diff options
Diffstat (limited to 'vendor/gmp-6.3.0/tests/mpq/t-inv.c')
-rw-r--r-- | vendor/gmp-6.3.0/tests/mpq/t-inv.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/vendor/gmp-6.3.0/tests/mpq/t-inv.c b/vendor/gmp-6.3.0/tests/mpq/t-inv.c new file mode 100644 index 0000000..87ba8d4 --- /dev/null +++ b/vendor/gmp-6.3.0/tests/mpq/t-inv.c @@ -0,0 +1,60 @@ +/* Test mpq_inv (and set/get_num/den). + +Copyright 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 "gmp-impl.h" +#include "tests.h" + +int +main (int argc, char **argv) +{ + mpq_t a, b; + mpz_t m, n; + const char* s = "-420000000000000000000000"; + + tests_start (); + + mpq_inits (a, b, (mpq_ptr)0); + mpz_inits (m, n, (mpz_ptr)0); + + mpz_set_ui (m, 13); + mpq_set_den (a, m); + mpz_set_str (m, s, 0); + mpq_set_num (a, m); + MPQ_CHECK_FORMAT (a); + mpq_inv (b, a); + MPQ_CHECK_FORMAT (b); + mpq_get_num (n, b); + ASSERT_ALWAYS (mpz_cmp_si (n, -13) == 0); + mpq_neg (b, b); + mpq_inv (a, b); + MPQ_CHECK_FORMAT (a); + mpq_inv (b, b); + MPQ_CHECK_FORMAT (b); + mpq_get_den (n, b); + ASSERT_ALWAYS (mpz_cmp_ui (n, 13) == 0); + mpq_get_num (n, a); + mpz_add (n, n, m); + ASSERT_ALWAYS (mpz_sgn (n) == 0); + + mpq_clears (a, b, (mpq_ptr)0); + mpz_clears (m, n, (mpz_ptr)0); + + tests_end (); + return 0; +} |