From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/mpq/set_str.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 gmp-6.3.0/mpq/set_str.c (limited to 'gmp-6.3.0/mpq/set_str.c') diff --git a/gmp-6.3.0/mpq/set_str.c b/gmp-6.3.0/mpq/set_str.c new file mode 100644 index 0000000..664bb2d --- /dev/null +++ b/gmp-6.3.0/mpq/set_str.c @@ -0,0 +1,68 @@ +/* mpq_set_str -- string to mpq conversion. + +Copyright 2001, 2002, 2015, 2018 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 +#include +#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; + MPZ_NEWALLOC (DEN(q), 1)[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_TYPE (num, numlen+1, char); + + if (ret != 0) + return ret; + + return mpz_set_str (mpq_denref(q), slash+1, base); +} -- cgit v1.2.3