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/* operator>> -- C++-style input of mpq_t.
Copyright 2003 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 <cctype>
#include <iostream>
#include <string>
#include "gmp.h"
#include "gmp-impl.h"
using namespace std;
istream &
operator>> (istream &i, mpq_ptr q)
{
if (! (i >> mpq_numref(q)))
return i;
char c = 0;
i.get(c); // start reading
if (c == '/')
{
// skip slash, read denominator
i.get(c);
return __gmpz_operator_in_nowhite (i, mpq_denref(q), c);
}
else
{
// no denominator, set 1
q->_mp_den._mp_size = 1;
q->_mp_den._mp_d[0] = 1;
if (i.good())
i.putback(c);
else if (i.eof())
i.clear(ios::eofbit);
}
return i;
}
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