version 1.1.1.2, 2000/09/09 14:13:05 |
version 1.1.1.3, 2003/08/25 16:06:34 |
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/* mpq_neg(dst, src) -- Assign the negated value of SRC to DST. |
/* mpq_neg -- negate a rational. |
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Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc. |
Copyright 2000, 2001 Free Software Foundation, Inc. |
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This file is part of the GNU MP Library. |
This file is part of the GNU MP Library. |
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Line 19 along with the GNU MP Library; see the file COPYING.LI |
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Line 19 along with the GNU MP Library; see the file COPYING.LI |
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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. */ |
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#define __GMP_FORCE_mpq_neg 1 |
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#include "gmp.h" |
#include "gmp.h" |
#include "gmp-impl.h" |
#include "gmp-impl.h" |
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void |
void |
#if __STDC__ |
mpq_neg (mpq_ptr dst, mpq_srcptr src) |
mpq_neg (MP_RAT *dst, const MP_RAT *src) |
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#else |
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mpq_neg (dst, src) |
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MP_RAT *dst; |
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const MP_RAT *src; |
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#endif |
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{ |
{ |
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); |
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if (src != dst) |
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{ |
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mp_size_t num_abs_size = ABS(num_size); |
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mp_size_t den_size = src->_mp_den._mp_size; |
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MPZ_REALLOC (mpq_numref(dst), num_abs_size); |
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MPZ_REALLOC (mpq_denref(dst), den_size); |
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MPN_COPY (dst->_mp_num._mp_d, src->_mp_num._mp_d, num_abs_size); |
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MPN_COPY (dst->_mp_den._mp_d, src->_mp_den._mp_d, den_size); |
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dst->_mp_den._mp_size = den_size; |
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} |
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dst->_mp_num._mp_size = -num_size; |
} |
} |