stk/Mp/gmp-1.3.2/mpz_set.c

46 lines
1.3 KiB
C

/* mpz_set (dest_integer, src_integer) -- Assign DEST_INTEGER from SRC_INTEGER.
Copyright (C) 1991 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 General Public License as published by
the Free Software Foundation; either version 2, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU MP Library; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "gmp.h"
#include "gmp-impl.h"
void
#ifdef __STDC__
mpz_set (MP_INT *w, const MP_INT *u)
#else
mpz_set (w, u)
MP_INT *w;
const MP_INT *u;
#endif
{
mp_size usize;
mp_size abs_usize;
usize = u->size;
abs_usize = ABS (usize);
/* If not space for sum (and possible carry), increase space. */
if (w->alloc < abs_usize)
_mpz_realloc (w, abs_usize);
w->size = usize;
MPN_COPY (w->d, u->d, abs_usize);
}