diff options
author | Peter Breitenlohner <peb@mppmu.mpg.de> | 2014-06-18 11:12:01 +0000 |
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committer | Peter Breitenlohner <peb@mppmu.mpg.de> | 2014-06-18 11:12:01 +0000 |
commit | 0c2f0333a4e539325da80cdf3fb182cd17134665 (patch) | |
tree | de5daa66b5595292a33c25110aa58ff8bff75543 /Build/source/libs/gmp/gmp-6.0.0/mpq/set_str.c | |
parent | db612d5045ef55da386a2c3350d4811d1da1a858 (diff) |
Add libs/gmp and libs/mpfr in preparation for MetaPost 2.0
git-svn-id: svn://tug.org/texlive/trunk@34274 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpq/set_str.c')
-rw-r--r-- | Build/source/libs/gmp/gmp-6.0.0/mpq/set_str.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpq/set_str.c b/Build/source/libs/gmp/gmp-6.0.0/mpq/set_str.c new file mode 100644 index 00000000000..930fe5576c0 --- /dev/null +++ b/Build/source/libs/gmp/gmp-6.0.0/mpq/set_str.c @@ -0,0 +1,69 @@ +/* mpq_set_str -- string to mpq conversion. + +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 <stdio.h> +#include <string.h> +#include "gmp.h" +#include "gmp-impl.h" + + +/* FIXME: Would like an mpz_set_mem (or similar) accepting a pointer and + length so we wouldn't have to copy the numerator just to null-terminate + it. */ + +int +mpq_set_str (mpq_ptr q, const char *str, int base) +{ + const char *slash; + char *num; + size_t numlen; + int ret; + + slash = strchr (str, '/'); + if (slash == NULL) + { + SIZ(DEN(q)) = 1; + PTR(DEN(q))[0] = 1; + + return mpz_set_str (mpq_numref(q), str, base); + } + + numlen = slash - str; + num = __GMP_ALLOCATE_FUNC_TYPE (numlen+1, char); + memcpy (num, str, numlen); + num[numlen] = '\0'; + ret = mpz_set_str (mpq_numref(q), num, base); + (*__gmp_free_func) (num, numlen+1); + + if (ret != 0) + return ret; + + return mpz_set_str (mpq_denref(q), slash+1, base); +} |