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/* mpq_neg -- negate a rational.
Copyright 2000, 2001, 2012 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/. */
#define __GMP_FORCE_mpq_neg 1
#include "gmp.h"
#include "gmp-impl.h"
void
mpq_neg (mpq_ptr dst, mpq_srcptr src)
{
mp_size_t num_size = SIZ(NUM(src));
if (src != dst)
{
mp_size_t size;
mp_ptr dp;
size = ABS(num_size);
dp = MPZ_NEWALLOC (NUM(dst), size);
MPN_COPY (dp, PTR(NUM(src)), size);
size = SIZ(DEN(src));
dp = MPZ_NEWALLOC (DEN(dst), size);
SIZ(DEN(dst)) = size;
MPN_COPY (dp, PTR(DEN(src)), size);
}
SIZ(NUM(dst)) = -num_size;
}
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