1 /* mpz_neg(MP_INT *dst, MP_INT *src) -- Assign the negated value of SRC to DST.
3 Copyright (C) 1991 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 The GNU MP Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with the GNU MP Library; see the file COPYING. If not, write to
19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
26 mpz_neg (MP_INT *dst, const MP_INT *src)
33 mp_size src_size = src->size;
37 mp_size abs_src_size = ABS (src_size);
39 if (dst->alloc < abs_src_size)
40 _mpz_realloc (dst, abs_src_size);
42 MPN_COPY (dst->d, src->d, abs_src_size);
45 dst->size = -src_size;