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/* mpq_inp_str -- read an mpq from a FILE.
Copyright 2001 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 http://www.gnu.org/licenses/. */
#include <stdio.h>
#include <ctype.h>
#include "gmp.h"
#include "gmp-impl.h"
size_t
mpq_inp_str (mpq_ptr q, FILE *fp, int base)
{
size_t nread;
int c;
if (fp == NULL)
fp = stdin;
q->_mp_den._mp_size = 1;
q->_mp_den._mp_d[0] = 1;
nread = mpz_inp_str (mpq_numref(q), fp, base);
if (nread == 0)
return 0;
c = getc (fp);
nread++;
if (c == '/')
{
c = getc (fp);
nread++;
nread = mpz_inp_str_nowhite (mpq_denref(q), fp, base, c, nread);
if (nread == 0)
{
q->_mp_num._mp_size = 0;
q->_mp_den._mp_size = 1;
q->_mp_den._mp_d[0] = 1;
}
}
else
{
ungetc (c, fp);
nread--;
}
return nread;
}
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