version 1.1.1.1, 2000/01/10 15:35:26 |
version 1.1.1.3, 2003/08/25 16:06:34 |
|
|
/* mpq_neg(dst, src) -- Assign the negated value of SRC to DST. |
/* mpq_neg -- negate a rational. |
|
|
Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc. |
Copyright 2000, 2001 Free Software Foundation, Inc. |
|
|
This file is part of the GNU MP Library. |
This file is part of the GNU MP Library. |
|
|
The GNU MP Library is free software; you can redistribute it and/or modify |
The GNU MP Library is free software; you can redistribute it and/or modify |
it under the terms of the GNU Library General Public License as published by |
it under the terms of the GNU Lesser General Public License as published by |
the Free Software Foundation; either version 2 of the License, or (at your |
the Free Software Foundation; either version 2.1 of the License, or (at your |
option) any later version. |
option) any later version. |
|
|
The GNU MP Library is distributed in the hope that it will be useful, but |
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 |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
License for more details. |
License for more details. |
|
|
You should have received a copy of the GNU Library General Public License |
You should have received a copy of the GNU Lesser General Public License |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
MA 02111-1307, USA. */ |
MA 02111-1307, USA. */ |
|
|
|
#define __GMP_FORCE_mpq_neg 1 |
|
|
#include "gmp.h" |
#include "gmp.h" |
#include "gmp-impl.h" |
#include "gmp-impl.h" |
|
|
|
|
void |
void |
#if __STDC__ |
mpq_neg (mpq_ptr dst, mpq_srcptr src) |
mpq_neg (MP_RAT *dst, const MP_RAT *src) |
|
#else |
|
mpq_neg (dst, src) |
|
MP_RAT *dst; |
|
const MP_RAT *src; |
|
#endif |
|
{ |
{ |
mpz_neg (&dst->_mp_num, &src->_mp_num); |
mp_size_t num_size = src->_mp_num._mp_size; |
mpz_set (&dst->_mp_den, &src->_mp_den); |
|
|
if (src != dst) |
|
{ |
|
mp_size_t num_abs_size = ABS(num_size); |
|
mp_size_t den_size = src->_mp_den._mp_size; |
|
|
|
MPZ_REALLOC (mpq_numref(dst), num_abs_size); |
|
MPZ_REALLOC (mpq_denref(dst), den_size); |
|
|
|
MPN_COPY (dst->_mp_num._mp_d, src->_mp_num._mp_d, num_abs_size); |
|
MPN_COPY (dst->_mp_den._mp_d, src->_mp_den._mp_d, den_size); |
|
|
|
dst->_mp_den._mp_size = den_size; |
|
} |
|
|
|
dst->_mp_num._mp_size = -num_size; |
} |
} |