diff options
author | Thomas Voss <mail@thomasvoss.com> | 2024-06-21 23:36:36 +0200 |
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committer | Thomas Voss <mail@thomasvoss.com> | 2024-06-21 23:42:26 +0200 |
commit | a89a14ef5da44684a16b204e7a70460cc8c4922a (patch) | |
tree | b23b4c6b155977909ef508fdae2f48d33d802813 /vendor/gmp-6.3.0/cxx/osmpf.cc | |
parent | 1db63fcedab0b288820d66e100b1877b1a5a8851 (diff) |
Basic constant folding implementation
Diffstat (limited to 'vendor/gmp-6.3.0/cxx/osmpf.cc')
-rw-r--r-- | vendor/gmp-6.3.0/cxx/osmpf.cc | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/vendor/gmp-6.3.0/cxx/osmpf.cc b/vendor/gmp-6.3.0/cxx/osmpf.cc new file mode 100644 index 0000000..fd875db --- /dev/null +++ b/vendor/gmp-6.3.0/cxx/osmpf.cc @@ -0,0 +1,70 @@ +/* operator<< -- mpf formatted output to an ostream. + +Copyright 2001, 2002 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +The GNU MP Library 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 copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include <clocale> +#include <iostream> +#include <stdarg.h> /* for va_list and hence doprnt_funs_t */ +#include <string.h> + +#include "gmp-impl.h" + +using namespace std; + + +/* The gmp_asprintf support routines never give an error, so + __gmp_doprnt_mpf shouldn't fail and it's return can just be checked with + an ASSERT. */ + +ostream& +operator<< (ostream &o, mpf_srcptr f) +{ + struct doprnt_params_t param; + struct gmp_asprintf_t d; + char *result; + int ret; + + __gmp_doprnt_params_from_ios (¶m, o); + +#if HAVE_STD__LOCALE + char point[2]; + point[0] = use_facet< numpunct<char> >(o.getloc()).decimal_point(); + point[1] = '\0'; +#else + const char *point = GMP_DECIMAL_POINT; +#endif + + GMP_ASPRINTF_T_INIT (d, &result); + ret = __gmp_doprnt_mpf (&__gmp_asprintf_funs_noformat, &d, ¶m, point, f); + ASSERT (ret != -1); + __gmp_asprintf_final (&d); + + gmp_allocated_string t (result); + return o.write (t.str, t.len); +} |