      got = mpz_get_d_2exp (&got_exp, z);
+      if (mpz_sgn (z) == 0)
+        continue;
+      bits = mpz_sizeinbase (z, 2);
+
+      if (got < 0.5 || got >= 1.0)
+        {
+          printf    ("mpz_get_d_2exp out of range, expect 0.5 <= got < 1.0\n");
+          mpz_trace ("   z    ", z);
+          d_trace   ("   got  ", got);
+          printf    ("   got exp  %ld\n", got_exp);
+          abort();
+        }
+
+      /* FIXME: If mpz_get_d_2exp rounds upwards we might have got_exp ==
+         bits+1, so leave this test disabled until we decide if that's what
+         should happen, or not.  */
+#if 0
+      if (got_exp != bits)
+        {
+          printf    ("mpz_get_d_2exp wrong exponent\n", i);
+          mpz_trace ("   z    ", z);
+          d_trace   ("   bits ", bits);
+          d_trace   ("   got  ", got);
+          printf    ("   got exp  %ld\n", got_exp);
+          abort();
+        }
+#endif
+    }
+  mpz_clear (z);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_zero ();
+  check_onebit ();
+  check_round ();
+  check_rand ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-get_si.c b/vendor/gmp-6.3.0/tests/mpz/t-get_si.c
new file mode 100644
index 0000000..51f104a
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-get_si.c
@@ -0,0 +1,121 @@
+/* Exercise mpz_get_si.
+
+Copyright 2000, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *n;
+    long        want;
+  } data[] = {
+    { "0",      0L },
+    { "1",      1L },
+    { "-1",     -1L },
+    { "2",      2L },
+    { "-2",     -2L },
+    { "12345",  12345L },
+    { "-12345", -12345L },
+  };
+
+  int    i;
+  mpz_t  n;
+  long   got;
+
+  mpz_init (n);
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (n, data[i].n, 0);
+
+      got = mpz_get_si (n);
+      if (got != data[i].want)
+	{
+	  printf ("mpz_get_si wrong at data[%d]\n", i);
+	  printf ("   n     \"%s\" (", data[i].n);
+	  mpz_out_str (stdout, 10, n); printf (", hex ");
+	  mpz_out_str (stdout, 16, n); printf (")\n");
+	  printf ("   got   %ld (0x%lX)\n", got, got);
+	  printf ("   want  %ld (0x%lX)\n", data[i].want, data[i].want);
+	  abort();
+	}
+    }
+  mpz_clear (n);
+}
+
+
+void
+check_max (void)
+{
+  mpz_t  n;
+  long   want;
+  long   got;
+
+  mpz_init (n);
+
+#define CHECK_MAX(name)                                 \
+  if (got != want)                                      \
+    {                                                   \
+      printf ("mpz_get_si wrong on %s\n", name);        \
+      printf ("   n    ");                              \
+      mpz_out_str (stdout, 10, n); printf (", hex ");   \
+      mpz_out_str (stdout, 16, n); printf ("\n");       \
+      printf ("   got  %ld, hex %lX\n", got, got);      \
+      printf ("   want %ld, hex %lX\n", want, want);    \
+      abort();                                          \
+    }
+
+  want = LONG_MAX;
+  mpz_set_si (n, want);
+  got = mpz_get_si (n);
+  CHECK_MAX ("LONG_MAX");
+
+  want = LONG_MIN;
+  mpz_set_si (n, want);
+  got = mpz_get_si (n);
+  CHECK_MAX ("LONG_MIN");
+
+  /* The following checks that -0x100000000 gives -0x80000000.  This doesn't
+     actually fit in a long and the result from mpz_get_si() is undefined,
+     but -0x80000000 is what comes out currently, and it should be that
+     value irrespective of the mp_limb_t size (long or long long).  */
+
+  want = LONG_MIN;
+  mpz_mul_2exp (n, n, 1);
+  CHECK_MAX ("-0x100...00");
+
+  mpz_clear (n);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_data ();
+  check_max ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-hamdist.c b/vendor/gmp-6.3.0/tests/mpz/t-hamdist.c
new file mode 100644
index 0000000..544a03f
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-hamdist.c
@@ -0,0 +1,123 @@
+/* Test mpz_hamdist.
+
+Copyright 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_twobits (void)
+{
+  unsigned long  i, j, got, want;
+  mpz_t  x, y;
+
+  mpz_init (x);
+  mpz_init (y);
+  for (i = 0; i < 5 * GMP_NUMB_BITS; i++)
+    {
+      for (j = 0; j < 5 * GMP_NUMB_BITS; j++)
+        {
+          mpz_set_ui (x, 0L);
+          mpz_setbit (x, i);
+          mpz_set_ui (y, 0L);
+          mpz_setbit (y, j);
+
+          want = 2 * (i != j);
+          got = mpz_hamdist (x, y);
+          if (got != want)
+            {
+              printf    ("mpz_hamdist wrong on 2 bits pos/pos\n");
+            wrong:
+              printf    ("  i    %lu\n", i);
+              printf    ("  j    %lu\n", j);
+              printf    ("  got  %lu\n", got);
+              printf    ("  want %lu\n", want);
+              mpz_trace ("  x   ", x);
+              mpz_trace ("  y   ", y);
+              abort();
+            }
+
+          mpz_neg (x, x);
+          mpz_neg (y, y);
+          want = ABS ((long) (i-j));
+          got = mpz_hamdist (x, y);
+          if (got != want)
+            {
+              printf    ("mpz_hamdist wrong on 2 bits neg/neg\n");
+              goto wrong;
+            }
+        }
+
+    }
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+
+void
+check_rand (void)
+{
+  gmp_randstate_ptr  rands = RANDS;
+  unsigned long  got, want;
+  int    i;
+  mpz_t  x, y;
+
+  mpz_init (x);
+  mpz_init (y);
+
+  for (i = 0; i < 2000; i++)
+    {
+      mpz_erandomb (x, rands, 6 * GMP_NUMB_BITS);
+      mpz_negrandom (x, rands);
+      mpz_mul_2exp (x, x, urandom() % (4 * GMP_NUMB_BITS));
+
+      mpz_erandomb (y, rands, 6 * GMP_NUMB_BITS);
+      mpz_negrandom (y, rands);
+      mpz_mul_2exp (y, y, urandom() % (4 * GMP_NUMB_BITS));
+
+      want = refmpz_hamdist (x, y);
+      got = mpz_hamdist (x, y);
+      if (got != want)
+        {
+          printf    ("mpz_hamdist wrong on random\n");
+          printf    ("  got  %lu\n", got);
+          printf    ("  want %lu\n", want);
+          mpz_trace ("  x   ", x);
+          mpz_trace ("  y   ", y);
+          abort();
+        }
+    }
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+int
+main (void)
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_twobits ();
+  check_rand ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-import.c b/vendor/gmp-6.3.0/tests/mpz/t-import.c
new file mode 100644
index 0000000..a295317
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-import.c
@@ -0,0 +1,175 @@
+/* Test mpz_import.
+
+Copyright 2002, 2003 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *want;
+    size_t      count;
+    int         order;
+    size_t      size;
+    int         endian;
+    int         nail;
+    char        src[64];
+
+  } data[] = {
+
+    { "0", 0,1, 1,1, 0 },
+    { "0", 1,1, 0,1, 0 },
+
+    { "0x12345678", 4,1,  1,1, 0, { '\22', '\64', '\126', '\170' } },
+    { "0x12345678", 1,1,  4,1, 0, { '\22', '\64', '\126', '\170' } },
+    { "0x12345678", 1,-1, 4,1, 0, { '\22', '\64', '\126', '\170' } },
+
+    { "0x12345678", 4,-1, 1,-1, 0, { '\170', '\126', '\064', '\22' } },
+    { "0x12345678", 1,1,  4,-1, 0, { '\170', '\126', '\064', '\22' } },
+    { "0x12345678", 1,-1, 4,-1, 0, { '\170', '\126', '\064', '\22' } },
+
+    { "0",    5,1,  1,1, 7, { '\376', '\376', '\376', '\376', '\376' } },
+    { "0",    5,-1, 1,1, 7, { '\376', '\376', '\376', '\376', '\376' } },
+    { "0x15", 5,1,  1,1, 7, { '\377', '\376', '\377', '\376', '\377' } },
+
+    { "0",    3,1,  2,1,   1, { '\200','\000', '\200','\000', '\200','\000' }},
+    { "0",    3,1,  2,-1,  1, { '\000','\200', '\000','\200', '\000','\200' }},
+    { "0",    3,1,  2,1,  15, { '\377','\376', '\377','\376', '\377','\376' }},
+
+    { "0x2A", 3,1,  2,1, 14, { '\377','\376', '\377','\376', '\377','\376' } },
+    { "0x06", 3,1,  2,1, 14, { '\377','\374', '\377','\375', '\377','\376' } },
+    { "0x24", 3,-1, 2,1, 14, { '\377','\374', '\377','\375', '\377','\376' } },
+
+    { "0x123456789ABC", 3,1,  2,1,  0, {
+        '\022','\064', '\126','\170', '\232','\274' } },
+    { "0x123456789ABC", 3,-1, 2,1,  0, {
+        '\232','\274', '\126','\170', '\022','\064' } },
+    { "0x123456789ABC", 3,1,  2,-1, 0, {
+        '\064','\022', '\170','\126', '\274','\232' } },
+    { "0x123456789ABC", 3,-1, 2,-1, 0, {
+        '\274','\232', '\170','\126', '\064','\022' } },
+
+    { "0x112233445566778899AABBCC", 3,1,  4,1,  0,
+      { '\021','\042','\063','\104',
+        '\125','\146','\167','\210',
+        '\231','\252','\273','\314' } },
+    { "0x112233445566778899AABBCC", 3,-1, 4,1,  0,
+      { '\231','\252','\273','\314',
+        '\125','\146','\167','\210',
+        '\021','\042','\063','\104' } },
+    { "0x112233445566778899AABBCC", 3,1,  4,-1, 0,
+      { '\104','\063','\042','\021',
+        '\210','\167','\146','\125',
+        '\314','\273','\252','\231' } },
+    { "0x112233445566778899AABBCC", 3,-1, 4,-1, 0,
+      { '\314','\273','\252','\231',
+        '\210','\167','\146','\125',
+        '\104','\063','\042','\021' } },
+
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,1,  8,1,  0,
+      { '\020','\001','\040','\002','\060','\003','\100','\004',
+        '\120','\005','\140','\006','\160','\007','\200','\010',
+        '\220','\011','\240','\012','\260','\013','\300','\014' } },
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,-1, 8,1,  0,
+      { '\220','\011','\240','\012','\260','\013','\300','\014',
+        '\120','\005','\140','\006','\160','\007','\200','\010',
+        '\020','\001','\040','\002','\060','\003','\100','\004' } },
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,1,  8,-1, 0,
+      { '\004','\100','\003','\060','\002','\040','\001','\020',
+        '\010','\200','\007','\160','\006','\140','\005','\120',
+        '\014','\300','\013','\260','\012','\240','\011','\220' } },
+    { "0x100120023003400450056006700780089009A00AB00BC00C", 3,-1, 8,-1, 0,
+      { '\014','\300','\013','\260','\012','\240','\011','\220',
+        '\010','\200','\007','\160','\006','\140','\005','\120',
+        '\004','\100','\003','\060','\002','\040','\001','\020' } },
+
+    { "0x155555555555555555555555", 3,1,  4,1,  1,
+      { '\325','\125','\125','\125',
+        '\252','\252','\252','\252',
+        '\325','\125','\125','\125' } },
+    { "0x155555555555555555555555", 3,-1,  4,1,  1,
+      { '\325','\125','\125','\125',
+        '\252','\252','\252','\252',
+        '\325','\125','\125','\125' } },
+    { "0x155555555555555555555555", 3,1,  4,-1,  1,
+      { '\125','\125','\125','\325',
+        '\252','\252','\252','\252',
+        '\125','\125','\125','\325' } },
+    { "0x155555555555555555555555", 3,-1,  4,-1,  1,
+      { '\125','\125','\125','\325',
+        '\252','\252','\252','\252',
+        '\125','\125','\125','\325' } },
+  };
+
+  char    buf[sizeof(data[0].src) + sizeof (mp_limb_t)];
+  char    *src;
+  size_t  align;
+  int     i;
+  mpz_t   got, want;
+
+  mpz_init (got);
+  mpz_init (want);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      for (align = 0; align < sizeof (mp_limb_t); align++)
+        {
+          mpz_set_str_or_abort (want, data[i].want, 0);
+          src = buf + align;
+          memcpy (src, data[i].src, data[i].count * data[i].size);
+
+          mpz_set_ui (got, 0L);
+          mpz_import (got, data[i].count, data[i].order,
+                      data[i].size, data[i].endian, data[i].nail, src);
+
+          MPZ_CHECK_FORMAT (got);
+          if (mpz_cmp (got, want) != 0)
+            {
+              printf ("wrong at data[%d]\n", i);
+              printf ("    count=%lu order=%d  size=%lu endian=%d nail=%u  align=%lu\n",
+                      (unsigned long) data[i].count, data[i].order,
+                      (unsigned long) data[i].size, data[i].endian, data[i].nail,
+                      (unsigned long) align);
+              mpz_trace ("    got ", got);
+              mpz_trace ("    want", want);
+              abort ();
+            }
+        }
+    }
+  mpz_clear (got);
+  mpz_clear (want);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  mp_trace_base = -16;
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-inp_str.c b/vendor/gmp-6.3.0/tests/mpz/t-inp_str.c
new file mode 100644
index 0000000..e686de5
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-inp_str.c
@@ -0,0 +1,198 @@
+/* Test mpz_inp_str.
+
+Copyright 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>		/* for unlink */
+#endif
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+#define FILENAME  "t-inp_str.tmp"
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *inp;
+    int         base;
+    const char  *want;
+    int         want_nread;
+
+  } data[] = {
+
+    { "0",   10, "0", 1 },
+
+    { "abc", 10, "0", 0 },
+    { "0xf", 10, "0", 1 },
+    { "ghi", 16, "0", 0 },
+    { "100", 90, "0", 0 },
+
+    {  "ff", 16,  "255", 2 },
+    { "-ff", 16, "-255", 3 },
+    {  "FF", 16,  "255", 2 },
+    { "-FF", 16, "-255", 3 },
+
+    {  "z", 36, "35", 1 },
+    {  "Z", 36, "35", 1 },
+    { "1B", 59, "70", 2 },
+    {  "a", 60, "36", 1 },
+    {  "A", 61, "10", 1 },
+
+    {  "0x0",    0,   "0", 3 },
+    {  "0X10",   0,  "16", 4 },
+    { "-0X0",    0,   "0", 4 },
+    { "-0x10",   0, "-16", 5 },
+
+    {  "0b0",    0,  "0", 3 },
+    {  "0B10",   0,  "2", 4 },
+    { "-0B0",    0,  "0", 4 },
+    { "-0b10",   0, "-2", 5 },
+
+    {  "00",   0,  "0", 2 },
+    {  "010",  0,  "8", 3 },
+    { "-00",   0,  "0", 3 },
+    { "-010",  0, "-8", 4 },
+
+    {  "0x",     0,   "0", 2 },
+    {  "0",      0,   "0", 1 },
+    { " 030",   10,  "30", 4 },
+  };
+
+  mpz_t  got, want;
+  long   ftell_nread;
+  int    i, pre, post, j, got_nread, want_nread;
+  FILE   *fp;
+
+  mpz_init (got);
+  mpz_init (want);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      for (pre = 0; pre <= 3; pre++)
+	{
+	  for (post = 0; post <= 2; post++)
+	    {
+	      mpz_set_str_or_abort (want, data[i].want, 0);
+	      MPZ_CHECK_FORMAT (want);
+
+	      /* create the file new each time to ensure its length is what
+		 we want */
+	      fp = fopen (FILENAME, "w+");
+	      ASSERT_ALWAYS (fp != NULL);
+	      for (j = 0; j < pre; j++)
+		putc (' ', fp);
+	      fputs (data[i].inp, fp);
+	      for (j = 0; j < post; j++)
+		putc (' ', fp);
+	      fflush (fp);
+	      ASSERT_ALWAYS (! ferror(fp));
+
+	      rewind (fp);
+	      got_nread = mpz_inp_str (got, fp, data[i].base);
+
+	      if (got_nread != 0)
+		{
+		  ftell_nread = ftell (fp);
+		  if (got_nread != ftell_nread)
+		    {
+		      printf ("mpz_inp_str nread wrong\n");
+		      printf ("  inp          \"%s\"\n", data[i].inp);
+		      printf ("  base         %d\n", data[i].base);
+		      printf ("  pre          %d\n", pre);
+		      printf ("  post         %d\n", post);
+		      printf ("  got_nread    %d\n", got_nread);
+		      printf ("  ftell_nread  %ld\n", ftell_nread);
+		      abort ();
+		    }
+		}
+
+	      /* if data[i].inp is a whole string to read and there's no post
+		 whitespace then expect to have EOF */
+	      if (post == 0 && data[i].want_nread == strlen(data[i].inp))
+		{
+		  int  c = getc(fp);
+		  if (c != EOF)
+		    {
+		      printf ("mpz_inp_str didn't read to EOF\n");
+		      printf ("  inp   \"%s\"\n", data[i].inp);
+		      printf ("  base  %d\n", data[i].base);
+		      printf ("  pre   %d\n", pre);
+		      printf ("  post  %d\n", post);
+		      printf ("  c     '%c' %#x\n", c, c);
+		      abort ();
+		    }
+		}
+
+	      /* only expect "pre" included in the count when non-zero */
+	      want_nread = data[i].want_nread;
+	      if (want_nread != 0)
+		want_nread += pre;
+
+	      if (got_nread != want_nread)
+		{
+		  printf ("mpz_inp_str nread wrong\n");
+		  printf ("  inp         \"%s\"\n", data[i].inp);
+		  printf ("  base        %d\n", data[i].base);
+		  printf ("  pre         %d\n", pre);
+		  printf ("  post        %d\n", post);
+		  printf ("  got_nread   %d\n", got_nread);
+		  printf ("  want_nread  %d\n", want_nread);
+		  abort ();
+		}
+
+	      MPZ_CHECK_FORMAT (got);
+
+	      if (mpz_cmp (got, want) != 0)
+		{
+		  printf ("mpz_inp_str wrong result\n");
+		  printf ("  inp   \"%s\"\n", data[i].inp);
+		  printf ("  base  %d\n", data[i].base);
+		  mpz_trace ("  got ",  got);
+		  mpz_trace ("  want", want);
+		  abort ();
+		}
+
+	      ASSERT_ALWAYS (fclose (fp) == 0);
+	    }
+	}
+    }
+
+  mpz_clear (got);
+  mpz_clear (want);
+}
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_data ();
+
+  unlink (FILENAME);
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-invert.c b/vendor/gmp-6.3.0/tests/mpz/t-invert.c
new file mode 100644
index 0000000..0081c49
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-invert.c
@@ -0,0 +1,117 @@
+/* Test mpz_invert.
+
+Copyright 1991, 1993, 1994, 1996, 1997, 2000-2005, 2008, 2009, 2012, 2014 Free
+Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+int
+main (int argc, char **argv)
+{
+  mpz_t a, m, ainv, t;
+  int test, r;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  int reps = 1000;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+  mpz_init (a);
+  mpz_init (m);
+  mpz_init (ainv);
+  mpz_init (t);
+
+  for (test = 0; test < reps; test++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (a, rands, mpz_get_ui (bs));
+      do {
+	mpz_urandomb (bs, rands, size_range);
+	mpz_rrandomb (m, rands, mpz_get_ui (bs));
+      } while (mpz_sgn (m) == 0);
+
+      mpz_urandomb (bs, rands, 8);
+      bsi = mpz_get_ui (bs);
+
+      if ((bsi & 1) != 0)
+	mpz_neg (a, a);
+      if ((bsi & 2) != 0)
+	mpz_neg (m, m);
+
+      r = mpz_invert (ainv, a, m);
+      if (r != 0)
+	{
+	  MPZ_CHECK_FORMAT (ainv);
+
+	  if (mpz_cmp_ui (ainv, 0) < 0 || mpz_cmpabs (ainv, m) >= 0)
+	    {
+	      fprintf (stderr, "ERROR in test %d\n", test);
+	      gmp_fprintf (stderr, "Inverse out of range.\n");
+	      gmp_fprintf (stderr, "a = %Zx\n", a);
+	      gmp_fprintf (stderr, "1/a = %Zx\n", ainv);
+	      gmp_fprintf (stderr, "m = %Zx\n", m);
+	      abort ();
+	    }
+
+	  mpz_mul (t, ainv, a);
+	  mpz_mod (t, t, m);
+
+	  if (mpz_cmp_ui (t, mpz_cmpabs_ui (m, 1) != 0) != 0)
+	    {
+	      fprintf (stderr, "ERROR in test %d\n", test);
+	      gmp_fprintf (stderr, "a^(-1)*a != 1 (mod m)\n");
+	      gmp_fprintf (stderr, "a = %Zx\n", a);
+	      gmp_fprintf (stderr, "m = %Zx\n", m);
+	      abort ();
+	    }
+	}
+      else /* Inverse deos not exist */
+	{
+	  mpz_gcd (t, a, m);
+	  if (mpz_cmp_ui (t, 1) == 0)
+	    {
+	      fprintf (stderr, "ERROR in test %d\n", test);
+	      gmp_fprintf (stderr, "Inverse exists, but was not found.\n");
+	      gmp_fprintf (stderr, "a = %Zx\n", a);
+	      gmp_fprintf (stderr, "m = %Zx\n", m);
+	      abort ();
+	    }
+	}
+    }
+
+  mpz_clear (bs);
+  mpz_clear (a);
+  mpz_clear (m);
+  mpz_clear (ainv);
+  mpz_clear (t);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-io_raw.c b/vendor/gmp-6.3.0/tests/mpz/t-io_raw.c
new file mode 100644
index 0000000..e299b5a
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-io_raw.c
@@ -0,0 +1,286 @@
+/* Test mpz_inp_raw and mpz_out_raw.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#define FILENAME  "t-io_raw.tmp"
+
+
+/* In the fopen, "b" selects binary mode on DOS systems, meaning no
+   conversion of '\n' to and from CRLF.  It's believed systems without such
+   nonsense will simply ignore the "b", but in case that's not so a plain
+   "w+" is attempted if "w+b" fails.  */
+
+FILE *
+fopen_wplusb_or_die (const char *filename)
+{
+  FILE  *fp;
+  fp = fopen (filename, "w+b");
+  if (fp == NULL)
+    fp = fopen (filename, "w+");
+
+  if (fp == NULL)
+    {
+      printf ("Cannot create file %s\n", filename);
+      abort ();
+    }
+  return fp;
+}
+
+/* use 0x80 to check nothing bad happens with sign extension etc */
+#define BYTEVAL(i)  (((i) + 1) | 0x80)
+
+void
+check_in (void)
+{
+  int        i, j, zeros, neg, error = 0;
+  mpz_t      want, got;
+  size_t     want_ret, got_ret;
+  mp_size_t  size;
+  FILE       *fp;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  for (i = 0; i < 32; i++)
+    {
+      for (zeros = 0; zeros < 8; zeros++)
+	{
+	  for (neg = 0; neg <= 1; neg++)
+	    {
+	      want_ret = i + zeros + 4;
+
+	      /* need this to get the twos complement right */
+	      ASSERT_ALWAYS (sizeof (size) >= 4);
+
+	      size = i + zeros;
+	      if (neg)
+		size = -size;
+
+	      fp = fopen_wplusb_or_die (FILENAME);
+	      for (j = 3; j >= 0; j--)
+		ASSERT_ALWAYS (putc ((size >> (j*8)) & 0xFF, fp) != EOF);
+	      for (j = 0; j < zeros; j++)
+		ASSERT_ALWAYS (putc ('\0', fp) != EOF);
+	      for (j = 0; j < i; j++)
+		ASSERT_ALWAYS (putc (BYTEVAL (j), fp) != EOF);
+	      /* and some trailing garbage */
+	      ASSERT_ALWAYS (putc ('x', fp) != EOF);
+	      ASSERT_ALWAYS (putc ('y', fp) != EOF);
+	      ASSERT_ALWAYS (putc ('z', fp) != EOF);
+	      ASSERT_ALWAYS (fflush (fp) == 0);
+	      rewind (fp);
+
+	      got_ret = mpz_inp_raw (got, fp);
+	      ASSERT_ALWAYS (! ferror(fp));
+	      ASSERT_ALWAYS (fclose (fp) == 0);
+
+	      MPZ_CHECK_FORMAT (got);
+
+	      if (got_ret != want_ret)
+		{
+		  printf ("check_in: return value wrong\n");
+		  error = 1;
+		}
+	      if (mpz_cmp (got, want) != 0)
+		{
+		  printf ("check_in: result wrong\n");
+		  error = 1;
+		}
+	      if (error)
+		{
+		  printf    ("  i=%d zeros=%d neg=%d\n", i, zeros, neg);
+		  printf    ("  got_ret  %lu\n", (unsigned long) got_ret);
+		  printf    ("  want_ret %lu\n", (unsigned long) want_ret);
+		  mpz_trace ("  got      ", got);
+		  mpz_trace ("  want     ", want);
+		  abort ();
+		}
+
+	      mpz_neg (want, want);
+	    }
+	}
+      mpz_mul_2exp (want, want, 8);
+      mpz_add_ui (want, want, (unsigned long) BYTEVAL (i));
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+
+void
+check_out (void)
+{
+  int        i, j, neg, error = 0;
+  mpz_t      z;
+  char       want[256], got[256], *p;
+  size_t     want_len, got_ret, got_read;
+  mp_size_t  size;
+  FILE       *fp;
+
+  mpz_init (z);
+
+  for (i = 0; i < 32; i++)
+    {
+      for (neg = 0; neg <= 1; neg++)
+	{
+	  want_len = i + 4;
+
+	  /* need this to get the twos complement right */
+	  ASSERT_ALWAYS (sizeof (size) >= 4);
+
+	  size = i;
+	  if (neg)
+	    size = -size;
+
+	  p = want;
+	  for (j = 3; j >= 0; j--)
+	    *p++ = size >> (j*8);
+	  for (j = 0; j < i; j++)
+	    *p++ = BYTEVAL (j);
+	  ASSERT_ALWAYS (p <= want + sizeof (want));
+
+	  fp = fopen_wplusb_or_die (FILENAME);
+	  got_ret = mpz_out_raw (fp, z);
+	  ASSERT_ALWAYS (fflush (fp) == 0);
+	  rewind (fp);
+	  got_read = fread (got, 1, sizeof(got), fp);
+	  ASSERT_ALWAYS (! ferror(fp));
+	  ASSERT_ALWAYS (fclose (fp) == 0);
+
+	  if (got_ret != want_len)
+	    {
+	      printf ("check_out: wrong return value\n");
+	      error = 1;
+	    }
+	  if (got_read != want_len)
+	    {
+	      printf ("check_out: wrong number of bytes read back\n");
+	      error = 1;
+	    }
+	  if (memcmp (want, got, want_len) != 0)
+	    {
+	      printf ("check_out: wrong data\n");
+	      error = 1;
+	    }
+	  if (error)
+	    {
+	      printf    ("  i=%d neg=%d\n", i, neg);
+	      mpz_trace ("  z", z);
+	      printf    ("  got_ret  %lu\n", (unsigned long) got_ret);
+	      printf    ("  got_read %lu\n", (unsigned long) got_read);
+	      printf    ("  want_len %lu\n", (unsigned long) want_len);
+	      printf    ("  want");
+	      for (j = 0; j < want_len; j++)
+		printf (" %02X", (unsigned) (unsigned char) want[j]);
+	      printf    ("\n");
+	      printf    ("  got ");
+	      for (j = 0; j < want_len; j++)
+		printf (" %02X", (unsigned) (unsigned char) got[j]);
+	      printf    ("\n");
+	      abort ();
+	    }
+
+	  mpz_neg (z, z);
+	}
+      mpz_mul_2exp (z, z, 8);
+      mpz_add_ui (z, z, (unsigned long) BYTEVAL (i));
+    }
+
+  mpz_clear (z);
+}
+
+
+void
+check_rand (void)
+{
+  gmp_randstate_ptr  rands = RANDS;
+  int        i, error = 0;
+  mpz_t      got, want;
+  size_t     inp_ret, out_ret;
+  FILE       *fp;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  for (i = 0; i < 500; i++)
+    {
+      mpz_erandomb (want, rands, 10*GMP_LIMB_BITS);
+      mpz_negrandom (want, rands);
+
+      fp = fopen_wplusb_or_die (FILENAME);
+      out_ret = mpz_out_raw (fp, want);
+      ASSERT_ALWAYS (fflush (fp) == 0);
+      rewind (fp);
+      inp_ret = mpz_inp_raw (got, fp);
+      ASSERT_ALWAYS (fclose (fp) == 0);
+
+      MPZ_CHECK_FORMAT (got);
+
+      if (inp_ret != out_ret)
+	{
+	  printf ("check_rand: different inp/out return values\n");
+	  error = 1;
+	}
+      if (mpz_cmp (got, want) != 0)
+	{
+	  printf ("check_rand: wrong result\n");
+	  error = 1;
+	}
+      if (error)
+	{
+	  printf    ("  out_ret %lu\n", (unsigned long) out_ret);
+	  printf    ("  inp_ret %lu\n", (unsigned long) inp_ret);
+	  mpz_trace ("  want", want);
+	  mpz_trace ("  got ", got);
+	  abort ();
+	}
+    }
+
+  mpz_clear (got);
+  mpz_clear (want);
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_in ();
+  check_out ();
+  check_rand ();
+
+  unlink (FILENAME);
+  tests_end ();
+
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-jac.c b/vendor/gmp-6.3.0/tests/mpz/t-jac.c
new file mode 100644
index 0000000..ed8aff8
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-jac.c
@@ -0,0 +1,1008 @@
+/* Exercise mpz_*_kronecker_*() and mpz_jacobi() functions.
+
+Copyright 1999-2004, 2013 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+
+/* With no arguments the various Kronecker/Jacobi symbol routines are
+   checked against some test data and a lot of derived data.
+
+   To check the test data against PARI-GP, run
+
+	   t-jac -p | gp -q
+
+   Enhancements:
+
+   More big test cases than those given by check_squares_zi would be good.  */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#ifdef _LONG_LONG_LIMB
+#define LL(l,ll)  ll
+#else
+#define LL(l,ll)  l
+#endif
+
+
+int option_pari = 0;
+
+
+unsigned long
+mpz_mod4 (mpz_srcptr z)
+{
+  mpz_t          m;
+  unsigned long  ret;
+
+  mpz_init (m);
+  mpz_fdiv_r_2exp (m, z, 2);
+  ret = mpz_get_ui (m);
+  mpz_clear (m);
+  return ret;
+}
+
+int
+mpz_fits_ulimb_p (mpz_srcptr z)
+{
+  return (SIZ(z) == 1 || SIZ(z) == 0);
+}
+
+mp_limb_t
+mpz_get_ulimb (mpz_srcptr z)
+{
+  if (SIZ(z) == 0)
+    return 0;
+  else
+    return PTR(z)[0];
+}
+
+
+void
+try_base (mp_limb_t a, mp_limb_t b, int answer)
+{
+  int  got;
+
+  if ((b & 1) == 0 || b == 1 || a > b)
+    return;
+
+  got = mpn_jacobi_base (a, b, 0);
+  if (got != answer)
+    {
+      printf (LL("mpn_jacobi_base (%lu, %lu) is %d should be %d\n",
+		 "mpn_jacobi_base (%llu, %llu) is %d should be %d\n"),
+	      a, b, got, answer);
+      abort ();
+    }
+}
+
+
+void
+try_zi_ui (mpz_srcptr a, unsigned long b, int answer)
+{
+  int  got;
+
+  got = mpz_kronecker_ui (a, b);
+  if (got != answer)
+    {
+      printf ("mpz_kronecker_ui (");
+      mpz_out_str (stdout, 10, a);
+      printf (", %lu) is %d should be %d\n", b, got, answer);
+      abort ();
+    }
+}
+
+
+void
+try_zi_si (mpz_srcptr a, long b, int answer)
+{
+  int  got;
+
+  got = mpz_kronecker_si (a, b);
+  if (got != answer)
+    {
+      printf ("mpz_kronecker_si (");
+      mpz_out_str (stdout, 10, a);
+      printf (", %ld) is %d should be %d\n", b, got, answer);
+      abort ();
+    }
+}
+
+
+void
+try_ui_zi (unsigned long a, mpz_srcptr b, int answer)
+{
+  int  got;
+
+  got = mpz_ui_kronecker (a, b);
+  if (got != answer)
+    {
+      printf ("mpz_ui_kronecker (%lu, ", a);
+      mpz_out_str (stdout, 10, b);
+      printf (") is %d should be %d\n", got, answer);
+      abort ();
+    }
+}
+
+
+void
+try_si_zi (long a, mpz_srcptr b, int answer)
+{
+  int  got;
+
+  got = mpz_si_kronecker (a, b);
+  if (got != answer)
+    {
+      printf ("mpz_si_kronecker (%ld, ", a);
+      mpz_out_str (stdout, 10, b);
+      printf (") is %d should be %d\n", got, answer);
+      abort ();
+    }
+}
+
+
+/* Don't bother checking mpz_jacobi, since it only differs for b even, and
+   we don't have an actual expected answer for it.  tests/devel/try.c does
+   some checks though.  */
+void
+try_zi_zi (mpz_srcptr a, mpz_srcptr b, int answer)
+{
+  int  got;
+
+  got = mpz_kronecker (a, b);
+  if (got != answer)
+    {
+      printf ("mpz_kronecker (");
+      mpz_out_str (stdout, 10, a);
+      printf (", ");
+      mpz_out_str (stdout, 10, b);
+      printf (") is %d should be %d\n", got, answer);
+      abort ();
+    }
+}
+
+
+void
+try_pari (mpz_srcptr a, mpz_srcptr b, int answer)
+{
+  printf ("try(");
+  mpz_out_str (stdout, 10, a);
+  printf (",");
+  mpz_out_str (stdout, 10, b);
+  printf (",%d)\n", answer);
+}
+
+
+void
+try_each (mpz_srcptr a, mpz_srcptr b, int answer)
+{
+#if 0
+  fprintf(stderr, "asize = %d, bsize = %d\n",
+	  mpz_sizeinbase (a, 2), mpz_sizeinbase (b, 2));
+#endif
+  if (option_pari)
+    {
+      try_pari (a, b, answer);
+      return;
+    }
+
+  if (mpz_fits_ulimb_p (a) && mpz_fits_ulimb_p (b))
+    try_base (mpz_get_ulimb (a), mpz_get_ulimb (b), answer);
+
+  if (mpz_fits_ulong_p (b))
+    try_zi_ui (a, mpz_get_ui (b), answer);
+
+  if (mpz_fits_slong_p (b))
+    try_zi_si (a, mpz_get_si (b), answer);
+
+  if (mpz_fits_ulong_p (a))
+    try_ui_zi (mpz_get_ui (a), b, answer);
+
+  if (mpz_fits_sint_p (a))
+    try_si_zi (mpz_get_si (a), b, answer);
+
+  try_zi_zi (a, b, answer);
+}
+
+
+/* Try (a/b) and (a/-b). */
+void
+try_pn (mpz_srcptr a, mpz_srcptr b_orig, int answer)
+{
+  mpz_t  b;
+
+  mpz_init_set (b, b_orig);
+  try_each (a, b, answer);
+
+  mpz_neg (b, b);
+  if (mpz_sgn (a) < 0)
+    answer = -answer;
+
+  try_each (a, b, answer);
+
+  mpz_clear (b);
+}
+
+
+/* Try (a+k*p/b) for various k, using the fact (a/b) is periodic in a with
+   period p.  For b>0, p=b if b!=2mod4 or p=4*b if b==2mod4. */
+
+void
+try_periodic_num (mpz_srcptr a_orig, mpz_srcptr b, int answer)
+{
+  mpz_t  a, a_period;
+  int    i;
+
+  if (mpz_sgn (b) <= 0)
+    return;
+
+  mpz_init_set (a, a_orig);
+  mpz_init_set (a_period, b);
+  if (mpz_mod4 (b) == 2)
+    mpz_mul_ui (a_period, a_period, 4);
+
+  /* don't bother with these tests if they're only going to produce
+     even/even */
+  if (mpz_even_p (a) && mpz_even_p (b) && mpz_even_p (a_period))
+    goto done;
+
+  for (i = 0; i < 6; i++)
+    {
+      mpz_add (a, a, a_period);
+      try_pn (a, b, answer);
+    }
+
+  mpz_set (a, a_orig);
+  for (i = 0; i < 6; i++)
+    {
+      mpz_sub (a, a, a_period);
+      try_pn (a, b, answer);
+    }
+
+ done:
+  mpz_clear (a);
+  mpz_clear (a_period);
+}
+
+
+/* Try (a/b+k*p) for various k, using the fact (a/b) is periodic in b of
+   period p.
+
+			       period p
+	   a==0,1mod4             a
+	   a==2mod4              4*a
+	   a==3mod4 and b odd    4*a
+	   a==3mod4 and b even   8*a
+
+   In Henri Cohen's book the period is given as 4*a for all a==2,3mod4, but
+   a counterexample would seem to be (3/2)=-1 which with (3/14)=+1 doesn't
+   have period 4*a (but rather 8*a with (3/26)=-1).  Maybe the plain 4*a is
+   to be read as applying to a plain Jacobi symbol with b odd, rather than
+   the Kronecker extension to b even. */
+
+void
+try_periodic_den (mpz_srcptr a, mpz_srcptr b_orig, int answer)
+{
+  mpz_t  b, b_period;
+  int    i;
+
+  if (mpz_sgn (a) == 0 || mpz_sgn (b_orig) == 0)
+    return;
+
+  mpz_init_set (b, b_orig);
+
+  mpz_init_set (b_period, a);
+  if (mpz_mod4 (a) == 3 && mpz_even_p (b))
+    mpz_mul_ui (b_period, b_period, 8L);
+  else if (mpz_mod4 (a) >= 2)
+    mpz_mul_ui (b_period, b_period, 4L);
+
+  /* don't bother with these tests if they're only going to produce
+     even/even */
+  if (mpz_even_p (a) && mpz_even_p (b) && mpz_even_p (b_period))
+    goto done;
+
+  for (i = 0; i < 6; i++)
+    {
+      mpz_add (b, b, b_period);
+      try_pn (a, b, answer);
+    }
+
+  mpz_set (b, b_orig);
+  for (i = 0; i < 6; i++)
+    {
+      mpz_sub (b, b, b_period);
+      try_pn (a, b, answer);
+    }
+
+ done:
+  mpz_clear (b);
+  mpz_clear (b_period);
+}
+
+
+static const unsigned long  ktable[] = {
+  0, 1, 2, 3, 4, 5, 6, 7,
+  GMP_NUMB_BITS-1, GMP_NUMB_BITS, GMP_NUMB_BITS+1,
+  2*GMP_NUMB_BITS-1, 2*GMP_NUMB_BITS, 2*GMP_NUMB_BITS+1,
+  3*GMP_NUMB_BITS-1, 3*GMP_NUMB_BITS, 3*GMP_NUMB_BITS+1
+};
+
+
+/* Try (a/b*2^k) for various k. */
+void
+try_2den (mpz_srcptr a, mpz_srcptr b_orig, int answer)
+{
+  mpz_t  b;
+  int    kindex;
+  int    answer_a2, answer_k;
+  unsigned long k;
+
+  /* don't bother when b==0 */
+  if (mpz_sgn (b_orig) == 0)
+    return;
+
+  mpz_init_set (b, b_orig);
+
+  /* (a/2) is 0 if a even, 1 if a==1 or 7 mod 8, -1 if a==3 or 5 mod 8 */
+  answer_a2 = (mpz_even_p (a) ? 0
+	       : (((SIZ(a) >= 0 ? PTR(a)[0] : -PTR(a)[0]) + 2) & 7) < 4 ? 1
+	       : -1);
+
+  for (kindex = 0; kindex < numberof (ktable); kindex++)
+    {
+      k = ktable[kindex];
+
+      /* answer_k = answer*(answer_a2^k) */
+      answer_k = (answer_a2 == 0 && k != 0 ? 0
+		  : (k & 1) == 1 && answer_a2 == -1 ? -answer
+		  : answer);
+
+      mpz_mul_2exp (b, b_orig, k);
+      try_pn (a, b, answer_k);
+    }
+
+  mpz_clear (b);
+}
+
+
+/* Try (a*2^k/b) for various k.  If it happens mpz_ui_kronecker() gets (2/b)
+   wrong it will show up as wrong answers demanded. */
+void
+try_2num (mpz_srcptr a_orig, mpz_srcptr b, int answer)
+{
+  mpz_t  a;
+  int    kindex;
+  int    answer_2b, answer_k;
+  unsigned long  k;
+
+  /* don't bother when a==0 */
+  if (mpz_sgn (a_orig) == 0)
+    return;
+
+  mpz_init (a);
+
+  /* (2/b) is 0 if b even, 1 if b==1 or 7 mod 8, -1 if b==3 or 5 mod 8 */
+  answer_2b = (mpz_even_p (b) ? 0
+	       : (((SIZ(b) >= 0 ? PTR(b)[0] : -PTR(b)[0]) + 2) & 7) < 4 ? 1
+	       : -1);
+
+  for (kindex = 0; kindex < numberof (ktable); kindex++)
+    {
+      k = ktable[kindex];
+
+      /* answer_k = answer*(answer_2b^k) */
+      answer_k = (answer_2b == 0 && k != 0 ? 0
+		  : (k & 1) == 1 && answer_2b == -1 ? -answer
+		  : answer);
+
+	mpz_mul_2exp (a, a_orig, k);
+      try_pn (a, b, answer_k);
+    }
+
+  mpz_clear (a);
+}
+
+
+/* The try_2num() and try_2den() routines don't in turn call
+   try_periodic_num() and try_periodic_den() because it hugely increases the
+   number of tests performed, without obviously increasing coverage.
+
+   Useful extra derived cases can be added here. */
+
+void
+try_all (mpz_t a, mpz_t b, int answer)
+{
+  try_pn (a, b, answer);
+  try_periodic_num (a, b, answer);
+  try_periodic_den (a, b, answer);
+  try_2num (a, b, answer);
+  try_2den (a, b, answer);
+}
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *a;
+    const char  *b;
+    int         answer;
+
+  } data[] = {
+
+    /* Note that the various derived checks in try_all() reduce the cases
+       that need to be given here.  */
+
+    /* some zeros */
+    {  "0",  "0", 0 },
+    {  "0",  "2", 0 },
+    {  "0",  "6", 0 },
+    {  "5",  "0", 0 },
+    { "24", "60", 0 },
+
+    /* (a/1) = 1, any a
+       In particular note (0/1)=1 so that (a/b)=(a mod b/b). */
+    { "0", "1", 1 },
+    { "1", "1", 1 },
+    { "2", "1", 1 },
+    { "3", "1", 1 },
+    { "4", "1", 1 },
+    { "5", "1", 1 },
+
+    /* (0/b) = 0, b != 1 */
+    { "0",  "3", 0 },
+    { "0",  "5", 0 },
+    { "0",  "7", 0 },
+    { "0",  "9", 0 },
+    { "0", "11", 0 },
+    { "0", "13", 0 },
+    { "0", "15", 0 },
+
+    /* (1/b) = 1 */
+    { "1",  "1", 1 },
+    { "1",  "3", 1 },
+    { "1",  "5", 1 },
+    { "1",  "7", 1 },
+    { "1",  "9", 1 },
+    { "1", "11", 1 },
+
+    /* (-1/b) = (-1)^((b-1)/2) which is -1 for b==3 mod 4 */
+    { "-1",  "1",  1 },
+    { "-1",  "3", -1 },
+    { "-1",  "5",  1 },
+    { "-1",  "7", -1 },
+    { "-1",  "9",  1 },
+    { "-1", "11", -1 },
+    { "-1", "13",  1 },
+    { "-1", "15", -1 },
+    { "-1", "17",  1 },
+    { "-1", "19", -1 },
+
+    /* (2/b) = (-1)^((b^2-1)/8) which is -1 for b==3,5 mod 8.
+       try_2num() will exercise multiple powers of 2 in the numerator.  */
+    { "2",  "1",  1 },
+    { "2",  "3", -1 },
+    { "2",  "5", -1 },
+    { "2",  "7",  1 },
+    { "2",  "9",  1 },
+    { "2", "11", -1 },
+    { "2", "13", -1 },
+    { "2", "15",  1 },
+    { "2", "17",  1 },
+
+    /* (-2/b) = (-1)^((b^2-1)/8)*(-1)^((b-1)/2) which is -1 for b==5,7mod8.
+       try_2num() will exercise multiple powers of 2 in the numerator, which
+       will test that the shift in mpz_si_kronecker() uses unsigned not
+       signed.  */
+    { "-2",  "1",  1 },
+    { "-2",  "3",  1 },
+    { "-2",  "5", -1 },
+    { "-2",  "7", -1 },
+    { "-2",  "9",  1 },
+    { "-2", "11",  1 },
+    { "-2", "13", -1 },
+    { "-2", "15", -1 },
+    { "-2", "17",  1 },
+
+    /* (a/2)=(2/a).
+       try_2den() will exercise multiple powers of 2 in the denominator. */
+    {  "3",  "2", -1 },
+    {  "5",  "2", -1 },
+    {  "7",  "2",  1 },
+    {  "9",  "2",  1 },
+    {  "11", "2", -1 },
+
+    /* Harriet Griffin, "Elementary Theory of Numbers", page 155, various
+       examples.  */
+    {   "2", "135",  1 },
+    { "135",  "19", -1 },
+    {   "2",  "19", -1 },
+    {  "19", "135",  1 },
+    { "173", "135",  1 },
+    {  "38", "135",  1 },
+    { "135", "173",  1 },
+    { "173",   "5", -1 },
+    {   "3",   "5", -1 },
+    {   "5", "173", -1 },
+    { "173",   "3", -1 },
+    {   "2",   "3", -1 },
+    {   "3", "173", -1 },
+    { "253",  "21",  1 },
+    {   "1",  "21",  1 },
+    {  "21", "253",  1 },
+    {  "21",  "11", -1 },
+    {  "-1",  "11", -1 },
+
+    /* Griffin page 147 */
+    {  "-1",  "17",  1 },
+    {   "2",  "17",  1 },
+    {  "-2",  "17",  1 },
+    {  "-1",  "89",  1 },
+    {   "2",  "89",  1 },
+
+    /* Griffin page 148 */
+    {  "89",  "11",  1 },
+    {   "1",  "11",  1 },
+    {  "89",   "3", -1 },
+    {   "2",   "3", -1 },
+    {   "3",  "89", -1 },
+    {  "11",  "89",  1 },
+    {  "33",  "89", -1 },
+
+    /* H. Davenport, "The Higher Arithmetic", page 65, the quadratic
+       residues and non-residues mod 19.  */
+    {  "1", "19",  1 },
+    {  "4", "19",  1 },
+    {  "5", "19",  1 },
+    {  "6", "19",  1 },
+    {  "7", "19",  1 },
+    {  "9", "19",  1 },
+    { "11", "19",  1 },
+    { "16", "19",  1 },
+    { "17", "19",  1 },
+    {  "2", "19", -1 },
+    {  "3", "19", -1 },
+    {  "8", "19", -1 },
+    { "10", "19", -1 },
+    { "12", "19", -1 },
+    { "13", "19", -1 },
+    { "14", "19", -1 },
+    { "15", "19", -1 },
+    { "18", "19", -1 },
+
+    /* Residues and non-residues mod 13 */
+    {  "0",  "13",  0 },
+    {  "1",  "13",  1 },
+    {  "2",  "13", -1 },
+    {  "3",  "13",  1 },
+    {  "4",  "13",  1 },
+    {  "5",  "13", -1 },
+    {  "6",  "13", -1 },
+    {  "7",  "13", -1 },
+    {  "8",  "13", -1 },
+    {  "9",  "13",  1 },
+    { "10",  "13",  1 },
+    { "11",  "13", -1 },
+    { "12",  "13",  1 },
+
+    /* various */
+    {  "5",   "7", -1 },
+    { "15",  "17",  1 },
+    { "67",  "89",  1 },
+
+    /* special values inducing a==b==1 at the end of jac_or_kron() */
+    { "0x10000000000000000000000000000000000000000000000001",
+      "0x10000000000000000000000000000000000000000000000003", 1 },
+
+    /* Test for previous bugs in jacobi_2. */
+    { "0x43900000000", "0x42400000439", -1 }, /* 32-bit limbs */
+    { "0x4390000000000000000", "0x4240000000000000439", -1 }, /* 64-bit limbs */
+
+    { "198158408161039063", "198158360916398807", -1 },
+
+    /* Some tests involving large quotients in the continued fraction
+       expansion. */
+    { "37200210845139167613356125645445281805",
+      "451716845976689892447895811408978421929", -1 },
+    { "67674091930576781943923596701346271058970643542491743605048620644676477275152701774960868941561652032482173612421015",
+      "4902678867794567120224500687210807069172039735", 0 },
+    { "2666617146103764067061017961903284334497474492754652499788571378062969111250584288683585223600172138551198546085281683283672592", "2666617146103764067061017961903284334497474492754652499788571378062969111250584288683585223600172138551198546085281683290481773", 1 },
+
+    /* Exercises the case asize == 1, btwos > 0 in mpz_jacobi. */
+    { "804609", "421248363205206617296534688032638102314410556521742428832362659824", 1 } ,
+    { "4190209", "2239744742177804210557442048984321017460028974602978995388383905961079286530650825925074203175536427000", 1 },
+
+    /* Exercises the case asize == 1, btwos = 63 in mpz_jacobi
+       (relevant when GMP_LIMB_BITS == 64). */
+    { "17311973299000934401", "1675975991242824637446753124775689449936871337036614677577044717424700351103148799107651171694863695242089956242888229458836426332300124417011114380886016", 1 },
+    { "3220569220116583677", "41859917623035396746", -1 },
+
+    /* Other test cases that triggered bugs during development. */
+    { "37200210845139167613356125645445281805", "340116213441272389607827434472642576514", -1 },
+    { "74400421690278335226712251290890563610", "451716845976689892447895811408978421929", -1 },
+  };
+
+  int    i;
+  mpz_t  a, b;
+
+  mpz_init (a);
+  mpz_init (b);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (b, data[i].b, 0);
+      try_all (a, b, data[i].answer);
+    }
+
+  mpz_clear (a);
+  mpz_clear (b);
+}
+
+
+/* (a^2/b)=1 if gcd(a,b)=1, or (a^2/b)=0 if gcd(a,b)!=1.
+   This includes when a=0 or b=0. */
+void
+check_squares_zi (void)
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t  a, b, g;
+  int    i, answer;
+  mp_size_t size_range, an, bn;
+  mpz_t bs;
+
+  mpz_init (bs);
+  mpz_init (a);
+  mpz_init (b);
+  mpz_init (g);
+
+  for (i = 0; i < 50; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + i/8 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      an = mpz_get_ui (bs);
+      mpz_rrandomb (a, rands, an);
+
+      mpz_urandomb (bs, rands, size_range);
+      bn = mpz_get_ui (bs);
+      mpz_rrandomb (b, rands, bn);
+
+      mpz_gcd (g, a, b);
+      if (mpz_cmp_ui (g, 1L) == 0)
+	answer = 1;
+      else
+	answer = 0;
+
+      mpz_mul (a, a, a);
+
+      try_all (a, b, answer);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (a);
+  mpz_clear (b);
+  mpz_clear (g);
+}
+
+
+/* Check the handling of asize==0, make sure it isn't affected by the low
+   limb. */
+void
+check_a_zero (void)
+{
+  mpz_t  a, b;
+
+  mpz_init_set_ui (a, 0);
+  mpz_init (b);
+
+  mpz_set_ui (b, 1L);
+  PTR(a)[0] = 0;
+  try_all (a, b, 1);   /* (0/1)=1 */
+  PTR(a)[0] = 1;
+  try_all (a, b, 1);   /* (0/1)=1 */
+
+  mpz_set_si (b, -1L);
+  PTR(a)[0] = 0;
+  try_all (a, b, 1);   /* (0/-1)=1 */
+  PTR(a)[0] = 1;
+  try_all (a, b, 1);   /* (0/-1)=1 */
+
+  mpz_set_ui (b, 0);
+  PTR(a)[0] = 0;
+  try_all (a, b, 0);   /* (0/0)=0 */
+  PTR(a)[0] = 1;
+  try_all (a, b, 0);   /* (0/0)=0 */
+
+  mpz_set_ui (b, 2);
+  PTR(a)[0] = 0;
+  try_all (a, b, 0);   /* (0/2)=0 */
+  PTR(a)[0] = 1;
+  try_all (a, b, 0);   /* (0/2)=0 */
+
+  mpz_clear (a);
+  mpz_clear (b);
+}
+
+
+/* Assumes that b = prod p_k^e_k */
+int
+ref_jacobi (mpz_srcptr a, mpz_srcptr b, unsigned nprime,
+	    mpz_t prime[], unsigned *exp)
+{
+  unsigned i;
+  int res;
+
+  for (i = 0, res = 1; i < nprime; i++)
+    if (exp[i])
+      {
+	int legendre = refmpz_legendre (a, prime[i]);
+	if (!legendre)
+	  return 0;
+	if (exp[i] & 1)
+	  res *= legendre;
+      }
+  return res;
+}
+
+void
+check_jacobi_factored (void)
+{
+#define PRIME_N 10
+#define PRIME_MAX_SIZE 50
+#define PRIME_MAX_EXP 4
+#define PRIME_A_COUNT 10
+#define PRIME_B_COUNT 5
+#define PRIME_MAX_B_SIZE 2000
+
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t prime[PRIME_N];
+  unsigned exp[PRIME_N];
+  mpz_t a, b, t, bs;
+  unsigned i;
+
+  mpz_init (a);
+  mpz_init (b);
+  mpz_init (t);
+  mpz_init (bs);
+
+  /* Generate primes */
+  for (i = 0; i < PRIME_N; i++)
+    {
+      mp_size_t size;
+      mpz_init (prime[i]);
+      mpz_urandomb (bs, rands, 32);
+      size = mpz_get_ui (bs) % PRIME_MAX_SIZE + 2;
+      mpz_rrandomb (prime[i], rands, size);
+      if (mpz_cmp_ui (prime[i], 3) <= 0)
+	mpz_set_ui (prime[i], 3);
+      else
+	mpz_nextprime (prime[i], prime[i]);
+    }
+
+  for (i = 0; i < PRIME_B_COUNT; i++)
+    {
+      unsigned j, k;
+      mp_bitcnt_t bsize;
+
+      mpz_set_ui (b, 1);
+      bsize = 1;
+
+      for (j = 0; j < PRIME_N && bsize < PRIME_MAX_B_SIZE; j++)
+	{
+	  mpz_urandomb (bs, rands, 32);
+	  exp[j] = mpz_get_ui (bs) % PRIME_MAX_EXP;
+	  mpz_pow_ui (t, prime[j], exp[j]);
+	  mpz_mul (b, b, t);
+	  bsize = mpz_sizeinbase (b, 2);
+	}
+      for (k = 0; k < PRIME_A_COUNT; k++)
+	{
+	  int answer;
+	  mpz_rrandomb (a, rands, bsize + 2);
+	  answer = ref_jacobi (a, b, j, prime, exp);
+	  try_all (a, b, answer);
+	}
+    }
+  for (i = 0; i < PRIME_N; i++)
+    mpz_clear (prime[i]);
+
+  mpz_clear (a);
+  mpz_clear (b);
+  mpz_clear (t);
+  mpz_clear (bs);
+
+#undef PRIME_N
+#undef PRIME_MAX_SIZE
+#undef PRIME_MAX_EXP
+#undef PRIME_A_COUNT
+#undef PRIME_B_COUNT
+#undef PRIME_MAX_B_SIZE
+}
+
+/* These tests compute (a|n), where the quotient sequence includes
+   large quotients, and n has a known factorization. Such inputs are
+   generated as follows. First, construct a large n, as a power of a
+   prime p of moderate size.
+
+   Next, compute a matrix from factors (q,1;1,0), with q chosen with
+   uniformly distributed size. We must stop with matrix elements of
+   roughly half the size of n. Denote elements of M as M = (m00, m01;
+   m10, m11).
+
+   We now look for solutions to
+
+     n = m00 x + m01 y
+     a = m10 x + m11 y
+
+   with x,y > 0. Since n >= m00 * m01, there exists a positive
+   solution to the first equation. Find those x, y, and substitute in
+   the second equation to get a. Then the quotient sequence for (a|n)
+   is precisely the quotients used when constructing M, followed by
+   the quotient sequence for (x|y).
+
+   Numbers should also be large enough that we exercise hgcd_jacobi,
+   which means that they should be larger than
+
+     max (GCD_DC_THRESHOLD, 3 * HGCD_THRESHOLD)
+
+   With an n of roughly 40000 bits, this should hold on most machines.
+*/
+
+void
+check_large_quotients (void)
+{
+#define COUNT 50
+#define PBITS 200
+#define PPOWER 201
+#define MAX_QBITS 500
+
+  gmp_randstate_ptr rands = RANDS;
+
+  mpz_t p, n, q, g, s, t, x, y, bs;
+  mpz_t M[2][2];
+  mp_bitcnt_t nsize;
+  unsigned i;
+
+  mpz_init (p);
+  mpz_init (n);
+  mpz_init (q);
+  mpz_init (g);
+  mpz_init (s);
+  mpz_init (t);
+  mpz_init (x);
+  mpz_init (y);
+  mpz_init (bs);
+  mpz_init (M[0][0]);
+  mpz_init (M[0][1]);
+  mpz_init (M[1][0]);
+  mpz_init (M[1][1]);
+
+  /* First generate a number with known factorization, as a random
+     smallish prime raised to an odd power. Then (a|n) = (a|p). */
+  mpz_rrandomb (p, rands, PBITS);
+  mpz_nextprime (p, p);
+  mpz_pow_ui (n, p, PPOWER);
+
+  nsize = mpz_sizeinbase (n, 2);
+
+  for (i = 0; i < COUNT; i++)
+    {
+      int answer;
+      mp_bitcnt_t msize;
+
+      mpz_set_ui (M[0][0], 1);
+      mpz_set_ui (M[0][1], 0);
+      mpz_set_ui (M[1][0], 0);
+      mpz_set_ui (M[1][1], 1);
+
+      for (msize = 1; 2*(msize + MAX_QBITS) + 1 < nsize ;)
+	{
+	  unsigned i;
+	  mpz_rrandomb (bs, rands, 32);
+	  mpz_rrandomb (q, rands, 1 + mpz_get_ui (bs) % MAX_QBITS);
+
+	  /* Multiply by (q, 1; 1,0) from the right */
+	  for (i = 0; i < 2; i++)
+	    {
+	      mp_bitcnt_t size;
+	      mpz_swap (M[i][0], M[i][1]);
+	      mpz_addmul (M[i][0], M[i][1], q);
+	      size = mpz_sizeinbase (M[i][0], 2);
+	      if (size > msize)
+		msize = size;
+	    }
+	}
+      mpz_gcdext (g, s, t, M[0][0], M[0][1]);
+      ASSERT_ALWAYS (mpz_cmp_ui (g, 1) == 0);
+
+      /* Solve n = M[0][0] * x + M[0][1] * y */
+      if (mpz_sgn (s) > 0)
+	{
+	  mpz_mul (x, n, s);
+	  mpz_fdiv_qr (q, x, x, M[0][1]);
+	  mpz_mul (y, q, M[0][0]);
+	  mpz_addmul (y, t, n);
+	  ASSERT_ALWAYS (mpz_sgn (y) > 0);
+	}
+      else
+	{
+	  mpz_mul (y, n, t);
+	  mpz_fdiv_qr (q, y, y, M[0][0]);
+	  mpz_mul (x, q, M[0][1]);
+	  mpz_addmul (x, s, n);
+	  ASSERT_ALWAYS (mpz_sgn (x) > 0);
+	}
+      mpz_mul (x, x, M[1][0]);
+      mpz_addmul (x, y, M[1][1]);
+
+      /* Now (x|n) has the selected large quotients */
+      answer = refmpz_legendre (x, p);
+      try_zi_zi (x, n, answer);
+    }
+  mpz_clear (p);
+  mpz_clear (n);
+  mpz_clear (q);
+  mpz_clear (g);
+  mpz_clear (s);
+  mpz_clear (t);
+  mpz_clear (x);
+  mpz_clear (y);
+  mpz_clear (bs);
+  mpz_clear (M[0][0]);
+  mpz_clear (M[0][1]);
+  mpz_clear (M[1][0]);
+  mpz_clear (M[1][1]);
+#undef COUNT
+#undef PBITS
+#undef PPOWER
+#undef MAX_QBITS
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  if (argc >= 2 && strcmp (argv[1], "-p") == 0)
+    {
+      option_pari = 1;
+
+      printf ("\
+try(a,b,answer) =\n\
+{\n\
+  if (kronecker(a,b) != answer,\n\
+    print(\"wrong at \", a, \",\", b,\n\
+      \" expected \", answer,\n\
+      \" pari says \", kronecker(a,b)))\n\
+}\n");
+    }
+
+  check_data ();
+  check_squares_zi ();
+  check_a_zero ();
+  check_jacobi_factored ();
+  check_large_quotients ();
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-lcm.c b/vendor/gmp-6.3.0/tests/mpz/t-lcm.c
new file mode 100644
index 0000000..1b45212
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-lcm.c
@@ -0,0 +1,184 @@
+/* Test mpz_lcm and mpz_lcm_ui.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_all (mpz_ptr want, mpz_srcptr x_orig, mpz_srcptr y_orig)
+{
+  mpz_t  got, x, y;
+  int    negx, negy, swap, inplace;
+
+  mpz_init (got);
+  mpz_init_set (x, x_orig);
+  mpz_init_set (y, y_orig);
+
+  for (swap = 0; swap < 2; swap++)
+    {
+      mpz_swap (x, y);
+
+      for (negx = 0; negx < 2; negx++)
+	{
+	  mpz_neg (x, x);
+
+	  for (negy = 0; negy < 2; negy++)
+	    {
+	      mpz_neg (y, y);
+
+	      for (inplace = 0; inplace <= 1; inplace++)
+		{
+		  if (inplace)
+		    { mpz_set (got, x); mpz_lcm (got, got, y); }
+		  else
+		    mpz_lcm (got, x, y);
+		  MPZ_CHECK_FORMAT (got);
+
+		  if (mpz_cmp (got, want) != 0)
+		    {
+		      printf ("mpz_lcm wrong, inplace=%d\n", inplace);
+		    fail:
+		      mpz_trace ("x", x);
+		      mpz_trace ("y", y);
+		      mpz_trace ("got", got);
+		      mpz_trace ("want", want);
+		      abort ();
+		    }
+
+		  if (mpz_fits_ulong_p (y))
+		    {
+		      unsigned long  yu = mpz_get_ui (y);
+		      if (inplace)
+			{ mpz_set (got, x); mpz_lcm_ui (got, got, yu); }
+		      else
+			mpz_lcm_ui (got, x, yu);
+
+		      if (mpz_cmp (got, want) != 0)
+			{
+			  printf ("mpz_lcm_ui wrong, inplace=%d\n", inplace);
+			  printf    ("yu=%lu\n", yu);
+			  goto fail;
+			}
+		    }
+		}
+	    }
+	}
+    }
+
+  mpz_clear (got);
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+
+void
+check_primes (void)
+{
+  static unsigned long  prime[] = {
+    2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,
+    101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,
+    191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,
+    281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,
+    389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,
+  };
+  mpz_t  want, x, y;
+  int    i;
+
+  mpz_init (want);
+  mpz_init (x);
+  mpz_init (y);
+
+  /* Check zeros. */
+  mpz_set_ui (want, 0);
+  mpz_set_ui (x, 1);
+  check_all (want, want, want);
+  check_all (want, want, x);
+  check_all (want, x, want);
+
+  /* New prime each time. */
+  mpz_set_ui (want, 1L);
+  for (i = 0; i < numberof (prime); i++)
+    {
+      mpz_set (x, want);
+      mpz_set_ui (y, prime[i]);
+      mpz_mul_ui (want, want, prime[i]);
+      check_all (want, x, y);
+    }
+
+  /* Old prime each time. */
+  mpz_set (x, want);
+  for (i = 0; i < numberof (prime); i++)
+    {
+      mpz_set_ui (y, prime[i]);
+      check_all (want, x, y);
+    }
+
+  /* One old, one new each time. */
+  mpz_set_ui (want, prime[0]);
+  for (i = 1; i < numberof (prime); i++)
+    {
+      mpz_set (x, want);
+      mpz_set_ui (y, prime[i] * prime[i-1]);
+      mpz_mul_ui (want, want, prime[i]);
+      check_all (want, x, y);
+    }
+
+  /* Triplets with A,B in x and B,C in y. */
+  mpz_set_ui (want, 1L);
+  mpz_set_ui (x, 1L);
+  mpz_set_ui (y, 1L);
+  for (i = 0; i+2 < numberof (prime); i += 3)
+    {
+      mpz_mul_ui (want, want, prime[i]);
+      mpz_mul_ui (want, want, prime[i+1]);
+      mpz_mul_ui (want, want, prime[i+2]);
+
+      mpz_mul_ui (x, x, prime[i]);
+      mpz_mul_ui (x, x, prime[i+1]);
+
+      mpz_mul_ui (y, y, prime[i+1]);
+      mpz_mul_ui (y, y, prime[i+2]);
+
+      check_all (want, x, y);
+    }
+
+
+  mpz_clear (want);
+  mpz_clear (x);
+  mpz_clear (y);
+}
+
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_primes ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-limbs.c b/vendor/gmp-6.3.0/tests/mpz/t-limbs.c
new file mode 100644
index 0000000..6526e92
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-limbs.c
@@ -0,0 +1,232 @@
+/* Test mpz_limbs_* functions
+
+Copyright 2013 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#define COUNT 100
+#define BITSIZE 500
+
+/* Like mpz_add. For simplicity, support positive inputs only. */
+static void
+alt_add (mpz_ptr r, mpz_srcptr a, mpz_srcptr b)
+{
+  mp_size_t an = mpz_size (a);
+  mp_size_t bn = mpz_size (b);
+  mp_ptr rp;
+
+  ASSERT (an > 0);
+  ASSERT (bn > 0);
+  if (an < bn)
+    {
+      MP_SIZE_T_SWAP (an, bn);
+      MPZ_SRCPTR_SWAP (a, b);
+    }
+  rp = mpz_limbs_modify (r, an + 1);
+  rp[an] = mpn_add (rp, mpz_limbs_read (a), an, mpz_limbs_read (b), bn);
+  mpz_limbs_finish (r, an + 1);
+}
+
+static void
+check_funcs (const char *name,
+	     void (*f)(mpz_ptr, mpz_srcptr, mpz_srcptr),
+	     void (*ref_f)(mpz_ptr, mpz_srcptr, mpz_srcptr),
+	     mpz_srcptr a, mpz_srcptr b)
+{
+  mpz_t r, ref;
+  mpz_inits (r, ref, NULL);
+
+  ref_f (ref, a, b);
+  MPZ_CHECK_FORMAT (ref);
+  f (r, a, b);
+  MPZ_CHECK_FORMAT (r);
+
+  if (mpz_cmp (r, ref) != 0)
+    {
+      printf ("%s failed, abits %u, bbits %u\n",
+	      name,
+	      (unsigned) mpz_sizeinbase (a, 2),
+	      (unsigned) mpz_sizeinbase (b, 2));
+      gmp_printf ("a = %Zx\n", a);
+      gmp_printf ("b = %Zx\n", b);
+      gmp_printf ("r = %Zx (bad)\n", r);
+      gmp_printf ("ref = %Zx\n", ref);
+      abort ();
+    }
+  mpz_clears (r, ref, NULL);
+}
+
+static void
+check_add (void)
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t bs, a, b;
+  unsigned i;
+  mpz_inits (bs, a, b, NULL);
+  for (i = 0; i < COUNT; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      mpz_rrandomb (a, rands, 1 + mpz_get_ui (bs) % BITSIZE);
+      mpz_urandomb (bs, rands, 32);
+      mpz_rrandomb (b, rands, 1 + mpz_get_ui (bs) % BITSIZE);
+
+      check_funcs ("add", alt_add, mpz_add, a, b);
+    }
+  mpz_clears (bs, a, b, NULL);
+}
+
+static void
+alt_mul (mpz_ptr r, mpz_srcptr a, mpz_srcptr b)
+{
+  mp_size_t an = mpz_size (a);
+  mp_size_t bn = mpz_size (b);
+  mp_srcptr ap, bp;
+  TMP_DECL;
+
+  TMP_MARK;
+
+  ASSERT (an > 0);
+  ASSERT (bn > 0);
+  if (an < bn)
+    {
+      MP_SIZE_T_SWAP (an, bn);
+      MPZ_SRCPTR_SWAP (a, b);
+    }
+  /* NOTE: This copying seems unnecessary; better to allocate new
+     result area, and free the old area when done. */
+  if (r == a)
+    {
+      mp_ptr tp =  TMP_ALLOC_LIMBS (an);
+      MPN_COPY (tp, mpz_limbs_read (a), an);
+      ap = tp;
+      bp = (a == b) ? ap : mpz_limbs_read (b);
+    }
+  else if (r == b)
+    {
+      mp_ptr tp = TMP_ALLOC_LIMBS (bn);
+      MPN_COPY (tp, mpz_limbs_read (b), bn);
+      bp = tp;
+      ap = mpz_limbs_read (a);
+    }
+  else
+    {
+      ap = mpz_limbs_read (a);
+      bp = mpz_limbs_read (b);
+    }
+  mpn_mul (mpz_limbs_write (r, an + bn),
+	   ap, an, bp, bn);
+
+  mpz_limbs_finish (r, an + bn);
+}
+
+void
+check_mul (void)
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t bs, a, b;
+  unsigned i;
+  mpz_inits (bs, a, b, NULL);
+  for (i = 0; i < COUNT; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      mpz_rrandomb (a, rands, 1 + mpz_get_ui (bs) % BITSIZE);
+      mpz_urandomb (bs, rands, 32);
+      mpz_rrandomb (b, rands, 1 + mpz_get_ui (bs) % BITSIZE);
+
+      check_funcs ("mul", alt_mul, mpz_mul, a, b);
+    }
+  mpz_clears (bs, a, b, NULL);
+}
+
+#define MAX_SIZE 100
+
+static void
+check_roinit (void)
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t bs, a, b, r, ref;
+  unsigned i;
+
+  mpz_inits (bs, a, b, r, ref, NULL);
+
+  for (i = 0; i < COUNT; i++)
+    {
+      mp_srcptr ap, bp;
+      mp_size_t an, bn;
+      mpz_urandomb (bs, rands, 32);
+      mpz_rrandomb (a, rands, 1 + mpz_get_ui (bs) % BITSIZE);
+      mpz_urandomb (bs, rands, 32);
+      mpz_rrandomb (b, rands, 1 + mpz_get_ui (bs) % BITSIZE);
+
+      an = mpz_size (a);
+      ap = mpz_limbs_read (a);
+      bn = mpz_size (b);
+      bp = mpz_limbs_read (b);
+
+      mpz_add (ref, a, b);
+      {
+	mpz_t a1, b1;
+#if __STDC_VERSION__ >= 199901
+	const mpz_t a2 = MPZ_ROINIT_N ( (mp_ptr) ap, an);
+	const mpz_t b2 = MPZ_ROINIT_N ( (mp_ptr) bp, bn);
+
+	mpz_set_ui (r, 0);
+	mpz_add (r, a2, b2);
+	if (mpz_cmp (r, ref) != 0)
+	  {
+	    printf ("MPZ_ROINIT_N failed\n");
+	    gmp_printf ("a = %Zx\n", a);
+	    gmp_printf ("b = %Zx\n", b);
+	    gmp_printf ("r = %Zx (bad)\n", r);
+	    gmp_printf ("ref = %Zx\n", ref);
+	    abort ();
+	  }
+#endif
+	mpz_set_ui (r, 0);
+	mpz_add (r, mpz_roinit_n (a1, ap, an), mpz_roinit_n (b1, bp, bn));
+	if (mpz_cmp (r, ref) != 0)
+	  {
+	    printf ("mpz_roinit_n failed\n");
+	    gmp_printf ("a = %Zx\n", a);
+	    gmp_printf ("b = %Zx\n", b);
+	    gmp_printf ("r = %Zx (bad)\n", r);
+	    gmp_printf ("ref = %Zx\n", ref);
+	    abort ();
+	  }
+      }
+    }
+  mpz_clears (bs, a, b, r, ref, NULL);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+  tests_end ();
+
+  check_add ();
+  check_mul ();
+  check_roinit ();
+
+  return 0;
+
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-lucm.c b/vendor/gmp-6.3.0/tests/mpz/t-lucm.c
new file mode 100644
index 0000000..24be85b
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-lucm.c
@@ -0,0 +1,144 @@
+/* Test mpz_powm, mpz_lucas_mod.
+
+Copyright 1991, 1993, 1994, 1996, 1999-2001, 2009, 2012, 2018 Free Software
+Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void debug_mp (mpz_t, int);
+
+#define SIZEM 8
+
+/* FIXME: Should we implement another sequence to test lucas mod?	*/
+/* Eg: a generalisation of what we use for Fibonacci:	*/
+/* U_{2n-1} = U_n^2 - Q*U_{n-1}^2	*/
+/* U_{2n+1} = D*U_n^2  + Q*U_{2n-1} + 2*Q^n ; whith D = (P^2-4*Q)	*/
+/* P*U_{2n} = U_{2n+1} + Q*U_{2n-1}	*/
+
+int
+main (int argc, char **argv)
+{
+  mpz_t base, exp, mod;
+  mpz_t r1, r2, t1, t2;
+  mp_size_t exp_size, mod_size;
+  int i, res;
+  int reps = 1000;
+  long Q;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (base);
+  mpz_init (exp);
+  mpz_init (mod);
+  mpz_init (r1);
+  mpz_init (r2);
+  mpz_init (t1);
+  mpz_init (t2);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % SIZEM + 1;
+
+      do  /* Loop until base >= 2 and fits in a long.  */
+	{
+	  mpz_urandomb (base, rands, BITS_PER_ULONG - 2);
+	}
+      while (mpz_cmp_ui (base, 2) < 0 || mpz_fits_slong_p (base) == 0);
+
+      Q = mpz_get_ui (base);
+
+      do
+        {
+	  ++size_range;
+	  size_range = MIN (size_range, SIZEM);
+	  mpz_urandomb (bs, rands, size_range);
+	  mod_size = mpz_get_ui (bs);
+	  mpz_rrandomb (mod, rands, mod_size);
+	  mpz_add_ui (mod, mod, 16);
+	}
+      while (mpz_gcd_ui (NULL, mod, Q) != 1);
+
+      mod_size = mpz_sizeinbase (mod, 2) - 3;
+      mpz_urandomb (bs, rands, 32);
+      exp_size = mpz_get_ui (bs) % mod_size + 2;
+
+      mpz_tdiv_q_2exp (exp, mod, exp_size);
+      mpz_add_ui (exp, exp, 1);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	{
+	  mpz_neg (base, base);
+	  Q = -Q;
+	}
+
+      res = mpz_lucas_mod (t1, r2, Q, exp_size, mod, t2, r1);
+      if (res && ++reps)
+	continue;
+      MPZ_CHECK_FORMAT (r2);
+      if (mpz_cmp_ui (r2, 0) < 0)
+	mpz_add (r2, r2, mod);
+      mpz_powm (r1, base, exp, mod);
+
+      if (mpz_cmp (r1, r2) != 0)
+	{
+	  fprintf (stderr, "\nIncorrect results in test %d for operands:\n", i);
+	  debug_mp (base, -16);
+	  debug_mp (exp, -16);
+	  debug_mp (mod, -16);
+	  fprintf (stderr, "mpz_powm result:\n");
+	  debug_mp (r1, -16);
+	  fprintf (stderr, "mpz_lucas_mod result (%d) Q=%ld:\n", res, Q);
+	  debug_mp (r2, -16);
+	  abort ();
+	}
+    }
+
+  mpz_clear (bs);
+  mpz_clear (base);
+  mpz_clear (exp);
+  mpz_clear (mod);
+  mpz_clear (r1);
+  mpz_clear (r2);
+  mpz_clear (t1);
+  mpz_clear (t2);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-lucnum_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-lucnum_ui.c
new file mode 100644
index 0000000..34c4315
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-lucnum_ui.c
@@ -0,0 +1,96 @@
+/* Test mpz_lucnum_ui and mpz_lucnum2_ui.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Usage: t-lucnum_ui [n]
+
+   Test up to L[n], or if n is omitted then the default limit below.  A
+   literal "x" for the limit means continue forever, this being meant only
+   for development.  */
+
+
+void
+check_sequence (int argc, char *argv[])
+{
+  unsigned long  n;
+  unsigned long  limit = 100 * GMP_LIMB_BITS;
+  mpz_t          want_ln, want_ln1, got_ln, got_ln1;
+
+  if (argc > 1 && argv[1][0] == 'x')
+    limit = ULONG_MAX;
+  else
+    TESTS_REPS (limit, argv, argc);
+
+  /* start at n==0 */
+  mpz_init_set_si (want_ln1, -1); /* L[-1] */
+  mpz_init_set_ui (want_ln,  2);  /* L[0]   */
+  mpz_init (got_ln);
+  mpz_init (got_ln1);
+
+  for (n = 0; n < limit; n++)
+    {
+      mpz_lucnum2_ui (got_ln, got_ln1, n);
+      MPZ_CHECK_FORMAT (got_ln);
+      MPZ_CHECK_FORMAT (got_ln1);
+      if (mpz_cmp (got_ln, want_ln) != 0 || mpz_cmp (got_ln1, want_ln1) != 0)
+        {
+          printf ("mpz_lucnum2_ui(%lu) wrong\n", n);
+          mpz_trace ("want ln ", want_ln);
+          mpz_trace ("got  ln ",  got_ln);
+          mpz_trace ("want ln1", want_ln1);
+          mpz_trace ("got  ln1",  got_ln1);
+          abort ();
+        }
+
+      mpz_lucnum_ui (got_ln, n);
+      MPZ_CHECK_FORMAT (got_ln);
+      if (mpz_cmp (got_ln, want_ln) != 0)
+        {
+          printf ("mpz_lucnum_ui(%lu) wrong\n", n);
+          mpz_trace ("want ln", want_ln);
+          mpz_trace ("got  ln", got_ln);
+          abort ();
+        }
+
+      mpz_add (want_ln1, want_ln1, want_ln);  /* L[n+1] = L[n] + L[n-1] */
+      mpz_swap (want_ln1, want_ln);
+    }
+
+  mpz_clear (want_ln);
+  mpz_clear (want_ln1);
+  mpz_clear (got_ln);
+  mpz_clear (got_ln1);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_sequence (argc, argv);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-mfac_uiui.c b/vendor/gmp-6.3.0/tests/mpz/t-mfac_uiui.c
new file mode 100644
index 0000000..8bca2d7
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-mfac_uiui.c
@@ -0,0 +1,135 @@
+/* Exercise mpz_mfac_uiui.
+
+Copyright 2000-2002, 2012 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Usage: t-mfac_uiui [x|num]
+
+   With no arguments testing goes up to the initial value of "limit" below.
+   With a number argument tests are carried that far, or with a literal "x"
+   tests are continued without limit (this being meant only for development
+   purposes).  */
+
+#define MULTIFAC_WHEEL (2*3*11)
+#define MULTIFAC_WHEEL2 (5*13)
+
+int
+main (int argc, char *argv[])
+{
+  mpz_t ref[MULTIFAC_WHEEL], ref2[MULTIFAC_WHEEL2], res;
+  unsigned long n, j, m, m2;
+  unsigned long limit = 2222, step = 1;
+
+  tests_start ();
+
+  if (argc > 1 && argv[1][0] == 'x')
+    limit = ULONG_MAX;
+  else
+    TESTS_REPS (limit, argv, argc);
+
+  /* for small limb testing */
+  limit = MIN (limit, MP_LIMB_T_MAX);
+
+  for (m = 0; m < MULTIFAC_WHEEL; m++)
+    mpz_init_set_ui(ref [m],1);
+  for (m2 = 0; m2 < MULTIFAC_WHEEL2; m2++)
+    mpz_init_set_ui(ref2 [m2],1);
+
+  mpz_init (res);
+
+  m = 0;
+  m2 = 0;
+  for (n = 0; n <= limit;)
+    {
+      mpz_mfac_uiui (res, n, MULTIFAC_WHEEL);
+      MPZ_CHECK_FORMAT (res);
+      if (mpz_cmp (ref[m], res) != 0)
+        {
+          printf ("mpz_mfac_uiui(%lu,%d) wrong\n", n, MULTIFAC_WHEEL);
+          printf ("  got  "); mpz_out_str (stdout, 10, res); printf("\n");
+          printf ("  want "); mpz_out_str (stdout, 10, ref[m]); printf("\n");
+          abort ();
+        }
+      mpz_mfac_uiui (res, n, MULTIFAC_WHEEL2);
+      MPZ_CHECK_FORMAT (res);
+      if (mpz_cmp (ref2[m2], res) != 0)
+        {
+          printf ("mpz_mfac_uiui(%lu,%d) wrong\n", n, MULTIFAC_WHEEL2);
+          printf ("  got  "); mpz_out_str (stdout, 10, res); printf("\n");
+          printf ("  want "); mpz_out_str (stdout, 10, ref2[m2]); printf("\n");
+          abort ();
+        }
+      if (n + step <= limit)
+	for (j = 0; j < step; j++) {
+	  n++; m++; m2++;
+	  if (m >= MULTIFAC_WHEEL) m -= MULTIFAC_WHEEL;
+	  if (m2 >= MULTIFAC_WHEEL2) m2 -= MULTIFAC_WHEEL2;
+	  mpz_mul_ui (ref[m], ref[m], n); /* Compute a reference, with current library */
+	  mpz_mul_ui (ref2[m2], ref2[m2], n); /* Compute a reference, with current library */
+	}
+      else n += step;
+    }
+  mpz_fac_ui (ref[0], n);
+  mpz_mfac_uiui (res, n, 1);
+  MPZ_CHECK_FORMAT (res);
+  if (mpz_cmp (ref[0], res) != 0)
+    {
+      printf ("mpz_mfac_uiui(%lu,1) wrong\n", n);
+      printf ("  got  "); mpz_out_str (stdout, 10, res); printf("\n");
+      printf ("  want "); mpz_out_str (stdout, 10, ref[0]); printf("\n");
+      abort ();
+    }
+
+  mpz_2fac_ui (ref[0], n);
+  mpz_mfac_uiui (res, n, 2);
+  MPZ_CHECK_FORMAT (res);
+  if (mpz_cmp (ref[0], res) != 0)
+    {
+      printf ("mpz_mfac_uiui(%lu,1) wrong\n", n);
+      printf ("  got  "); mpz_out_str (stdout, 10, res); printf("\n");
+      printf ("  want "); mpz_out_str (stdout, 10, ref[0]); printf("\n");
+      abort ();
+    }
+
+  n++;
+  mpz_2fac_ui (ref[0], n);
+  mpz_mfac_uiui (res, n, 2);
+  MPZ_CHECK_FORMAT (res);
+  if (mpz_cmp (ref[0], res) != 0)
+    {
+      printf ("mpz_mfac_uiui(%lu,2) wrong\n", n);
+      printf ("  got  "); mpz_out_str (stdout, 10, res); printf("\n");
+      printf ("  want "); mpz_out_str (stdout, 10, ref[0]); printf("\n");
+      abort ();
+    }
+
+  for (m = 0; m < MULTIFAC_WHEEL; m++)
+    mpz_clear (ref[m]);
+  for (m2 = 0; m2 < MULTIFAC_WHEEL2; m2++)
+    mpz_clear (ref2[m2]);
+  mpz_clear (res);
+
+  tests_end ();
+
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-mul.c b/vendor/gmp-6.3.0/tests/mpz/t-mul.c
new file mode 100644
index 0000000..0dc22e9
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-mul.c
@@ -0,0 +1,221 @@
+/* Test mpz_cmp, mpz_mul.
+
+Copyright 1991, 1993, 1994, 1996, 1997, 2000-2004 Free Software Foundation,
+Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "longlong.h"
+#include "tests.h"
+
+void debug_mp (mpz_t);
+static void refmpz_mul (mpz_t, const mpz_t, const mpz_t);
+void dump_abort (int, const char *, mpz_t, mpz_t, mpz_t, mpz_t);
+
+#define FFT_MIN_BITSIZE 100000
+
+char *extra_fft;
+
+void
+one (int i, mpz_t multiplicand, mpz_t multiplier)
+{
+  mpz_t product, ref_product;
+
+  mpz_init (product);
+  mpz_init (ref_product);
+
+  /* Test plain multiplication comparing results against reference code.  */
+  mpz_mul (product, multiplier, multiplicand);
+  refmpz_mul (ref_product, multiplier, multiplicand);
+  if (mpz_cmp (product, ref_product))
+    dump_abort (i, "incorrect plain product",
+		multiplier, multiplicand, product, ref_product);
+
+  /* Test squaring, comparing results against plain multiplication  */
+  mpz_mul (product, multiplier, multiplier);
+  mpz_set (multiplicand, multiplier);
+  mpz_mul (ref_product, multiplier, multiplicand);
+  if (mpz_cmp (product, ref_product))
+    dump_abort (i, "incorrect square product",
+		multiplier, multiplier, product, ref_product);
+
+  mpz_clear (product);
+  mpz_clear (ref_product);
+}
+
+int
+main (int argc, char **argv)
+{
+  mpz_t op1, op2;
+  int i;
+  int fft_max_2exp;
+
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range, fsize_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  extra_fft = getenv ("GMP_CHECK_FFT");
+  fft_max_2exp = 0;
+  if (extra_fft != NULL)
+    {
+      fft_max_2exp = atoi (extra_fft);
+      printf ("GMP_CHECK_FFT=%d (include this in bug reports)\n", fft_max_2exp);
+    }
+
+  if (fft_max_2exp <= 1)	/* compat with old use of GMP_CHECK_FFT */
+    fft_max_2exp = 22;		/* default limit, good for any machine */
+
+  mpz_init (bs);
+  mpz_init (op1);
+  mpz_init (op2);
+
+  fsize_range = 4 << 8;		/* a fraction 1/256 of size_range */
+  for (i = 0;; i++)
+    {
+      size_range = fsize_range >> 8;
+      fsize_range = fsize_range * 33 / 32;
+
+      if (size_range > fft_max_2exp)
+	break;
+
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (op1, rands, mpz_get_ui (bs));
+      if (i & 1)
+	mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (op2, rands, mpz_get_ui (bs));
+
+      mpz_urandomb (bs, rands, 4);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 0x3) == 0)
+	mpz_neg (op1, op1);
+      if ((bsi & 0xC) == 0)
+	mpz_neg (op2, op2);
+
+      /* printf ("%d %d\n", SIZ (op1), SIZ (op2)); */
+      one (i, op2, op1);
+    }
+
+  for (i = -50; i < 0; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % fft_max_2exp;
+
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (op1, rands, mpz_get_ui (bs) + FFT_MIN_BITSIZE);
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (op2, rands, mpz_get_ui (bs) + FFT_MIN_BITSIZE);
+
+      /* printf ("%d: %d %d\n", i, SIZ (op1), SIZ (op2)); */
+      fflush (stdout);
+      one (-1, op2, op1);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (op1);
+  mpz_clear (op2);
+
+  tests_end ();
+  exit (0);
+}
+
+static void
+refmpz_mul (mpz_t w, const mpz_t u, const mpz_t v)
+{
+  mp_size_t usize = u->_mp_size;
+  mp_size_t vsize = v->_mp_size;
+  mp_size_t wsize;
+  mp_size_t sign_product;
+  mp_ptr up, vp;
+  mp_ptr wp;
+  mp_size_t talloc;
+
+  sign_product = usize ^ vsize;
+  usize = ABS (usize);
+  vsize = ABS (vsize);
+
+  if (usize == 0 || vsize == 0)
+    {
+      SIZ (w) = 0;
+      return;
+    }
+
+  talloc = usize + vsize;
+
+  up = u->_mp_d;
+  vp = v->_mp_d;
+
+  wp = __GMP_ALLOCATE_FUNC_LIMBS (talloc);
+
+  if (usize > vsize)
+    refmpn_mul (wp, up, usize, vp, vsize);
+  else
+    refmpn_mul (wp, vp, vsize, up, usize);
+  wsize = usize + vsize;
+  wsize -= wp[wsize - 1] == 0;
+  MPZ_REALLOC (w, wsize);
+  MPN_COPY (PTR(w), wp, wsize);
+
+  SIZ(w) = sign_product < 0 ? -wsize : wsize;
+  __GMP_FREE_FUNC_LIMBS (wp, talloc);
+}
+
+void
+dump_abort (int i, const char *s,
+            mpz_t op1, mpz_t op2, mpz_t product, mpz_t ref_product)
+{
+  mp_size_t b, e;
+  fprintf (stderr, "ERROR: %s in test %d\n", s, i);
+  fprintf (stderr, "op1          = "); debug_mp (op1);
+  fprintf (stderr, "op2          = "); debug_mp (op2);
+  fprintf (stderr, "    product  = "); debug_mp (product);
+  fprintf (stderr, "ref_product  = "); debug_mp (ref_product);
+  for (b = 0; b < ABSIZ(ref_product); b++)
+    if (PTR(ref_product)[b] != PTR(product)[b])
+      break;
+  for (e = ABSIZ(ref_product) - 1; e >= 0; e--)
+    if (PTR(ref_product)[e] != PTR(product)[e])
+      break;
+  printf ("ERRORS in %ld--%ld\n", b, e);
+  abort();
+}
+
+void
+debug_mp (mpz_t x)
+{
+  size_t siz = mpz_sizeinbase (x, 16);
+
+  if (siz > 65)
+    {
+      mpz_t q;
+      mpz_init (q);
+      mpz_tdiv_q_2exp (q, x, 4 * (mpz_sizeinbase (x, 16) - 25));
+      gmp_fprintf (stderr, "%ZX...", q);
+      mpz_tdiv_r_2exp (q, x, 4 * 25);
+      gmp_fprintf (stderr, "%025ZX [%d]\n", q, (int) siz);
+      mpz_clear (q);
+    }
+  else
+    {
+      gmp_fprintf (stderr, "%ZX\n", x);
+    }
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-mul_i.c b/vendor/gmp-6.3.0/tests/mpz/t-mul_i.c
new file mode 100644
index 0000000..5f2dae2
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-mul_i.c
@@ -0,0 +1,134 @@
+/* Test mpz_mul_ui and mpz_mul_si.
+
+Copyright 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+mpz_t got, want, x;
+
+void
+compare_si (long y)
+{
+  if (mpz_cmp (got, want) != 0)
+    {
+      printf    ("mpz_mul_si wrong\n");
+      mpz_trace ("  x", x);
+      printf    ("  y=%ld (0x%lX)\n", y, y);
+      mpz_trace ("  got ", got);
+      mpz_trace ("  want", want);
+      abort ();
+    }
+}
+
+void
+compare_ui (unsigned long y)
+{
+  if (mpz_cmp (got, want) != 0)
+    {
+      printf    ("mpz_mul_ui wrong\n");
+      mpz_trace ("  x", x);
+      printf    ("  y=%lu (0x%lX)\n", y, y);
+      mpz_trace ("  got ", got);
+      mpz_trace ("  want", want);
+      abort ();
+    }
+}
+
+void
+check_samples (void)
+{
+  {
+    long  y;
+
+    mpz_set_ui (x, 1L);
+    y = 0;
+    mpz_mul_si (got, x, y);
+    mpz_set_si (want, y);
+    compare_si (y);
+
+    mpz_set_ui (x, 1L);
+    y = 1;
+    mpz_mul_si (got, x, y);
+    mpz_set_si (want, y);
+    compare_si (y);
+
+    mpz_set_ui (x, 1L);
+    y = -1;
+    mpz_mul_si (got, x, y);
+    mpz_set_si (want, y);
+    compare_si (y);
+
+    mpz_set_ui (x, 1L);
+    y = LONG_MIN;
+    mpz_mul_si (got, x, y);
+    mpz_set_si (want, y);
+    compare_si (y);
+
+    mpz_set_ui (x, 1L);
+    y = LONG_MAX;
+    mpz_mul_si (got, x, y);
+    mpz_set_si (want, y);
+    compare_si (y);
+  }
+
+  {
+    unsigned long y;
+
+    mpz_set_ui (x, 1L);
+    y = 0;
+    mpz_mul_ui (got, x, y);
+    mpz_set_ui (want, y);
+    compare_ui (y);
+
+    mpz_set_ui (x, 1L);
+    y = 1;
+    mpz_mul_ui (got, x, y);
+    mpz_set_ui (want, y);
+    compare_ui (y);
+
+    mpz_set_ui (x, 1L);
+    y = ULONG_MAX;
+    mpz_mul_ui (got, x, y);
+    mpz_set_ui (want, y);
+    compare_ui (y);
+  }
+}
+
+int
+main (int argc, char **argv)
+{
+  tests_start ();
+
+  mpz_init (x);
+  mpz_init (got);
+  mpz_init (want);
+
+  check_samples ();
+
+  mpz_clear (x);
+  mpz_clear (got);
+  mpz_clear (want);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-nextprime.c b/vendor/gmp-6.3.0/tests/mpz/t-nextprime.c
new file mode 100644
index 0000000..d2fbaef
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-nextprime.c
@@ -0,0 +1,459 @@
+/* Test mpz_nextprime.
+
+Copyright 2009, 2015, 2018, 2020 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void
+refmpz_nextprime (mpz_ptr p, mpz_srcptr t)
+{
+  mpz_add_ui (p, t, 1L);
+  while (! mpz_probab_prime_p (p, 10))
+    mpz_add_ui (p, p, 1L);
+}
+
+void
+refmpz_prevprime (mpz_ptr p, mpz_srcptr t)
+{
+  if (mpz_cmp_ui(t, 2) <= 0)
+    return;
+
+  mpz_sub_ui (p, t, 1L);
+  while (! mpz_probab_prime_p (p, 10))
+    mpz_sub_ui (p, p, 1L);
+}
+
+void
+test_largegap (mpz_t low, const int gap)
+{
+  mpz_t t, nxt;
+  mpz_init (t);
+  mpz_init (nxt);
+
+  mpz_nextprime(nxt, low);
+  mpz_sub(t, nxt, low);
+
+  if (mpz_cmp_ui(t, gap) != 0)
+     {
+      gmp_printf ("nextprime gap %Zd => %Zd != %d\n", low, nxt, gap);
+      abort ();
+    }
+
+  mpz_prevprime(t, nxt);
+  if (mpz_cmp(t, low) != 0)
+    {
+      gmp_printf ("prevprime gap %Zd => %Zd != %d\n", nxt, t, gap);
+      abort ();
+    }
+
+  mpz_clear (t);
+  mpz_clear (nxt);
+}
+
+void
+test_largegaps ()
+{
+  mpz_t n;
+
+  mpz_init (n);
+
+  // largest gap with start < 2^32.
+  mpz_set_str (n, "3842610773", 10);
+  test_largegap (n, 336);
+
+  // largest gap with start < 2^64.
+  mpz_set_str (n, "18361375334787046697", 10);
+  test_largegap (n, 1550);
+
+  // test high merit primegap in the P30 digit range.
+  mpz_set_str (n, "3001549619028223830552751967", 10);
+  test_largegap (n, 2184);
+
+  // test high merit primegap in the P100 range.
+  mpz_primorial_ui (n, 257);
+  mpz_divexact_ui (n, n, 5610);
+  mpz_mul_ui (n, n, 4280516017UL);
+  mpz_sub_ui (n, n, 2560);
+  test_largegap (n, 9006);
+
+  // test high merit primegap in the P200 range.
+  mpz_primorial_ui (n, 409);
+  mpz_divexact_ui (n, n, 30);
+  mpz_mul_ui (n, n, 3483347771UL);
+  mpz_sub_ui (n, n, 7016);
+  test_largegap (n, 15900);
+
+  mpz_clear (n);
+}
+
+void
+test_bitboundaries ()
+{
+  mpz_t n;
+  mpz_init (n);
+
+  mpz_set_str (n, "0xfff1", 0);
+  test_largegap (n, 16);
+
+  mpz_set_str (n, "0xfffffffb", 0);
+  test_largegap (n, 20);
+
+  mpz_set_str (n, "0xffffffffffc5", 0);
+  test_largegap (n, 80);
+
+  mpz_set_str (n, "0xffffffffffffffc5", 0);
+  test_largegap (n, 72);
+
+  mpz_set_str (n, "0xffffffffffffffffffbf", 0);
+  test_largegap (n, 78);
+
+  mpz_set_str (n, "0xffffffffffffffffffffffef", 0);
+  test_largegap (n, 78);
+
+  mpz_set_str (n, "0xffffffffffffffffffffffffffb5", 0);
+  test_largegap (n, 100);
+
+  mpz_set_str (n, "0xffffffffffffffffffffffffffffff61", 0);
+  test_largegap (n, 210);
+
+  mpz_set_str (n, "0xffffffffffffffffffffffffffffffffffffffffffffff13", 0);
+  test_largegap (n, 370);
+
+  mpz_clear (n);
+}
+
+void
+run (const char *start, int reps, const char *end, short diffs[])
+{
+  mpz_t x, y;
+  int i;
+
+  mpz_init_set_str (x, start, 0);
+  mpz_init (y);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_nextprime (y, x);
+      mpz_sub (x, y, x);
+      if (diffs != NULL &&
+	  (! mpz_fits_sshort_p (x) || diffs[i] != (short) mpz_get_ui (x)))
+	{
+	  gmp_printf ("diff list discrepancy\n");
+	  abort ();
+	}
+      mpz_swap (x, y);
+    }
+
+  mpz_set_str (y, end, 0);
+
+  if (mpz_cmp (x, y) != 0)
+    {
+      gmp_printf ("got  %Zd\n", x);
+      gmp_printf ("want %Zd\n", y);
+      abort ();
+    }
+
+  mpz_clear (y);
+  mpz_clear (x);
+}
+
+void
+run_p (const char *start, int reps, const char *end, short diffs[])
+{
+  mpz_t x, y;
+  int i;
+
+  mpz_init_set_str (x, end, 0);
+  mpz_init (y);
+
+  // Last rep doesn't share same data with nextprime
+  for (i = 0; i < reps - 1; i++)
+    {
+      mpz_prevprime (y, x);
+      mpz_sub (x, x, y);
+      if (diffs != NULL &&
+	  (! mpz_fits_sshort_p (x) || diffs[reps - i - 1] != (short) mpz_get_ui (x)))
+	{
+	  gmp_printf ("diff list discrepancy %Zd, %d vs %d\n",
+                y, diffs[i], mpz_get_ui (x));
+	  abort ();
+	}
+      mpz_swap (x, y);
+    }
+
+  // starts aren't always prime, so check that result is less than or equal
+  mpz_prevprime(x, x);
+
+  mpz_set_str(y, start, 0);
+  if (mpz_cmp (x, y) > 0)
+    {
+      gmp_printf ("got  %Zd\n", x);
+      gmp_printf ("want %Zd\n", y);
+      abort ();
+    }
+
+  mpz_clear (y);
+  mpz_clear (x);
+}
+
+
+extern short diff1[];
+extern short diff3[];
+extern short diff4[];
+extern short diff5[];
+extern short diff6[];
+
+void
+test_ref (gmp_randstate_ptr rands, int reps,
+          void (*func)(mpz_t, const mpz_t),
+          void(*ref_func)(mpz_t, const mpz_t))
+{
+  int i;
+  mpz_t bs, x, test_p, ref_p;
+  unsigned long size_range;
+
+  mpz_init (bs);
+  mpz_init (x);
+  mpz_init (test_p);
+  mpz_init (ref_p);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 8 + 2; /* 0..1024 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      mpz_rrandomb (x, rands, mpz_get_ui (bs));
+
+      func (test_p, x);
+      ref_func (ref_p, x);
+      if (mpz_cmp (test_p, ref_p) != 0)
+        {
+          gmp_printf ("start %Zd\n", x);
+          gmp_printf ("got   %Zd\n", test_p);
+          gmp_printf ("want  %Zd\n", ref_p);
+	  abort ();
+        }
+    }
+
+  mpz_clear (bs);
+  mpz_clear (x);
+  mpz_clear (test_p);
+  mpz_clear (ref_p);
+}
+
+void
+test_nextprime(gmp_randstate_ptr rands, int reps)
+{
+  run ("2", 1000, "0x1ef7", diff1);
+
+  run ("3", 1000 - 1, "0x1ef7", NULL);
+
+  run ("0x8a43866f5776ccd5b02186e90d28946aeb0ed914", 50,
+       "0x8a43866f5776ccd5b02186e90d28946aeb0eeec5", diff3);
+
+  run ("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6C", 50, /* 2^148 - 148 */
+       "0x100000000000000000000000000000000010ab", diff4);
+
+  run ("0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898d8b1b", 50,
+       "0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898da957", diff5);
+
+  run ("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF80", 50, /* 2^128 - 128 */
+       "0x10000000000000000000000000000155B", diff6);
+
+  test_ref(
+      rands, reps,
+      (void (*)(mpz_t, const mpz_t)) mpz_nextprime,
+      refmpz_nextprime);
+}
+
+void
+test_prevprime (gmp_randstate_ptr rands, int reps)
+{
+  long i;
+  int retval;
+  mpz_t n, prvp;
+
+  mpz_init (n);
+  mpz_init (prvp);
+
+  /* Test mpz_prevprime(n <= 2) returns 0, leaves rop unchanged. */
+  {
+    int temp = 123;
+    mpz_set_ui (prvp, temp);
+    for (i = 0; i <= 2; i++)
+      {
+        mpz_set_si(n, i);
+        retval = mpz_prevprime (prvp, n);
+        if ( retval != 0 || mpz_cmp_ui (prvp, temp) != 0 )
+          {
+            gmp_printf ("mpz_prevprime(%Zd) return (%d) rop (%Zd)\n", n, retval, prvp);
+            abort ();
+          }
+      }
+  }
+
+  mpz_clear (n);
+  mpz_clear (prvp);
+
+  run_p ("2", 1000, "0x1ef7", diff1);
+
+  run_p ("3", 1000 - 1, "0x1ef7", NULL);
+
+  run_p ("0x8a43866f5776ccd5b02186e90d28946aeb0ed914", 50,
+         "0x8a43866f5776ccd5b02186e90d28946aeb0eeec5", diff3);
+
+  run_p ("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6C", 50, /* 2^148 - 148 */
+         "0x100000000000000000000000000000000010ab", diff4);
+
+  run_p ("0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898d8b1b", 50,
+         "0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898da957", diff5);
+
+  run_p ("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF80", 50, /* 2^128 - 128 */
+         "0x10000000000000000000000000000155B", diff6);
+
+  // Cast away int return from mpz_prevprime for test ref.
+  test_ref(
+      rands, reps,
+      (void (*)(mpz_t, const mpz_t)) mpz_prevprime,
+      refmpz_prevprime);
+}
+
+int
+main (int argc, char **argv)
+{
+  gmp_randstate_ptr rands;
+  int reps = 20;
+
+  tests_start();
+
+  rands = RANDS;
+  TESTS_REPS (reps, argv, argc);
+
+  test_nextprime(rands, reps);
+  test_prevprime(rands, reps);
+
+  test_largegaps ();
+  test_bitboundaries ();
+
+  tests_end ();
+  return 0;
+}
+
+short diff1[] =
+{
+  1,2,2,4,2,4,2,4,6,2,6,4,2,4,6,6,
+  2,6,4,2,6,4,6,8,4,2,4,2,4,14,4,6,
+  2,10,2,6,6,4,6,6,2,10,2,4,2,12,12,4,
+  2,4,6,2,10,6,6,6,2,6,4,2,10,14,4,2,
+  4,14,6,10,2,4,6,8,6,6,4,6,8,4,8,10,
+  2,10,2,6,4,6,8,4,2,4,12,8,4,8,4,6,
+  12,2,18,6,10,6,6,2,6,10,6,6,2,6,6,4,
+  2,12,10,2,4,6,6,2,12,4,6,8,10,8,10,8,
+  6,6,4,8,6,4,8,4,14,10,12,2,10,2,4,2,
+  10,14,4,2,4,14,4,2,4,20,4,8,10,8,4,6,
+  6,14,4,6,6,8,6,12,4,6,2,10,2,6,10,2,
+  10,2,6,18,4,2,4,6,6,8,6,6,22,2,10,8,
+  10,6,6,8,12,4,6,6,2,6,12,10,18,2,4,6,
+  2,6,4,2,4,12,2,6,34,6,6,8,18,10,14,4,
+  2,4,6,8,4,2,6,12,10,2,4,2,4,6,12,12,
+  8,12,6,4,6,8,4,8,4,14,4,6,2,4,6,2,
+  6,10,20,6,4,2,24,4,2,10,12,2,10,8,6,6,
+  6,18,6,4,2,12,10,12,8,16,14,6,4,2,4,2,
+  10,12,6,6,18,2,16,2,22,6,8,6,4,2,4,8,
+  6,10,2,10,14,10,6,12,2,4,2,10,12,2,16,2,
+  6,4,2,10,8,18,24,4,6,8,16,2,4,8,16,2,
+  4,8,6,6,4,12,2,22,6,2,6,4,6,14,6,4,
+  2,6,4,6,12,6,6,14,4,6,12,8,6,4,26,18,
+  10,8,4,6,2,6,22,12,2,16,8,4,12,14,10,2,
+  4,8,6,6,4,2,4,6,8,4,2,6,10,2,10,8,
+  4,14,10,12,2,6,4,2,16,14,4,6,8,6,4,18,
+  8,10,6,6,8,10,12,14,4,6,6,2,28,2,10,8,
+  4,14,4,8,12,6,12,4,6,20,10,2,16,26,4,2,
+  12,6,4,12,6,8,4,8,22,2,4,2,12,28,2,6,
+  6,6,4,6,2,12,4,12,2,10,2,16,2,16,6,20,
+  16,8,4,2,4,2,22,8,12,6,10,2,4,6,2,6,
+  10,2,12,10,2,10,14,6,4,6,8,6,6,16,12,2,
+  4,14,6,4,8,10,8,6,6,22,6,2,10,14,4,6,
+  18,2,10,14,4,2,10,14,4,8,18,4,6,2,4,6,
+  2,12,4,20,22,12,2,4,6,6,2,6,22,2,6,16,
+  6,12,2,6,12,16,2,4,6,14,4,2,18,24,10,6,
+  2,10,2,10,2,10,6,2,10,2,10,6,8,30,10,2,
+  10,8,6,10,18,6,12,12,2,18,6,4,6,6,18,2,
+  10,14,6,4,2,4,24,2,12,6,16,8,6,6,18,16,
+  2,4,6,2,6,6,10,6,12,12,18,2,6,4,18,8,
+  24,4,2,4,6,2,12,4,14,30,10,6,12,14,6,10,
+  12,2,4,6,8,6,10,2,4,14,6,6,4,6,2,10,
+  2,16,12,8,18,4,6,12,2,6,6,6,28,6,14,4,
+  8,10,8,12,18,4,2,4,24,12,6,2,16,6,6,14,
+  10,14,4,30,6,6,6,8,6,4,2,12,6,4,2,6,
+  22,6,2,4,18,2,4,12,2,6,4,26,6,6,4,8,
+  10,32,16,2,6,4,2,4,2,10,14,6,4,8,10,6,
+  20,4,2,6,30,4,8,10,6,6,8,6,12,4,6,2,
+  6,4,6,2,10,2,16,6,20,4,12,14,28,6,20,4,
+  18,8,6,4,6,14,6,6,10,2,10,12,8,10,2,10,
+  8,12,10,24,2,4,8,6,4,8,18,10,6,6,2,6,
+  10,12,2,10,6,6,6,8,6,10,6,2,6,6,6,10,
+  8,24,6,22,2,18,4,8,10,30,8,18,4,2,10,6,
+  2,6,4,18,8,12,18,16,6,2,12,6,10,2,10,2,
+  6,10,14,4,24,2,16,2,10,2,10,20,4,2,4,8,
+  16,6,6,2,12,16,8,4,6,30,2,10,2,6,4,6,
+  6,8,6,4,12,6,8,12,4,14,12,10,24,6,12,6,
+  2,22,8,18,10,6,14,4,2,6,10,8,6,4,6,30,
+  14,10,2,12,10,2,16,2,18,24,18,6,16,18,6,2,
+  18,4,6,2,10,8,10,6,6,8,4,6,2,10,2,12,
+  4,6,6,2,12,4,14,18,4,6,20,4,8,6,4,8,
+  4,14,6,4,14,12,4,2,30,4,24,6,6,12,12,14,
+  6,4,2,4,18,6,12,8
+};
+
+short diff3[] =
+{
+  33,32,136,116,24,22,104,114,76,278,238,162,36,44,388,134,
+  130,26,312,42,138,28,24,80,138,108,270,12,330,130,98,102,
+  162,34,36,170,90,34,14,6,24,66,154,218,70,132,188,88,
+  80,82
+};
+
+short diff4[] =
+{
+  239,92,64,6,104,24,46,258,68,18,54,100,68,154,26,4,
+  38,142,168,42,18,26,286,104,136,116,40,2,28,110,52,78,
+  104,24,54,96,4,626,196,24,56,36,52,102,48,156,26,18,
+  42,40
+};
+
+short diff5[] =
+{
+  268,120,320,184,396,2,94,108,20,318,274,14,64,122,220,108,
+  18,174,6,24,348,32,64,116,268,162,20,156,28,110,52,428,
+  196,14,262,30,194,120,300,66,268,12,428,370,212,198,192,130,
+  30,80
+};
+
+short diff6[] =
+{
+  179,30,84,108,112,36,42,110,52,132,60,30,326,114,496,92,100,
+  272,36,54,90,4,2,24,40,398,150,72,60,16,8,4,80,16,2,342,112,
+  14,136,236,40,18,50,192,198,204,40,266,42,274
+};
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-oddeven.c b/vendor/gmp-6.3.0/tests/mpz/t-oddeven.c
new file mode 100644
index 0000000..eedad4b
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-oddeven.c
@@ -0,0 +1,87 @@
+/* Test mpz_odd_p and mpz_even_p.
+
+Copyright 2000, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+void
+check_data (void)
+{
+  static const struct {
+    const char  *n;
+    int          odd, even;
+  } data[] = {
+    {   "0", 0, 1 },
+    {   "1", 1, 0 },
+    {   "2", 0, 1 },
+    {   "3", 1, 0 },
+    {   "4", 0, 1 },
+
+    {  "-4", 0, 1 },
+    {  "-3", 1, 0 },
+    {  "-2", 0, 1 },
+    {  "-1", 1, 0 },
+
+    {  "0x1000000000000000000000000000000000000000000000000000", 0, 1 },
+    {  "0x1000000000000000000000000000000000000000000000000001", 1, 0 },
+    {  "0x1000000000000000000000000000000000000000000000000002", 0, 1 },
+    {  "0x1000000000000000000000000000000000000000000000000003", 1, 0 },
+
+    { "-0x1000000000000000000000000000000000000000000000000004", 0, 1 },
+    { "-0x1000000000000000000000000000000000000000000000000003", 1, 0 },
+    { "-0x1000000000000000000000000000000000000000000000000002", 0, 1 },
+    { "-0x1000000000000000000000000000000000000000000000000001", 1, 0 },
+  };
+
+  mpz_t  n;
+  int    i;
+
+  mpz_init (n);
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (n, data[i].n, 0);
+
+      if ((mpz_odd_p (n) != 0) != data[i].odd)
+	{
+	  printf ("mpz_odd_p wrong on data[%d]\n", i);
+	  abort();
+	}
+
+      if ((mpz_even_p (n) != 0) != data[i].even)
+	{
+	  printf ("mpz_even_p wrong on data[%d]\n", i);
+	  abort();
+	}
+    }
+
+  mpz_clear (n);
+}
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-perfpow.c b/vendor/gmp-6.3.0/tests/mpz/t-perfpow.c
new file mode 100644
index 0000000..84f9c8e
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-perfpow.c
@@ -0,0 +1,247 @@
+/* Test mpz_perfect_power_p.
+
+   Contributed to the GNU project by Torbjorn Granlund and Martin Boij.
+
+Copyright 2008-2010, 2014 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+struct
+{
+  const char *num_as_str;
+  char want;
+} static tests[] =
+  {
+    { "0", 1},
+    { "1", 1},
+    {"-1", 1},
+    { "2", 0},
+    {"-2", 0},
+    { "3", 0},
+    {"-3", 0},
+    { "4", 1},
+    {"-4", 0},
+    { "64", 1},
+    {"-64", 1},
+    { "128", 1},
+    {"-128", 1},
+    { "256", 1},
+    {"-256", 0},
+    { "512", 1},
+    {"-512", 1},
+    { "0x4000000", 1},
+    {"-0x4000000", 1},
+    { "0x3cab640", 1},
+    {"-0x3cab640", 0},
+    { "0x3e23840", 1},
+    {"-0x3e23840", 0},
+    { "0x3d3a7ed1", 1},
+    {"-0x3d3a7ed1", 1},
+    { "0x30a7a6000", 1},
+    {"-0x30a7a6000", 1},
+    { "0xf33e5a5a59", 1},
+    {"-0xf33e5a5a59", 0},
+    { "0xed1b1182118135d", 1},
+    {"-0xed1b1182118135d", 1},
+    { "0xe71f6eb7689cc276b2f1", 1},
+    {"-0xe71f6eb7689cc276b2f1", 0},
+    { "0x12644507fe78cf563a4b342c92e7da9fe5e99cb75a01", 1},
+    {"-0x12644507fe78cf563a4b342c92e7da9fe5e99cb75a01", 0},
+    { "0x1ff2e7c581bb0951df644885bd33f50e472b0b73a204e13cbe98fdb424d66561e4000000", 1},
+    {"-0x1ff2e7c581bb0951df644885bd33f50e472b0b73a204e13cbe98fdb424d66561e4000000", 1},
+    { "0x2b9b44db2d91a6f8165c8c7339ef73633228ea29e388592e80354e4380004aad84000000", 1},
+    {"-0x2b9b44db2d91a6f8165c8c7339ef73633228ea29e388592e80354e4380004aad84000000", 1},
+    { "0x28d5a2b8f330910a9d3cda06036ae0546442e5b1a83b26a436efea5b727bf1bcbe7e12b47d81", 1},
+    {"-0x28d5a2b8f330910a9d3cda06036ae0546442e5b1a83b26a436efea5b727bf1bcbe7e12b47d81", 1},
+    {NULL, 0}
+  };
+
+
+void
+check_tests ()
+{
+  mpz_t x;
+  int i;
+  int got, want;
+
+  mpz_init (x);
+
+  for (i = 0; tests[i].num_as_str != NULL; i++)
+    {
+      mpz_set_str (x, tests[i].num_as_str, 0);
+      got = mpz_perfect_power_p (x);
+      want = tests[i].want;
+      if (got != want)
+	{
+	  fprintf (stderr, "mpz_perfect_power_p returns %d when %d was expected\n", got, want);
+	  fprintf (stderr, "fault operand: %s\n", tests[i].num_as_str);
+	  abort ();
+	}
+    }
+
+  mpz_clear (x);
+}
+
+#define NRP 15
+
+void
+check_random (int reps)
+{
+  mpz_t n, np, temp, primes[NRP];
+  int i, j, k, unique, destroy, res;
+  unsigned long int nrprimes, primebits;
+  mp_limb_t g, exp[NRP], e;
+  gmp_randstate_ptr rands;
+
+  rands = RANDS;
+
+  mpz_init (n);
+  mpz_init (np);
+  mpz_init (temp);
+
+  for (i = 0; i < NRP; i++)
+    mpz_init (primes[i]);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (np, rands, 32);
+      nrprimes = mpz_get_ui (np) % NRP + 1; /* 1-NRP unique primes */
+
+      mpz_urandomb (np, rands, 32);
+      g = mpz_get_ui (np) % 32 + 2; /* gcd 2-33 */
+
+      for (j = 0; j < nrprimes;)
+	{
+	  mpz_urandomb (np, rands, 32);
+	  primebits = mpz_get_ui (np) % 100 + 3; /* 3-102 bit primes */
+	  mpz_urandomb (primes[j], rands, primebits);
+	  mpz_nextprime (primes[j], primes[j]);
+	  unique = 1;
+	  for (k = 0; k < j; k++)
+	    {
+	      if (mpz_cmp (primes[j], primes[k]) == 0)
+		{
+		  unique = 0;
+		  break;
+		}
+	    }
+	  if (unique)
+	    {
+	      mpz_urandomb (np, rands, 32);
+	      e = 371 / (10 * primebits) + mpz_get_ui (np) % 11 + 1; /* Magic constants */
+	      exp[j++] = g * e;
+	    }
+	}
+
+      if (nrprimes > 1)
+	{
+	  /* Destroy d exponents, d in [1, nrprimes - 1] */
+	  if (nrprimes == 2)
+	    {
+	      destroy = 1;
+	    }
+	  else
+	    {
+	      mpz_urandomb (np, rands, 32);
+	      destroy = mpz_get_ui (np) % (nrprimes - 2);
+	    }
+
+	  g = exp[destroy];
+	  for (k = destroy + 1; k < nrprimes; k++)
+	    g = mpn_gcd_1 (&g, 1, exp[k]);
+
+	  for (j = 0; j < destroy; j++)
+	    {
+	      mpz_urandomb (np, rands, 32);
+	      e = mpz_get_ui (np) % 50 + 1;
+	      while (mpn_gcd_1 (&g, 1, e) > 1)
+		e++;
+
+	      exp[j] = e;
+	    }
+	}
+
+      /* Compute n */
+      mpz_pow_ui (n, primes[0], exp[0]);
+      for (j = 1; j < nrprimes; j++)
+	{
+	  mpz_pow_ui (temp, primes[j], exp[j]);
+	  mpz_mul (n, n, temp);
+	}
+
+      res = mpz_perfect_power_p (n);
+
+      if (nrprimes == 1)
+	{
+	if (res == 0 && exp[0] > 1)
+	  {
+	    printf("n is a perfect power, perfpow_p disagrees\n");
+	    gmp_printf("n = %Zu\nprimes[0] = %Zu\nexp[0] = %lu\n", n, primes[0], exp[0]);
+	    abort ();
+	  }
+	else if (res == 1 && exp[0] == 1)
+	  {
+	    gmp_printf("n = %Zu\n", n);
+	    printf("n is now a prime number, but perfpow_p still believes n is a perfect power\n");
+	    abort ();
+	  }
+	}
+      else
+	{
+	  if (res == 1 && destroy != 0)
+	    {
+	      gmp_printf("n = %Zu\nn was destroyed, but perfpow_p still believes n is a perfect power\n", n);
+	      abort ();
+	    }
+	  else if (res == 0 && destroy == 0)
+	    {
+	      gmp_printf("n = %Zu\nn is a perfect power, perfpow_p disagrees\n", n);
+	      abort ();
+	    }
+	}
+    }
+
+  mpz_clear (n);
+  mpz_clear (np);
+  mpz_clear (temp);
+  for (i = 0; i < NRP; i++)
+    mpz_clear (primes[i]);
+}
+
+int
+main (int argc, char **argv)
+{
+  int n_tests;
+
+  tests_start ();
+  mp_trace_base = -16;
+
+  check_tests ();
+
+  n_tests = 500;
+  if (argc == 2)
+    n_tests = atoi (argv[1]);
+  check_random (n_tests);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-perfsqr.c b/vendor/gmp-6.3.0/tests/mpz/t-perfsqr.c
new file mode 100644
index 0000000..2223593
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-perfsqr.c
@@ -0,0 +1,154 @@
+/* Test mpz_perfect_square_p.
+
+Copyright 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+#include "mpn/perfsqr.h"
+
+
+/* check_modulo() exercises mpz_perfect_square_p on squares which cover each
+   possible quadratic residue to each divisor used within
+   mpn_perfect_square_p, ensuring those residues aren't incorrectly claimed
+   to be non-residues.
+
+   Each divisor is taken separately.  It's arranged that n is congruent to 0
+   modulo the other divisors, 0 of course being a quadratic residue to any
+   modulus.
+
+   The values "(j*others)^2" cover all quadratic residues mod divisor[i],
+   but in no particular order.  j is run from 1<=j<=divisor[i] so that zero
+   is excluded.  A literal n==0 doesn't reach the residue tests.  */
+
+void
+check_modulo (void)
+{
+  static const unsigned long  divisor[] = PERFSQR_DIVISORS;
+  unsigned long  i, j;
+
+  mpz_t  alldiv, others, n;
+
+  mpz_init (alldiv);
+  mpz_init (others);
+  mpz_init (n);
+
+  /* product of all divisors */
+  mpz_set_ui (alldiv, 1L);
+  for (i = 0; i < numberof (divisor); i++)
+    mpz_mul_ui (alldiv, alldiv, divisor[i]);
+
+  for (i = 0; i < numberof (divisor); i++)
+    {
+      /* product of all divisors except i */
+      mpz_set_ui (others, 1L);
+      for (j = 0; j < numberof (divisor); j++)
+        if (i != j)
+          mpz_mul_ui (others, others, divisor[j]);
+
+      for (j = 1; j <= divisor[i]; j++)
+        {
+          /* square */
+          mpz_mul_ui (n, others, j);
+          mpz_mul (n, n, n);
+          if (! mpz_perfect_square_p (n))
+            {
+              printf ("mpz_perfect_square_p got 0, want 1\n");
+              mpz_trace ("  n", n);
+              abort ();
+            }
+        }
+    }
+
+  mpz_clear (alldiv);
+  mpz_clear (others);
+  mpz_clear (n);
+}
+
+
+/* Exercise mpz_perfect_square_p compared to what mpz_sqrt says. */
+void
+check_sqrt (int reps)
+{
+  mpz_t x2, x2t, x;
+  mp_size_t x2n;
+  int res;
+  int i;
+  /* int cnt = 0; */
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t bs;
+
+  mpz_init (bs);
+
+  mpz_init (x2);
+  mpz_init (x);
+  mpz_init (x2t);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 9);
+      x2n = mpz_get_ui (bs);
+      mpz_rrandomb (x2, rands, x2n);
+      /* mpz_out_str (stdout, -16, x2); puts (""); */
+
+      res = mpz_perfect_square_p (x2);
+      mpz_sqrt (x, x2);
+      mpz_mul (x2t, x, x);
+
+      if (res != (mpz_cmp (x2, x2t) == 0))
+        {
+          printf    ("mpz_perfect_square_p and mpz_sqrt differ\n");
+          mpz_trace ("   x  ", x);
+          mpz_trace ("   x2 ", x2);
+          mpz_trace ("   x2t", x2t);
+          printf    ("   mpz_perfect_square_p %d\n", res);
+          printf    ("   mpz_sqrt             %d\n", mpz_cmp (x2, x2t) == 0);
+          abort ();
+        }
+
+      /* cnt += res != 0; */
+    }
+  /* printf ("%d/%d perfect squares\n", cnt, reps); */
+
+  mpz_clear (bs);
+  mpz_clear (x2);
+  mpz_clear (x);
+  mpz_clear (x2t);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  int reps = 200000;
+
+  tests_start ();
+  mp_trace_base = -16;
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  check_modulo ();
+  check_sqrt (reps);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-popcount.c b/vendor/gmp-6.3.0/tests/mpz/t-popcount.c
new file mode 100644
index 0000000..8952cc2
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-popcount.c
@@ -0,0 +1,167 @@
+/* Test mpz_popcount.
+
+Copyright 2001, 2005 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+
+void
+check_onebit (void)
+{
+  mpz_t          n;
+  unsigned long  i, got;
+
+  mpz_init (n);
+  for (i = 0; i < 5 * GMP_LIMB_BITS; i++)
+    {
+      mpz_setbit (n, i);
+      got = mpz_popcount (n);
+      if (got != 1)
+	{
+	  printf ("mpz_popcount wrong on single bit at %lu\n", i);
+	  printf ("   got %lu, want 1\n", got);
+	  abort();
+	}
+      mpz_clrbit (n, i);
+    }
+  mpz_clear (n);
+}
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char     *n;
+    unsigned long  want;
+  } data[] = {
+    { "-1", ~ (unsigned long) 0 },
+    { "-12345678", ~ (unsigned long) 0 },
+    { "0", 0 },
+    { "1", 1 },
+    { "3", 2 },
+    { "5", 2 },
+    { "0xFFFF", 16 },
+    { "0xFFFFFFFF", 32 },
+    { "0xFFFFFFFFFFFFFFFF", 64 },
+    { "0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 128 },
+  };
+
+  unsigned long   got;
+  int    i;
+  mpz_t  n;
+
+  mpz_init (n);
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (n, data[i].n, 0);
+      got = mpz_popcount (n);
+      if (got != data[i].want)
+	{
+	  printf ("mpz_popcount wrong at data[%d]\n", i);
+	  printf ("   n     \"%s\"\n", data[i].n);
+	  printf ("         ");   mpz_out_str (stdout, 10, n); printf ("\n");
+	  printf ("         0x"); mpz_out_str (stdout, 16, n); printf ("\n");
+	  printf ("   got   %lu\n", got);
+	  printf ("   want  %lu\n", data[i].want);
+	  abort ();
+	}
+    }
+  mpz_clear (n);
+}
+
+unsigned long
+refmpz_popcount (mpz_t arg)
+{
+  mp_size_t n, i;
+  unsigned long cnt;
+  mp_limb_t x;
+
+  n = SIZ(arg);
+  if (n < 0)
+    return ~(unsigned long) 0;
+
+  cnt = 0;
+  for (i = 0; i < n; i++)
+    {
+      x = PTR(arg)[i];
+      while (x != 0)
+	{
+	  cnt += (x & 1);
+	  x >>= 1;
+	}
+    }
+  return cnt;
+}
+
+void
+check_random (void)
+{
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  mpz_t arg;
+  unsigned long arg_size, size_range;
+  unsigned long got, ref;
+  int i;
+
+  rands = RANDS;
+
+  mpz_init (bs);
+  mpz_init (arg);
+
+  for (i = 0; i < 10000; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 11 + 2; /* 0..4096 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      arg_size = mpz_get_ui (bs);
+      mpz_rrandomb (arg, rands, arg_size);
+
+      got = mpz_popcount (arg);
+      ref = refmpz_popcount (arg);
+      if (got != ref)
+	{
+	  printf ("mpz_popcount wrong on random\n");
+	  printf ("         ");   mpz_out_str (stdout, 10, arg); printf ("\n");
+	  printf ("         0x"); mpz_out_str (stdout, 16, arg); printf ("\n");
+	  printf ("   got   %lu\n", got);
+	  printf ("   want  %lu\n", ref);
+	  abort ();
+	}
+    }
+  mpz_clear (arg);
+  mpz_clear (bs);
+}
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_onebit ();
+  check_data ();
+  check_random ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-pow.c b/vendor/gmp-6.3.0/tests/mpz/t-pow.c
new file mode 100644
index 0000000..ff41721
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-pow.c
@@ -0,0 +1,217 @@
+/* Test mpz_pow_ui and mpz_ui_pow_ui.
+
+Copyright 1997, 1999-2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr want, mpz_srcptr base, unsigned long exp)
+{
+  mpz_t  got;
+
+  mpz_init (got);
+
+  MPZ_CHECK_FORMAT (want);
+
+  mpz_pow_ui (got, base, exp);
+  if (mpz_cmp (got, want))
+    {
+      printf ("mpz_pow_ui wrong\n");
+      mpz_trace ("  base", base);
+      printf    ("  exp = %lu (0x%lX)\n", exp, exp);
+      mpz_trace ("  got ", got);
+      mpz_trace ("  want", want);
+      abort ();
+    }
+
+  mpz_set (got, base);
+  mpz_pow_ui (got, got, exp);
+  if (mpz_cmp (got, want))
+    {
+      printf ("mpz_pow_ui wrong\n");
+      mpz_trace ("  base", base);
+      printf    ("  exp = %lu (0x%lX)\n", exp, exp);
+      mpz_trace ("  got ", got);
+      mpz_trace ("  want", want);
+      abort ();
+    }
+
+  if (mpz_fits_ulong_p (base))
+    {
+      unsigned long  base_u = mpz_get_ui (base);
+      mpz_ui_pow_ui (got, base_u, exp);
+      if (mpz_cmp (got, want))
+	{
+	  printf    ("mpz_ui_pow_ui wrong\n");
+	  printf    ("  base=%lu (0x%lX)\n", base_u, base_u);
+	  printf    ("  exp = %lu (0x%lX)\n", exp, exp);
+	  mpz_trace ("  got ", got);
+	  mpz_trace ("  want", want);
+	  abort ();
+	}
+    }
+
+  mpz_clear (got);
+}
+
+void
+check_base (mpz_srcptr base)
+{
+  unsigned long  exp;
+  mpz_t          want;
+
+  mpz_init (want);
+  mpz_set_ui (want, 1L);
+
+  for (exp = 0; exp < 20; exp++)
+    {
+      check_one (want, base, exp);
+      mpz_mul (want, want, base);
+    }
+
+  mpz_clear (want);
+}
+
+void
+check_various (void)
+{
+  static const struct {
+    const char *base;
+  } data[] = {
+    { "0" },
+    { "1" },
+    { "2" },
+    { "3" },
+    { "4" },
+    { "5" },
+    { "6" },
+    { "10" },
+    { "15" },
+    { "16" },
+
+    { "0x1F" },
+    { "0xFF" },
+    { "0x1001" },
+    { "0xFFFF" },
+    { "0x10000001" },
+    { "0x1000000000000001" },
+
+    /* actual size closest to estimate */
+    { "0xFFFFFFFF" },
+    { "0xFFFFFFFFFFFFFFFF" },
+
+    /* same after rshift */
+    { "0xFFFFFFFF0" },
+    { "0xFFFFFFFF00" },
+    { "0xFFFFFFFFFFFFFFFF0" },
+    { "0xFFFFFFFFFFFFFFFF00" },
+
+    /* change from 2 limbs to 1 after rshift */
+    { "0x180000000" },
+    { "0x18000000000000000" },
+
+    /* change from 3 limbs to 2 after rshift */
+    { "0x18000000100000000" },
+    { "0x180000000000000010000000000000000" },
+
+    /* handling of absolute value */
+    { "-0x80000000" },
+    { "-0x8000000000000000" },
+
+    /* low zero limb, and size>2, checking argument overlap detection */
+    { "0x3000000000000000300000000000000030000000000000000" },
+  };
+
+  mpz_t  base;
+  int    i;
+
+  mpz_init (base);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (base, data[i].base, 0);
+      check_base (base);
+    }
+
+  mpz_clear (base);
+}
+
+void
+check_random (int reps)
+{
+  mpz_t              base, want;
+  mp_size_t          base_size;
+  int                i;
+  unsigned long      size_range, exp;
+  gmp_randstate_ptr  rands = RANDS;
+
+  mpz_init (base);
+  mpz_init (want);
+
+  for (i = 0; i < reps; i++)
+    {
+      /* exponentially random 0 to 2^13 bits for base */
+      mpz_urandomb (want, rands, 32);
+      size_range = mpz_get_ui (want) % 12 + 2;
+      mpz_urandomb (want, rands, size_range);
+      base_size = mpz_get_ui (want);
+      mpz_rrandomb (base, rands, base_size);
+
+      /* randomly signed base */
+      mpz_urandomb (want, rands, 2);
+      if ((mpz_get_ui (want) & 1) != 0)
+	mpz_neg (base, base);
+
+      /* random 5 bits for exponent */
+      mpz_urandomb (want, rands, 5L);
+      exp = mpz_get_ui (want);
+
+      refmpz_pow_ui (want, base, exp);
+      check_one (want, base, exp);
+    }
+
+  mpz_clear (base);
+  mpz_clear (want);
+}
+
+int
+main (int argc, char **argv)
+{
+  int reps = 5000;
+
+  /* dummy call to drag in refmpn.o for testing mpz/n_pow_ui.c with
+     refmpn_mul_2 */
+  refmpn_zero_p (NULL, (mp_size_t) 0);
+
+  tests_start ();
+  mp_trace_base = -16;
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  check_various ();
+  check_random (reps);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-powm.c b/vendor/gmp-6.3.0/tests/mpz/t-powm.c
new file mode 100644
index 0000000..1a25ed7
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-powm.c
@@ -0,0 +1,263 @@
+/* Test mpz_powm, mpz_mul, mpz_mod, mpz_mod_ui, mpz_div_ui.
+
+Copyright 1991, 1993, 1994, 1996, 1999-2001, 2009, 2012, 2019 Free
+Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void debug_mp (mpz_t, int);
+
+#define SIZEM 13
+
+/* Check that all sizes up to just above MUL_TOOM22_THRESHOLD have been tested
+   a few times.  FIXME: If SIZEM is set too low, this will never happen.  */
+int
+allsizes_seen (unsigned int *allsizes)
+{
+  mp_size_t i;
+
+  for (i = 1; i < MUL_TOOM22_THRESHOLD + 4; i++)
+    if (allsizes[i] < 4)
+      return 0;
+  return 1;
+}
+
+void
+small_2pow (unsigned long reps)
+{
+  mpz_t du, exp, mod;
+  mpz_t r1;
+  unsigned long m, e, r;
+  mp_limb_t b0 = 2;
+
+  mpz_roinit_n (du, &b0, 1);
+  mpz_init (exp);
+  mpz_init (mod);
+  mpz_init (r1);
+
+  for (m = 3; m * m < reps; m += 2)
+    {
+      mpz_set_ui (mod, m);
+      r = 1;
+      for (e = 0; e < m; e += 1)
+	{
+	  mpz_set_ui (exp, e);
+	  mpz_powm (r1, du, exp, mod);
+	  MPZ_CHECK_FORMAT (r1);
+	  if (mpz_cmp_ui (r1, r) != 0)
+	    {
+	      fprintf (stderr, "\nIncorrect result for operands:\n");
+	      debug_mp (du, -16);
+	      debug_mp (exp, -16);
+	      debug_mp (mod, -16);
+	      fprintf (stderr, "mpz_powm result:\n");
+	      debug_mp (r1, -16);
+	      fprintf (stderr, "Should be 2 ^ 0x%lx = 0x%lx (mod 0x%lx)\n", e, r, m);
+	      abort ();
+	    }
+	  if (r > (m >> 1))
+	    r = (r << 1) - m;
+	  else
+	    r = r << 1;
+	}
+    }
+
+  mpz_clear (exp);
+  mpz_clear (mod);
+  mpz_clear (r1);
+}
+
+int
+main (int argc, char **argv)
+{
+  mpz_t base, exp, mod;
+  mpz_t r1, r2, t1, exp2, base2;
+  mp_size_t base_size, exp_size, mod_size;
+  int i;
+  int reps = 1000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  unsigned int allsizes[1 << (SIZEM + 2 - 1)];
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  small_2pow ((unsigned int) reps);
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (base);
+  mpz_init (exp);
+  mpz_init (mod);
+  mpz_init (r1);
+  mpz_init (r2);
+  mpz_init (t1);
+  mpz_init (exp2);
+  mpz_init (base2);
+
+  memset (allsizes, 0, (1 << (SIZEM + 2 - 1)) * sizeof (int));
+
+  reps += reps >> 3;
+  for (i = 0; i < reps || ! allsizes_seen (allsizes); i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % SIZEM + 2;
+
+      if ((i & 7) == 0)
+	{
+	  mpz_set_ui (exp, 1);
+
+	  do  /* Loop until mathematically well-defined.  */
+	    {
+	      mpz_urandomb (bs, rands, size_range / 2 + 2);
+	      base_size = mpz_get_ui (bs);
+	      mpz_rrandomb (base, rands, base_size);
+	    }
+	  while (mpz_cmp_ui (base, 0) == 0);
+
+	  mpz_urandomb (bs, rands, size_range / 2);
+	  mod_size = mpz_get_ui (bs);
+	  mod_size = MIN (mod_size, base_size);
+	  mpz_rrandomb (mod, rands, mod_size);
+
+	  mpz_urandomb (bs, rands, size_range);
+	  mod_size = mpz_get_ui (bs) + base_size + 2;
+	  if ((i & 8) == 0)
+	    mod_size += GMP_NUMB_BITS - mod_size % GMP_NUMB_BITS;
+	  mpz_setbit (mod, mod_size);
+
+	  mpz_sub (base, base, mod);
+	}
+      else
+	{
+      do  /* Loop until mathematically well-defined.  */
+	{
+	  if ((i & 7) == 4)
+	    mpz_set_ui (base, 2);
+	  else
+	    {
+	      mpz_urandomb (bs, rands, size_range);
+	      base_size = mpz_get_ui (bs);
+	      mpz_rrandomb (base, rands, base_size);
+	    }
+
+	  mpz_urandomb (bs, rands, 7L);
+	  exp_size = mpz_get_ui (bs);
+	  mpz_rrandomb (exp, rands, exp_size);
+	}
+      while (mpz_cmp_ui (base, 0) == 0 && mpz_cmp_ui (exp, 0) == 0);
+
+      do
+        {
+	  mpz_urandomb (bs, rands, size_range);
+	  mod_size = mpz_get_ui (bs);
+	  mpz_rrandomb (mod, rands, mod_size);
+	}
+      while (mpz_cmp_ui (mod, 0) == 0);
+
+      allsizes[SIZ(mod)] += 1;
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (base, base);
+
+      /* printf ("%ld %ld %ld\n", SIZ (base), SIZ (exp), SIZ (mod)); */
+	}
+
+      mpz_set_ui (r2, 1);
+      mpz_mod (base2, base, mod);
+      mpz_set (exp2, exp);
+      mpz_mod (r2, r2, mod);
+
+      for (;;)
+	{
+	  if (mpz_tstbit (exp2, 0))
+	    {
+	      mpz_mul (r2, r2, base2);
+	      mpz_mod (r2, r2, mod);
+	    }
+	  if  (mpz_cmp_ui (exp2, 1) <= 0)
+	    break;
+	  mpz_mul (base2, base2, base2);
+	  mpz_mod (base2, base2, mod);
+	  mpz_tdiv_q_2exp (exp2, exp2, 1);
+	}
+
+      mpz_powm (r1, base, exp, mod);
+      MPZ_CHECK_FORMAT (r1);
+
+      if (mpz_cmp (r1, r2) != 0)
+	{
+	  fprintf (stderr, "\nIncorrect results in test %d for operands:\n", i);
+	  debug_mp (base, -16);
+	  debug_mp (exp, -16);
+	  debug_mp (mod, -16);
+	  fprintf (stderr, "mpz_powm result:\n");
+	  debug_mp (r1, -16);
+	  fprintf (stderr, "reference result:\n");
+	  debug_mp (r2, -16);
+	  abort ();
+	}
+
+      if (mpz_tdiv_ui (mod, 2) == 0)
+	continue;
+
+      mpz_powm_sec (r1, base, exp, mod);
+      MPZ_CHECK_FORMAT (r1);
+
+      if (mpz_cmp (r1, r2) != 0)
+	{
+	  fprintf (stderr, "\nIncorrect results in test %d for operands:\n", i);
+	  debug_mp (base, -16);
+	  debug_mp (exp, -16);
+	  debug_mp (mod, -16);
+	  fprintf (stderr, "mpz_powm_sec result:\n");
+	  debug_mp (r1, -16);
+	  fprintf (stderr, "reference result:\n");
+	  debug_mp (r2, -16);
+	  abort ();
+	}
+    }
+
+  mpz_clear (bs);
+  mpz_clear (base);
+  mpz_clear (exp);
+  mpz_clear (mod);
+  mpz_clear (r1);
+  mpz_clear (r2);
+  mpz_clear (t1);
+  mpz_clear (exp2);
+  mpz_clear (base2);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-powm_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-powm_ui.c
new file mode 100644
index 0000000..5b446c5
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-powm_ui.c
@@ -0,0 +1,127 @@
+/* Test mpz_powm_ui, mpz_mul, mpz_mod.
+
+Copyright 1991, 1993, 1994, 1996, 1997, 2000-2002, 2013 Free Software
+Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+int
+main (int argc, char **argv)
+{
+  mpz_t base, exp, mod;
+  mpz_t r1, r2, base2;
+  mp_size_t base_size, exp_size, mod_size;
+  unsigned long int exp2;
+  int i;
+  int reps = 100;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  TESTS_REPS (reps, argv, argc);
+
+  mpz_inits (bs, base, exp, mod, r1, r2, base2, NULL);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 18 + 2;
+
+      do  /* Loop until mathematically well-defined.  */
+	{
+	  mpz_urandomb (bs, rands, size_range);
+	  base_size = mpz_get_ui (bs);
+	  mpz_rrandomb (base, rands, base_size);
+
+	  mpz_urandomb (bs, rands, 6L);
+	  exp_size = mpz_get_ui (bs);
+	  mpz_rrandomb (exp, rands, exp_size);
+	  exp2 = mpz_getlimbn (exp, (mp_size_t) 0);
+	}
+      while (mpz_cmp_ui (base, 0) == 0 && exp2 == 0);
+
+      do
+        {
+	  mpz_urandomb (bs, rands, size_range);
+	  mod_size = mpz_get_ui (bs);
+	  mpz_rrandomb (mod, rands, mod_size);
+	}
+      while (mpz_cmp_ui (mod, 0) == 0);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (base, base);
+
+      /* printf ("%ld %ld\n", SIZ (base), SIZ (mod)); */
+
+#if 0
+      putc ('\n', stderr);
+      gmp_fprintf (stderr, "B = 0x%Zx\n", base);
+      gmp_fprintf (stderr, "M = 0x%Zx\n", mod);
+#endif
+
+      exp2 = mpz_getlimbn (exp, (mp_size_t) 0);
+      mpz_set_ui (r2, 1);
+      mpz_set (base2, base);
+      mpz_mod (r2, r2, mod);	/* needed when exp==0 and mod==1 */
+      while (exp2 != 0)
+	{
+	  if (exp2 % 2 != 0)
+	    {
+	      mpz_mul (r2, r2, base2);
+	      mpz_mod (r2, r2, mod);
+	    }
+	  mpz_mul (base2, base2, base2);
+	  mpz_mod (base2, base2, mod);
+	  exp2 = exp2 / 2;
+	}
+
+      exp2 = mpz_getlimbn (exp, (mp_size_t) 0);
+      mpz_powm_ui (r1, base, exp2, mod);
+      MPZ_CHECK_FORMAT (r1);
+
+#if 0
+      gmp_fprintf (stderr, "R   = 0x%Zx\n", r1);
+      gmp_fprintf (stderr, "REF = 0x%Zx\n", r2);
+#endif
+
+      if (mpz_cmp (r1, r2) != 0)
+	{
+	  fprintf (stderr, "\ntest %d: Incorrect results for operands:\n", i);
+	  gmp_fprintf (stderr, "B = 0x%Zx\n", base);
+	  gmp_fprintf (stderr, "E = 0x%Zx\n", exp);
+	  gmp_fprintf (stderr, "M = 0x%Zx\n", mod);
+	  gmp_fprintf (stderr, "R   = 0x%Zx\n", r1);
+	  gmp_fprintf (stderr, "REF = 0x%Zx\n", r2);
+	  abort ();
+	}
+    }
+
+  mpz_clears (bs, base, exp, mod, r1, r2, base2, NULL);
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-pprime_p.c b/vendor/gmp-6.3.0/tests/mpz/t-pprime_p.c
new file mode 100644
index 0000000..dffe6ea
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-pprime_p.c
@@ -0,0 +1,243 @@
+/* Exercise mpz_probab_prime_p.
+
+Copyright 2002, 2018-2019, 2022 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Enhancements:
+
+   - Test some big primes don't come back claimed to be composite.
+   - Test some big composites don't come back claimed to be certainly prime.
+   - Test some big composites with small factors are identified as certainly
+     composite.  */
+
+
+/* return 2 if prime, 0 if composite */
+int
+isprime (unsigned long n)
+{
+  if (n < 4)
+    return (n & 2);
+  if ((n & 1) == 0)
+    return 0;
+
+  for (unsigned long i = 3; i*i <= n; i+=2)
+    if ((n % i) == 0)
+      return 0;
+
+  return 2;
+}
+
+void
+check_one (mpz_srcptr n, int want)
+{
+  int  got;
+
+  got = mpz_probab_prime_p (n, 25);
+
+  /* "definitely prime" (2) is fine if we only wanted "probably prime" (1) */
+  if ((got != want) && (got != want * 2))
+    {
+      printf ("mpz_probab_prime_p\n");
+      mpz_trace ("  n    ", n);
+      printf    ("  got =%d", got);
+      printf    ("  want=%d", want);
+      abort ();
+    }
+}
+
+void
+check_pn (mpz_ptr n, int want)
+{
+  check_one (n, want);
+  mpz_neg (n, n);
+  check_one (n, want);
+}
+
+/* expect certainty for small n */
+void
+check_small (void)
+{
+  mpz_t  n;
+  long   i;
+
+  mpz_init (n);
+
+  for (i = 0; i < 300; i++)
+    {
+      mpz_set_si (n, i);
+      check_pn (n, isprime (i));
+    }
+
+  mpz_clear (n);
+}
+
+void
+check_composites (int count)
+{
+  int i;
+  mpz_t a, b, n, bs;
+  unsigned long size_range, size;
+  gmp_randstate_ptr rands = RANDS;
+
+  mpz_init (a);
+  mpz_init (b);
+  mpz_init (n);
+  mpz_init (bs);
+
+  static const char * const composites[] = {
+    "225670644213750121",	/* n=61*C16, if D < 61, (n/D) = 1.	*/
+    "2386342059899637841",	/* n=61*C17, if D < 61, (n/D) = 1.	*/
+    "1194649",	/* A square, but strong base-2 pseudoprime,	*/
+    "12327121",	/* another base-2 pseudoprime square.	*/
+    "18446744066047760377",	/* Should trigger Fibonacci's test;	*/
+    "10323769",			/* &3==1, Lucas' test with D=37;	*/
+    "1397419",			/* &3==3, Lucas' test with D=43;	*/
+    "11708069165918597341",	/* &3==1, Lucas' test with large D=107;	*/
+    "395009109077493751",	/* &3==3, Lucas' test with large D=113.	*/
+    NULL
+  };
+
+  for (i = 0; composites[i]; i++)
+    {
+      mpz_set_str_or_abort (n, composites[i], 0);
+      check_one (n, 0);
+    }
+
+  for (i = 0; i < count; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 13 + 1; /* 0..8192 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (a, rands, size);
+
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 13 + 1; /* 0..8192 bit operands */
+      mpz_rrandomb (b, rands, size);
+
+      /* Exclude trivial factors */
+      if (mpz_cmp_ui (a, 1) == 0)
+	mpz_set_ui (a, 2);
+      if (mpz_cmp_ui (b, 1) == 0)
+	mpz_set_ui (b, 2);
+
+      mpz_mul (n, a, b);
+
+      check_pn (n, 0);
+    }
+  mpz_clear (a);
+  mpz_clear (b);
+  mpz_clear (n);
+  mpz_clear (bs);
+}
+
+static void
+check_primes (void)
+{
+  static const char * const primes[] = {
+    "2", "53", "1234567891",
+    "2055693949", "1125899906842597", "16412292043871650369",
+    "18446744075358702679",	/* Lucas' test with large D=107.	*/
+    /* diffie-hellman-group1-sha1, also "Well known group 2" in RFC
+       2412, 2^1024 - 2^960 - 1 + 2^64 * { [2^894 pi] + 129093 } */
+    "0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
+    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD"
+    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
+    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED"
+    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381"
+    "FFFFFFFFFFFFFFFF",
+    NULL
+  };
+
+  mpz_t n;
+  int i;
+
+  mpz_init (n);
+
+  for (i = 0; primes[i]; i++)
+    {
+      mpz_set_str_or_abort (n, primes[i], 0);
+      check_one (n, 1);
+    }
+  mpz_clear (n);
+}
+
+static void
+check_fermat_mersenne (int count)
+{
+  int fermat_exponents [] = {1, 2, 4, 8, 16};
+  int mersenne_exponents [] = {2, 3, 5, 7, 13, 17, 19, 31, 61, 89,
+			       107, 127, 521, 607, 1279, 2203, 2281,
+			       3217, 4253, 4423, 9689, 9941, 11213,
+			       19937, 21701, 23209, 44497, 86243};
+  mpz_t pp;
+  int i, j, want;
+
+  mpz_init (pp);
+  count = MIN (110000, count);
+
+  for (i=1; i<count; ++i)
+    {
+      mpz_set_ui (pp, 1);
+      mpz_setbit (pp, i); /* 2^i + 1 */
+      want = 0;
+      for (j = 0; j < numberof (fermat_exponents); j++)
+	if (fermat_exponents[j] == i)
+	  {
+	    /* Fermat's primes are small enough for a definite answer. */
+	    want = 2;
+	    break;
+	  }
+      check_one (pp, want);
+
+      mpz_sub_ui (pp, pp, 2); /* 2^i - 1 */
+      want = 0;
+      for (j = 0; j < numberof (mersenne_exponents); j++)
+	if (mersenne_exponents[j] == i)
+	  {
+	    want = 1 << (i < 50);
+	    break;
+	  }
+      check_one (pp, want);
+    }
+  mpz_clear (pp);
+}
+
+int
+main (int argc, char **argv)
+{
+  int count = 1000;
+
+  TESTS_REPS (count, argv, argc);
+
+  tests_start ();
+
+  check_small ();
+  check_fermat_mersenne (count >> 3);
+  check_composites (count);
+  check_primes ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-primorial_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-primorial_ui.c
new file mode 100644
index 0000000..b4d2bfe
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-primorial_ui.c
@@ -0,0 +1,145 @@
+/* Exercise mpz_primorial_ui.
+
+Copyright 2000-2002, 2012, 2015 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+/* Usage: t-primorial_ui [x|num]
+
+   With no arguments testing goes up to the initial value of "limit" below.
+   With a number argument tests are carried that far, or with a literal "x"
+   tests are continued without limit (this being meant only for development
+   purposes).  */
+
+static int isprime (unsigned long int t);
+
+int
+main (int argc, char *argv[])
+{
+  unsigned long  n;
+  unsigned long  limit = 2222;
+  gmp_randstate_ptr rands;
+  mpz_t          f, r, bs;
+
+  tests_start ();
+  rands = RANDS;
+
+  if (argc > 1 && argv[1][0] == 'x')
+    limit = ULONG_MAX;
+  else
+    TESTS_REPS (limit, argv, argc);
+
+  /* for small limb testing */
+  limit = MIN (limit, MP_LIMB_T_MAX);
+
+  mpz_init_set_ui (f, 1);  /* 0# = 1 */
+  mpz_init (r);
+
+  n = 0;
+  do
+    {
+      mpz_primorial_ui (r, n);
+      MPZ_CHECK_FORMAT (r);
+
+      if (mpz_cmp (f, r) != 0)
+	{
+	  printf ("mpz_primorial_ui(%lu) wrong\n", n);
+	  printf ("  got  "); mpz_out_str (stdout, 10, r); printf("\n");
+	  printf ("  want "); mpz_out_str (stdout, 10, f); printf("\n");
+	  abort ();
+	}
+
+      if (isprime (++n))
+	mpz_mul_ui (f, f, n);  /* p# = (p-1)# * (p) */
+      if (n%16 == 0) { mpz_clear (r); mpz_init (r); }
+    } while (n < limit);
+
+  n = 0; limit =1;
+  mpz_init (bs);
+  do
+    {
+      unsigned long i, d;
+
+      mpz_urandomb (bs, rands, 21);
+      i = mpz_get_ui (bs);
+      mpz_urandomb (bs, rands, 9);
+      d = mpz_get_ui (bs) + 3*64;
+      mpz_primorial_ui (f, i);
+      MPZ_CHECK_FORMAT (f);
+      mpz_primorial_ui (r, i+d);
+      MPZ_CHECK_FORMAT (r);
+
+      do {
+	if (isprime (++i))
+	  mpz_mul_ui (f, f, i);
+      } while (--d != 0);
+
+      if (mpz_cmp (f, r) != 0)
+	{
+	  printf ("mpz_primorial_ui(%lu) wrong\n", i);
+	  printf ("  got  "); mpz_out_str (stdout, 10, r); printf("\n");
+	  printf ("  want "); mpz_out_str (stdout, 10, f); printf("\n");
+	  abort ();
+	}
+    } while (++n < limit);
+  /* Chech a single "big" value, modulo a larger prime */
+  n = 2095637;
+  mpz_primorial_ui (r, n);
+  mpz_set_ui (f, 13);
+  mpz_setbit (f, 64); /* f = 2^64 + 13 */
+  mpz_tdiv_r (r, r, f);
+  mpz_set_str (f, "BAFCBF3C95B217D5", 16);
+
+  if (mpz_cmp (f, r) != 0)
+    {
+      printf ("mpz_primorial_ui(%lu) wrong\n", n);
+      printf ("  got  "); mpz_out_str (stdout, 10, r); printf("\n");
+      printf ("  want "); mpz_out_str (stdout, 10, f); printf("\n");
+      abort ();
+    }
+
+  mpz_clear (bs);
+  mpz_clear (f);
+  mpz_clear (r);
+
+  tests_end ();
+
+  exit (0);
+}
+
+static int
+isprime (unsigned long int t)
+{
+  unsigned long int q, r, d;
+
+  if (t < 3 || (t & 1) == 0)
+    return t == 2;
+
+  for (d = 3, r = 1; r != 0; d += 2)
+    {
+      q = t / d;
+      r = t - q * d;
+      if (q < d)
+	return 1;
+    }
+  return 0;
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-remove.c b/vendor/gmp-6.3.0/tests/mpz/t-remove.c
new file mode 100644
index 0000000..07ba918
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-remove.c
@@ -0,0 +1,146 @@
+/* Test mpz_remove.
+
+Copyright 1991, 1993, 1994, 1996, 1997, 2000, 2001, 2009, 2012, 2013 Free
+Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void debug_mp (mpz_t);
+unsigned long int mpz_refremove (mpz_t, const mpz_t, const mpz_t);
+
+int
+main (int argc, char **argv)
+{
+  unsigned long int exp;
+  mpz_t t, dest, refdest, dividend, divisor;
+  mp_size_t dividend_size, divisor_size;
+  int i;
+  int reps = 1000;
+  unsigned long int pwr, refpwr;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long size_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  mpz_inits (bs, t, dest, refdest, dividend, divisor, NULL);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 18 + 1; /* 1..524288 bit operands */
+
+      do
+	{
+	  mpz_urandomb (bs, rands, size_range);
+	  divisor_size = mpz_get_ui (bs);
+	  mpz_rrandomb (divisor, rands, divisor_size);
+	}
+      while (mpz_sgn (divisor) == 0);
+
+      mpz_urandomb (bs, rands, size_range);
+      dividend_size = mpz_get_ui (bs) + divisor_size;
+      mpz_rrandomb (dividend, rands, dividend_size);
+
+      mpz_urandomb (bs, rands, 32);
+      exp = mpz_get_ui (bs) % (5 + 10000 / mpz_sizeinbase (divisor, 2));
+      if (mpz_get_ui (bs) & 2)
+	mpz_neg (divisor, divisor);
+      mpz_pow_ui (t, divisor, exp);
+      mpz_mul (dividend, dividend, t);
+
+      refpwr = mpz_refremove (refdest, dividend, divisor);
+      pwr = mpz_remove (dest, dividend, divisor);
+
+      if (refpwr != pwr || mpz_cmp (refdest, dest) != 0)
+	{
+	  fprintf (stderr, "ERROR after %d tests\n", i);
+	  fprintf (stderr, "refpower = %lu\n", refpwr);
+	  fprintf (stderr, "   power = %lu\n", pwr);
+	  fprintf (stderr, "    op1 = "); debug_mp (dividend);
+	  fprintf (stderr, "    op2 = "); debug_mp (divisor);
+	  fprintf (stderr, "refdest = "); debug_mp (refdest);
+	  fprintf (stderr, "   dest = "); debug_mp (dest);
+	  abort ();
+	}
+    }
+
+  mpz_clears (bs, t, dest, refdest, dividend, divisor, NULL);
+
+  tests_end ();
+  exit (0);
+}
+
+unsigned long int
+mpz_refremove (mpz_t dest, const mpz_t src, const mpz_t f)
+{
+  unsigned long int pwr;
+
+  pwr = 0;
+
+  mpz_set (dest, src);
+  if (mpz_cmpabs_ui (f, 1) > 0)
+    {
+      mpz_t rem, x;
+
+      mpz_init (x);
+      mpz_init (rem);
+
+      for (;; pwr++)
+	{
+	  mpz_tdiv_qr (x, rem, dest, f);
+	  if (mpz_cmp_ui (rem, 0) != 0)
+	    break;
+	  mpz_swap (dest, x);
+	}
+
+      mpz_clear (x);
+      mpz_clear (rem);
+    }
+
+  return pwr;
+}
+
+void
+debug_mp (mpz_t x)
+{
+  size_t siz = mpz_sizeinbase (x, 16);
+
+  if (siz > 65)
+    {
+      mpz_t q;
+      mpz_init (q);
+      mpz_tdiv_q_2exp (q, x, 4 * (mpz_sizeinbase (x, 16) - 25));
+      gmp_fprintf (stderr, "%ZX...", q);
+      mpz_tdiv_r_2exp (q, x, 4 * 25);
+      gmp_fprintf (stderr, "%025ZX [%d]\n", q, (int) siz);
+      mpz_clear (q);
+    }
+  else
+    {
+      gmp_fprintf (stderr, "%ZX\n", x);
+    }
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-root.c b/vendor/gmp-6.3.0/tests/mpz/t-root.c
new file mode 100644
index 0000000..e1ce159
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-root.c
@@ -0,0 +1,174 @@
+/* Test mpz_root, mpz_rootrem, and mpz_perfect_power_p.
+
+Copyright 1991, 1993, 1994, 1996, 2000, 2001, 2009, 2015 Free Software
+Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void debug_mp (mpz_t, int);
+
+void
+check_one (mpz_t root1, mpz_t x2, unsigned long nth, int res, int i)
+{
+  mpz_t temp, temp2;
+  mpz_t root2, rem2;
+
+  mpz_init (root2);
+  mpz_init (rem2);
+  mpz_init (temp);
+  mpz_init (temp2);
+
+  MPZ_CHECK_FORMAT (root1);
+
+  mpz_rootrem (root2, rem2, x2, nth);
+  MPZ_CHECK_FORMAT (root2);
+  MPZ_CHECK_FORMAT (rem2);
+
+  mpz_pow_ui (temp, root1, nth);
+  MPZ_CHECK_FORMAT (temp);
+
+  mpz_add (temp2, temp, rem2);
+
+  /* Is power of result > argument?  */
+  if (mpz_cmp (root1, root2) != 0 || mpz_cmp (x2, temp2) != 0 || mpz_cmpabs (temp, x2) > 0 || res == mpz_cmp_ui (rem2, 0))
+    {
+      fprintf (stderr, "ERROR after test %d\n", i);
+      debug_mp (x2, 10);
+      debug_mp (root1, 10);
+      debug_mp (root2, 10);
+      fprintf (stderr, "nth: %lu ,res: %i\n", nth, res);
+      abort ();
+    }
+
+  if (nth > 1 && mpz_cmp_ui (temp, 1L) > 0 && ! mpz_perfect_power_p (temp))
+    {
+      fprintf (stderr, "ERROR in mpz_perfect_power_p after test %d\n", i);
+      debug_mp (temp, 10);
+      debug_mp (root1, 10);
+      fprintf (stderr, "nth: %lu\n", nth);
+      abort ();
+    }
+
+  if (nth <= 10000 && mpz_sgn(x2) > 0)		/* skip too expensive test */
+    {
+      mpz_add_ui (temp2, root1, 1L);
+      mpz_pow_ui (temp2, temp2, nth);
+      MPZ_CHECK_FORMAT (temp2);
+
+      /* Is square of (result + 1) <= argument?  */
+      if (mpz_cmp (temp2, x2) <= 0)
+	{
+	  fprintf (stderr, "ERROR after test %d\n", i);
+	  debug_mp (x2, 10);
+	  debug_mp (root1, 10);
+	  fprintf (stderr, "nth: %lu\n", nth);
+	  abort ();
+	}
+    }
+
+  mpz_clear (root2);
+  mpz_clear (rem2);
+  mpz_clear (temp);
+  mpz_clear (temp2);
+}
+
+int
+main (int argc, char **argv)
+{
+  mpz_t x2;
+  mpz_t root1;
+  mp_size_t x2_size;
+  int i, res;
+  int reps = 500;
+  unsigned long nth;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (x2);
+  mpz_init (root1);
+
+  /* This triggers a gcc 4.3.2 bug */
+  mpz_set_str (x2, "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000000000000000000000000000000000000000000000000000000000002", 16);
+  res = mpz_root (root1, x2, 2);
+  check_one (root1, x2, 2, res, -1);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 17 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      x2_size = mpz_get_ui (bs) + 10;
+      mpz_rrandomb (x2, rands, x2_size);
+
+      mpz_urandomb (bs, rands, 15);
+      nth = mpz_getlimbn (bs, 0) % mpz_sizeinbase (x2, 2) + 2;
+
+      res = mpz_root (root1, x2, nth);
+
+      mpz_urandomb (bs, rands, 4);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	{
+	  /* With 50% probability, set x2 near a perfect power.  */
+	  mpz_pow_ui (x2, root1, nth);
+	  if ((bsi & 2) != 0)
+	    {
+	      mpz_sub_ui (x2, x2, bsi >> 2);
+	      mpz_abs (x2, x2);
+	    }
+	  else
+	    mpz_add_ui (x2, x2, bsi >> 2);
+	  res = mpz_root (root1, x2, nth);
+	}
+
+      check_one (root1, x2, nth, res, i);
+
+      if (((nth & 1) != 0) && ((bsi & 2) != 0))
+	{
+	  mpz_neg (x2, x2);
+	  mpz_neg (root1, root1);
+	  check_one (root1, x2, nth, res, i);
+	}
+    }
+
+  mpz_clear (bs);
+  mpz_clear (x2);
+  mpz_clear (root1);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-scan.c b/vendor/gmp-6.3.0/tests/mpz/t-scan.c
new file mode 100644
index 0000000..ababcfa
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-scan.c
@@ -0,0 +1,131 @@
+/* Tests of mpz_scan0 and mpz_scan1.
+
+Copyright 2000-2003 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+unsigned long
+refmpz_scan (mpz_srcptr z, unsigned long i, int sought)
+{
+  unsigned long  z_bits = (unsigned long) ABSIZ(z) * GMP_NUMB_BITS;
+
+  do
+    {
+      if (mpz_tstbit (z, i) == sought)
+        return i;
+      i++;
+    }
+  while (i <= z_bits);
+
+  return ULONG_MAX;
+}
+
+unsigned long
+refmpz_scan0 (mpz_srcptr z, unsigned long starting_bit)
+{
+  return refmpz_scan (z, starting_bit, 0);
+}
+
+unsigned long
+refmpz_scan1 (mpz_srcptr z, unsigned long starting_bit)
+{
+  return refmpz_scan (z, starting_bit, 1);
+}
+
+
+void
+check_ref (void)
+{
+  static const int offset[] = {
+    -2, -1, 0, 1, 2, 3
+  };
+
+  mpz_t          z;
+  int            test, neg, sought, oindex, o;
+  mp_size_t      size, isize;
+  unsigned long  start, got, want;
+
+  mpz_init (z);
+  for (test = 0; test < 5; test++)
+    {
+      for (size = 0; size < 5; size++)
+        {
+          mpz_random2 (z, size);
+
+          for (neg = 0; neg <= 1; neg++)
+            {
+              if (neg)
+                mpz_neg (z, z);
+
+              for (isize = 0; isize <= size; isize++)
+                {
+                  for (oindex = 0; oindex < numberof (offset); oindex++)
+                    {
+                      o = offset[oindex];
+                      if ((int) isize*GMP_NUMB_BITS < -o)
+                        continue;  /* start would be negative */
+
+                      start = isize*GMP_NUMB_BITS + o;
+
+                      for (sought = 0; sought <= 1; sought++)
+                        {
+                          if (sought == 0)
+                            {
+                              got = mpz_scan0 (z, start);
+                              want = refmpz_scan0 (z, start);
+                            }
+                          else
+                            {
+                              got = mpz_scan1 (z, start);
+                              want = refmpz_scan1 (z, start);
+                            }
+
+                          if (got != want)
+                            {
+                              printf ("wrong at test=%d, size=%ld, neg=%d, start=%lu, sought=%d\n",
+                                      test, size, neg, start, sought);
+                              printf ("   z 0x");
+                              mpz_out_str (stdout, -16, z);
+                              printf ("\n");
+                              printf ("   got=%lu, want=%lu\n", got, want);
+                              exit (1);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+  mpz_clear (z);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_ref ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-set_d.c b/vendor/gmp-6.3.0/tests/mpz/t-set_d.c
new file mode 100644
index 0000000..1fdfc02
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-set_d.c
@@ -0,0 +1,139 @@
+/* Test mpz_set_d and mpz_init_set_d.
+
+Copyright 2000-2003, 2006 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_data (void)
+{
+  static const struct {
+    double     d;
+    mp_size_t  want_size;
+    mp_limb_t  want_data[2];
+  } data[] = {
+
+    {  0.0,  0 },
+    {  1.0,  1, { 1 } },
+    { -1.0, -1, { 1 } },
+
+    {  123.0,  1, { 123 } },
+    { -123.0, -1, { 123 } },
+
+    { 1e-1, 0, { 0 } },
+    { -1e-1, 0, { 0 } },
+    { 2.328306436538696e-10, 0, { 0 } },
+    { -2.328306436538696e-10, 0, { 0 } },
+    { 5.421010862427522e-20, 0, { 0 } },
+    { -5.421010862427522e-20, 0, { 0 } },
+    { 2.938735877055719e-39, 0, { 0 } },
+    { -2.938735877055719e-39, 0, { 0 } },
+  };
+
+  mpz_t  z;
+  int    i;
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_init (z);
+      mpz_set_d (z, data[i].d);
+      MPZ_CHECK_FORMAT (z);
+      if (z->_mp_size != data[i].want_size
+          || refmpn_cmp_allowzero (z->_mp_d, data[i].want_data,
+                                   ABS (data[i].want_size)) != 0)
+        {
+          printf ("mpz_set_d wrong on data[%d]\n", i);
+        bad:
+          d_trace   ("  d  ", data[i].d);
+          printf    ("  got  size %ld\n", (long) z->_mp_size);
+          printf    ("  want size %ld\n", (long) data[i].want_size);
+          mpn_trace ("  got  z", z->_mp_d, z->_mp_size);
+          mpn_trace ("  want z", data[i].want_data, data[i].want_size);
+          abort();
+        }
+      mpz_clear (z);
+
+      mpz_init_set_d (z, data[i].d);
+      MPZ_CHECK_FORMAT (z);
+      if (z->_mp_size != data[i].want_size
+          || refmpn_cmp_allowzero (z->_mp_d, data[i].want_data,
+                                   ABS (data[i].want_size)) != 0)
+        {
+          printf ("mpz_init_set_d wrong on data[%d]\n", i);
+          goto bad;
+        }
+      mpz_clear (z);
+    }
+}
+
+/* Try mpz_set_d on values 2^i+1, while such a value fits a double. */
+void
+check_2n_plus_1 (void)
+{
+  volatile double  p, d, diff;
+  mpz_t  want, got;
+  int    i;
+
+  mpz_init (want);
+  mpz_init (got);
+
+  p = 1.0;
+  mpz_set_ui (want, 2L);  /* gives 3 on first step */
+
+  for (i = 1; i < 500; i++)
+    {
+      mpz_mul_2exp (want, want, 1L);
+      mpz_sub_ui (want, want, 1L);   /* want = 2^i+1 */
+
+      p *= 2.0;  /* p = 2^i */
+      d = p + 1.0;
+      diff = d - p;
+      if (diff != 1.0)
+        break;   /* rounding occurred, stop now */
+
+      mpz_set_d (got, d);
+      MPZ_CHECK_FORMAT (got);
+      if (mpz_cmp (got, want) != 0)
+        {
+          printf ("mpz_set_d wrong on 2^%d+1\n", i);
+          d_trace   ("  d ", d);
+          mpz_trace ("  got  ", got);
+          mpz_trace ("  want ", want);
+          abort ();
+        }
+    }
+
+  mpz_clear (want);
+  mpz_clear (got);
+}
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_data ();
+  check_2n_plus_1 ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-set_f.c b/vendor/gmp-6.3.0/tests/mpz/t-set_f.c
new file mode 100644
index 0000000..2671a86
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-set_f.c
@@ -0,0 +1,125 @@
+/* Test mpz_set_f.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr z)
+{
+  static const int shift[] = {
+    0, 1, GMP_LIMB_BITS, 2*GMP_LIMB_BITS, 5*GMP_LIMB_BITS
+  };
+
+  int    sh, shneg, neg;
+  mpf_t  f;
+  mpz_t  got, want;
+
+  mpf_init2 (f, mpz_sizeinbase(z,2));
+  mpz_init (got);
+  mpz_init (want);
+
+  for (sh = 0; sh < numberof(shift); sh++)
+    {
+      for (shneg = 0; shneg <= 1; shneg++)
+	{
+	  for (neg = 0; neg <= 1; neg++)
+	    {
+	      mpf_set_z (f, z);
+	      mpz_set (want, z);
+
+	      if (neg)
+		{
+		  mpf_neg (f, f);
+		  mpz_neg (want, want);
+		}
+
+	      if (shneg)
+		{
+		  mpz_tdiv_q_2exp (want, want, shift[sh]);
+		  mpf_div_2exp (f, f, shift[sh]);
+		}
+	      else
+		{
+		  mpz_mul_2exp (want, want, shift[sh]);
+		  mpf_mul_2exp (f, f, shift[sh]);
+		}
+
+	      mpz_set_f (got, f);
+	      MPZ_CHECK_FORMAT (got);
+
+	      if (mpz_cmp (got, want) != 0)
+		{
+		  printf ("wrong result\n");
+		  printf ("  shift  %d\n", shneg ? -shift[sh] : shift[sh]);
+		  printf ("  neg    %d\n", neg);
+		  mpf_trace ("     f", f);
+		  mpz_trace ("   got", got);
+		  mpz_trace ("  want", want);
+		  abort ();
+		}
+	    }
+	}
+    }
+
+  mpf_clear (f);
+  mpz_clear (got);
+  mpz_clear (want);
+}
+
+
+void
+check_various (void)
+{
+  mpz_t  z;
+
+  mpz_init (z);
+
+  mpz_set_ui (z, 0L);
+  check_one (z);
+
+  mpz_set_si (z, 123L);
+  check_one (z);
+
+  mpz_rrandomb (z, RANDS, 2*GMP_LIMB_BITS);
+  check_one (z);
+
+  mpz_rrandomb (z, RANDS, 5*GMP_LIMB_BITS);
+  check_one (z);
+
+  mpz_clear (z);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+#if GMP_NAIL_BITS == 0
+  tests_start ();
+  mp_trace_base = 16;
+
+  check_various ();
+
+  tests_end ();
+#endif
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-set_si.c b/vendor/gmp-6.3.0/tests/mpz/t-set_si.c
new file mode 100644
index 0000000..4e8ed7a
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-set_si.c
@@ -0,0 +1,96 @@
+/* Test mpz_set_si and mpz_init_set_si.
+
+Copyright 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_data (void)
+{
+#if GMP_NUMB_BITS <= BITS_PER_ULONG
+#define ENTRY(n)   { n, { n, 0 } }
+#else
+#define ENTRY(n)   { n, { (n) & GMP_NUMB_MASK, (n) >> GMP_NUMB_BITS } }
+#endif
+
+  static const struct {
+    long       n;
+    mp_size_t  want_size;
+    mp_limb_t  want_data[2];
+  } data[] = {
+
+    {  0L,  0 },
+    {  1L,  1, { 1 } },
+    { -1L, -1, { 1 } },
+
+#if GMP_NUMB_BITS >= BITS_PER_ULONG
+    { LONG_MAX,  1, { LONG_MAX, 0 } },
+    { -LONG_MAX,  -1, { LONG_MAX, 0 } },
+    { LONG_HIGHBIT,  -1, { ULONG_HIGHBIT, 0 } },
+#else
+    { LONG_MAX,  2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS } },
+    { -LONG_MAX,  -2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS }},
+    { LONG_HIGHBIT,  -2, { 0, ULONG_HIGHBIT >> GMP_NUMB_BITS } },
+#endif
+  };
+
+  mpz_t  n;
+  int    i;
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_init (n);
+      mpz_set_si (n, data[i].n);
+      MPZ_CHECK_FORMAT (n);
+      if (n->_mp_size != data[i].want_size
+          || refmpn_cmp_allowzero (n->_mp_d, data[i].want_data,
+                                   ABS (data[i].want_size)) != 0)
+        {
+          printf ("mpz_set_si wrong on data[%d]\n", i);
+          abort();
+        }
+      mpz_clear (n);
+
+      mpz_init_set_si (n, data[i].n);
+      MPZ_CHECK_FORMAT (n);
+      if (n->_mp_size != data[i].want_size
+          || refmpn_cmp_allowzero (n->_mp_d, data[i].want_data,
+                                   ABS (data[i].want_size)) != 0)
+        {
+          printf ("mpz_init_set_si wrong on data[%d]\n", i);
+          abort();
+        }
+      mpz_clear (n);
+    }
+}
+
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-set_str.c b/vendor/gmp-6.3.0/tests/mpz/t-set_str.c
new file mode 100644
index 0000000..22d36d3
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-set_str.c
@@ -0,0 +1,108 @@
+/* Test mpz_set_str.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr want, int fail, int base, const char *str)
+{
+  mpz_t   got;
+
+  MPZ_CHECK_FORMAT (want);
+  mp_trace_base = (base == 0 ? 16 : base);
+
+  mpz_init (got);
+
+  if (mpz_set_str (got, str, base) != fail)
+    {
+      printf ("mpz_set_str unexpectedly failed\n");
+      printf ("  base %d\n", base);
+      printf ("  str  \"%s\"\n", str);
+      abort ();
+    }
+  MPZ_CHECK_FORMAT (got);
+
+  if (fail == 0 && mpz_cmp (got, want) != 0)
+    {
+      printf ("mpz_set_str wrong\n");
+      printf ("  base %d\n", base);
+      printf ("  str  \"%s\"\n", str);
+      mpz_trace ("got ", got);
+      mpz_trace ("want", want);
+      abort ();
+    }
+
+  mpz_clear (got);
+}
+
+void
+check_samples (void)
+{
+  mpz_t  z;
+
+  mpz_init (z);
+
+  mpz_set_ui (z, 0L);
+  check_one (z, 0, 0, "0 ");
+  check_one (z, 0, 0, " 0 0 0 ");
+  check_one (z, 0, 0, " -0B 0 ");
+  check_one (z, 0, 0, "  0X 0 ");
+  check_one (z, 0, 10, "0 ");
+  check_one (z, 0, 10, "-0   ");
+  check_one (z, 0, 10, " 0 000 000    ");
+
+  mpz_set_ui (z, 123L);
+  check_one (z, 0, 0, "123 ");
+  check_one (z, 0, 0, "123    ");
+  check_one (z, 0, 0, "0173   ");
+  check_one (z, 0, 0, " 0b 1 11 10 11  ");
+  check_one (z, 0, 0, " 0x 7b ");
+  check_one (z, 0, 0, "0x7B");
+  check_one (z, 0, 10, "123 ");
+  check_one (z, 0, 10, "123    ");
+  check_one (z, 0, 0, " 123 ");
+  check_one (z, 0, 0, "  123    ");
+  check_one (z, 0, 10, "  0000123 ");
+  check_one (z, 0, 10, "  123    ");
+  check_one (z,-1, 10, "1%");
+  check_one (z,-1, 0, "3!");
+  check_one (z,-1, 0, "0123456789");
+  check_one (z,-1, 0, "13579BDF");
+  check_one (z,-1, 0, "0b0102");
+  check_one (z,-1, 0, "0x010G");
+  check_one (z,-1, 37,"0x010G");
+  check_one (z,-1, 99,"0x010G");
+
+  mpz_clear (z);
+}
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_samples ();
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-sizeinbase.c b/vendor/gmp-6.3.0/tests/mpz/t-sizeinbase.c
new file mode 100644
index 0000000..936f2bd
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-sizeinbase.c
@@ -0,0 +1,89 @@
+/* Test mpz_sizeinbase.
+
+Copyright 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+#if 0
+  /* Disabled due to the bogosity of trying to fake an _mp_d pointer to
+     below an object.  Has been seen to fail on a hppa system and on ia64.  */
+
+
+/* Create a fake mpz consisting of just a single 1 bit, with totbits being
+   the total number of bits, inclusive of that 1 bit.  */
+void
+mpz_fake_bits (mpz_ptr z, unsigned long totbits)
+{
+  static mp_limb_t  n;
+  unsigned long     zero_bits, zero_limbs;
+
+  zero_bits = totbits - 1;
+  zero_limbs = zero_bits / GMP_NUMB_BITS;
+  zero_bits %= GMP_NUMB_BITS;
+
+  SIZ(z) = zero_limbs + 1;
+  PTR(z) = (&n) - (SIZ(z) - 1);
+  n = CNST_LIMB(1) << zero_bits;
+
+  ASSERT_ALWAYS (mpz_sizeinbase (z, 2) == totbits);
+}
+
+
+/* This was seen to fail on a GNU/Linux powerpc32 with gcc 2.95.2,
+   apparently due to a doubtful value of mp_bases[10].chars_per_bit_exactly
+   (0X1.34413509F79FDP-2 whereas 0X1.34413509F79FFP-2 is believed correct).
+   Presumably this is a glibc problem when gcc converts the decimal string
+   in mp_bases.c, or maybe it's only a function of the rounding mode during
+   compilation.  */
+void
+check_sample (void)
+{
+  unsigned long  totbits = 198096465;
+  int        base = 10;
+  size_t     want = 59632979;
+  size_t     got;
+  mpz_t      z;
+
+  mpz_fake_bits (z, totbits);
+  got = mpz_sizeinbase (z, base);
+  if (got != want)
+    {
+      printf ("mpz_sizeinbase\n");
+      printf ("  base    %d\n",  base);
+      printf ("  totbits %lu\n", totbits);
+      printf ("  got     %u\n",  got);
+      printf ("  want    %u\n",  want);
+      abort ();
+    }
+}
+#endif
+
+int
+main (void)
+{
+  tests_start ();
+
+  /* check_sample (); */
+
+  tests_end ();
+  exit (0);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-sqrtrem.c b/vendor/gmp-6.3.0/tests/mpz/t-sqrtrem.c
new file mode 100644
index 0000000..9db8a61
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-sqrtrem.c
@@ -0,0 +1,122 @@
+/* Test mpz_add, mpz_add_ui, mpz_cmp, mpz_cmp, mpz_mul, mpz_sqrtrem.
+
+Copyright 1991, 1993, 1994, 1996, 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (mpz_t, mpz_t, mpz_t);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t x2;
+  mpz_t x, rem;
+  mpz_t temp, temp2;
+  mp_size_t x2_size;
+  int i;
+  int reps = 1000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long size_range;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (x2);
+  mpz_init (x);
+  mpz_init (rem);
+  mpz_init (temp);
+  mpz_init (temp2);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 17 + 2; /* 0..262144 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      x2_size = mpz_get_ui (bs);
+      mpz_rrandomb (x2, rands, x2_size);
+
+      /* printf ("%ld\n", SIZ (x2)); */
+
+      mpz_sqrt (temp, x2);
+      MPZ_CHECK_FORMAT (temp);
+
+      mpz_sqrtrem (x, rem, x2);
+      MPZ_CHECK_FORMAT (x);
+      MPZ_CHECK_FORMAT (rem);
+
+      /* Are results different?  */
+      if (mpz_cmp (temp, x) != 0)
+	dump_abort (x2, x, rem);
+
+      mpz_mul (temp, x, x);
+
+      /* Is square of result > argument?  */
+      if (mpz_cmp (temp, x2) > 0)
+	dump_abort (x2, x, rem);
+
+      mpz_add_ui (temp2, x, 1);
+      mpz_mul (temp2, temp2, temp2);
+
+      /* Is square of (result + 1) <= argument?  */
+      if (mpz_cmp (temp2, x2) <= 0)
+	dump_abort (x2, x, rem);
+
+      mpz_add (temp2, temp, rem);
+
+      /* Is the remainder wrong?  */
+      if (mpz_cmp (x2, temp2) != 0)
+	dump_abort (x2, x, rem);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (x2);
+  mpz_clear (x);
+  mpz_clear (rem);
+  mpz_clear (temp);
+  mpz_clear (temp2);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (mpz_t x2, mpz_t x, mpz_t rem)
+{
+  fprintf (stderr, "ERROR\n");
+  fprintf (stderr, "x2        = "); debug_mp (x2, -16);
+  fprintf (stderr, "x         = "); debug_mp (x, -16);
+  fprintf (stderr, "remainder = "); debug_mp (rem, -16);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-tdiv.c b/vendor/gmp-6.3.0/tests/mpz/t-tdiv.c
new file mode 100644
index 0000000..3d2eb36
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-tdiv.c
@@ -0,0 +1,145 @@
+/* Test mpz_abs, mpz_add, mpz_cmp, mpz_cmp_ui, mpz_tdiv_qr, mpz_tdiv_q,
+   mpz_tdiv_r, mpz_mul.
+
+Copyright 1991, 1993, 1994, 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (mpz_t, mpz_t);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t dividend, divisor;
+  mpz_t quotient, remainder;
+  mpz_t quotient2, remainder2;
+  mpz_t temp;
+  mp_size_t dividend_size, divisor_size;
+  int i;
+  int reps = 1000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  TESTS_REPS (reps, argv, argc);
+
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  mpz_init (dividend);
+  mpz_init (divisor);
+  mpz_init (quotient);
+  mpz_init (remainder);
+  mpz_init (quotient2);
+  mpz_init (remainder2);
+  mpz_init (temp);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 18 + 2; /* 0..524288 bit operands */
+
+      do
+	{
+	  mpz_urandomb (bs, rands, size_range);
+	  divisor_size = mpz_get_ui (bs);
+	  mpz_rrandomb (divisor, rands, divisor_size);
+	}
+      while (mpz_sgn (divisor) == 0);
+
+      mpz_urandomb (bs, rands, size_range);
+      dividend_size = mpz_get_ui (bs) + divisor_size;
+      mpz_rrandomb (dividend, rands, dividend_size);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (dividend, dividend);
+      if ((bsi & 2) != 0)
+	mpz_neg (divisor, divisor);
+
+      /* printf ("%ld %ld\n", SIZ (dividend), SIZ (divisor)); */
+
+      mpz_tdiv_qr (quotient, remainder, dividend, divisor);
+      mpz_tdiv_q (quotient2, dividend, divisor);
+      mpz_tdiv_r (remainder2, dividend, divisor);
+
+      /* First determine that the quotients and remainders computed
+	 with different functions are equal.  */
+      if (mpz_cmp (quotient, quotient2) != 0)
+	dump_abort (dividend, divisor);
+      if (mpz_cmp (remainder, remainder2) != 0)
+	dump_abort (dividend, divisor);
+
+      /* Check if the sign of the quotient is correct.  */
+      if (mpz_cmp_ui (quotient, 0) != 0)
+	if ((mpz_cmp_ui (quotient, 0) < 0)
+	    != ((mpz_cmp_ui (dividend, 0) ^ mpz_cmp_ui (divisor, 0)) < 0))
+	dump_abort (dividend, divisor);
+
+      /* Check if the remainder has the same sign as the dividend
+	 (quotient rounded towards 0).  */
+      if (mpz_cmp_ui (remainder, 0) != 0)
+	if ((mpz_cmp_ui (remainder, 0) < 0) != (mpz_cmp_ui (dividend, 0) < 0))
+	  dump_abort (dividend, divisor);
+
+      mpz_mul (temp, quotient, divisor);
+      mpz_add (temp, temp, remainder);
+      if (mpz_cmp (temp, dividend) != 0)
+	dump_abort (dividend, divisor);
+
+      mpz_abs (temp, divisor);
+      mpz_abs (remainder, remainder);
+      if (mpz_cmp (remainder, temp) >= 0)
+	dump_abort (dividend, divisor);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (dividend);
+  mpz_clear (divisor);
+  mpz_clear (quotient);
+  mpz_clear (remainder);
+  mpz_clear (quotient2);
+  mpz_clear (remainder2);
+  mpz_clear (temp);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (mpz_t dividend, mpz_t divisor)
+{
+  fprintf (stderr, "ERROR\n");
+  fprintf (stderr, "dividend = "); debug_mp (dividend, -16);
+  fprintf (stderr, "divisor  = "); debug_mp (divisor, -16);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}
diff --git a/vendor/gmp-6.3.0/tests/mpz/t-tdiv_ui.c b/vendor/gmp-6.3.0/tests/mpz/t-tdiv_ui.c
new file mode 100644
index 0000000..6bbb947
--- /dev/null
+++ b/vendor/gmp-6.3.0/tests/mpz/t-tdiv_ui.c
@@ -0,0 +1,158 @@
+/* Test mpz_abs, mpz_add, mpz_cmp, mpz_cmp_ui, mpz_tdiv_qr_ui, mpz_tdiv_q_ui,
+   mpz_tdiv_r_ui, mpz_tdiv_ui, mpz_mul_ui.
+
+Copyright 1993, 1994, 1996, 2000-2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+void dump_abort (const char *, mpz_t, unsigned long);
+void debug_mp (mpz_t, int);
+
+int
+main (int argc, char **argv)
+{
+  mpz_t dividend;
+  mpz_t quotient, remainder;
+  mpz_t quotient2, remainder2;
+  mpz_t temp;
+  mp_size_t dividend_size;
+  unsigned long divisor;
+  int i;
+  int reps = 200000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+  unsigned long r_rq, r_q, r_r, r;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (dividend);
+  mpz_init (quotient);
+  mpz_init (remainder);
+  mpz_init (quotient2);
+  mpz_init (remainder2);
+  mpz_init (temp);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + 2; /* 0..2047 bit operands */
+
+      do
+	{
+	  mpz_rrandomb (bs, rands, 64);
+	  divisor = mpz_get_ui (bs);
+	}
+      while (divisor == 0);
+
+      mpz_urandomb (bs, rands, size_range);
+      dividend_size = mpz_get_ui (bs);
+      mpz_rrandomb (dividend, rands, dividend_size);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+	mpz_neg (dividend, dividend);
+
+      /* printf ("%ld\n", SIZ (dividend)); */
+
+      r_rq = mpz_tdiv_qr_ui (quotient, remainder, dividend, divisor);
+      r_q = mpz_tdiv_q_ui (quotient2, dividend, divisor);
+      r_r = mpz_tdiv_r_ui (remainder2, dividend, divisor);
+      r = mpz_tdiv_ui (dividend, divisor);
+
+      /* First determine that the quotients and remainders computed
+	 with different functions are equal.  */
+      if (mpz_cmp (quotient, quotient2) != 0)
+	dump_abort ("quotients from mpz_tdiv_qr_ui and mpz_tdiv_q_ui differ",
+		    dividend, divisor);
+      if (mpz_cmp (remainder, remainder2) != 0)
+	dump_abort ("remainders from mpz_tdiv_qr_ui and mpz_tdiv_r_ui differ",
+		    dividend, divisor);
+
+      /* Check if the sign of the quotient is correct.  */
+      if (mpz_cmp_ui (quotient, 0) != 0)
+	if ((mpz_cmp_ui (quotient, 0) < 0)
+	    != (mpz_cmp_ui (dividend, 0) < 0))
+	dump_abort ("quotient sign wrong", dividend, divisor);
+
+      /* Check if the remainder has the same sign as the dividend
+	 (quotient rounded towards 0).  */
+      if (mpz_cmp_ui (remainder, 0) != 0)
+	if ((mpz_cmp_ui (remainder, 0) < 0) != (mpz_cmp_ui (dividend, 0) < 0))
+	  dump_abort ("remainder sign wrong", dividend, divisor);
+
+      mpz_mul_ui (temp, quotient, divisor);
+      mpz_add (temp, temp, remainder);
+      if (mpz_cmp (temp, dividend) != 0)
+	dump_abort ("n mod d != n - [n/d]*d", dividend, divisor);
+
+      mpz_abs (remainder, remainder);
+      if (mpz_cmp_ui (remainder, divisor) >= 0)
+	dump_abort ("remainder greater than divisor", dividend, divisor);
+
+      if (mpz_cmp_ui (remainder, r_rq) != 0)
+	dump_abort ("remainder returned from mpz_tdiv_qr_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r_q) != 0)
+	dump_abort ("remainder returned from mpz_tdiv_q_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r_r) != 0)
+	dump_abort ("remainder returned from mpz_tdiv_r_ui is wrong",
+		    dividend, divisor);
+      if (mpz_cmp_ui (remainder, r) != 0)
+	dump_abort ("remainder returned from mpz_tdiv_ui is wrong",
+		    dividend, divisor);
+    }
+
+  mpz_clear (bs);
+  mpz_clear (dividend);
+  mpz_clear (quotient);
+  mpz_clear (remainder);
+  mpz_clear (quotient2);
+  mpz_clear (remainder2);
+  mpz_clear (temp);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (const char *str, mpz_t dividend, unsigned long divisor)
+{
+  fprintf (stderr, "ERROR: %s\n", str);
+  fprintf (stderr, "dividend = "); debug_mp (dividend, -16);
+  fprintf (stderr, "divisor  = %lX\n", divisor);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}