abs.c
上传用户:qaz666999
上传日期:2022-08-06
资源大小:2570k
文件大小:1k
- /* mpz_abs(dst, src) -- Assign the absolute value of SRC to DST.
- Copyright 1991, 1993, 1994, 1995, 2001 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_mpz_abs 1
- #include "gmp.h"
- #include "gmp-impl.h"
- void
- mpz_abs (mpz_ptr w, mpz_srcptr u)
- {
- mp_ptr wp, up;
- mp_size_t size;
- size = ABS (u->_mp_size);
- if (u != w)
- {
- if (w->_mp_alloc < size)
- _mpz_realloc (w, size);
- wp = w->_mp_d;
- up = u->_mp_d;
- MPN_COPY (wp, up, size);
- }
- w->_mp_size = size;
- }