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b58ddff026
* merged mpfr 3.0.0 and gmp 5.0.1 in buildtools trunk git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@37378 a95241bf-73f2-0310-859d-f6bbb57e9c96
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/* operator>> -- C++-style input of mpq_t.
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Copyright 2003 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
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#include <cctype>
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#include <iostream>
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#include <string>
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#include "gmp.h"
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#include "gmp-impl.h"
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using namespace std;
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istream &
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operator>> (istream &i, mpq_ptr q)
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{
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if (! (i >> mpq_numref(q)))
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return i;
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char c = 0;
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i.get(c); // start reading
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if (c == '/')
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{
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// skip slash, read denominator
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i.get(c);
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return __gmpz_operator_in_nowhite (i, mpq_denref(q), c);
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}
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else
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{
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// no denominator, set 1
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q->_mp_den._mp_size = 1;
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q->_mp_den._mp_d[0] = 1;
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if (i.good())
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i.putback(c);
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else if (i.eof())
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i.clear();
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}
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return i;
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}
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