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/* 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 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.
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 Lesser General Public
License for more details.
You should have received a copy of 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);
}
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