diff options
Diffstat (limited to 'rts/gmp/mpz/swap.c')
| -rw-r--r-- | rts/gmp/mpz/swap.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/rts/gmp/mpz/swap.c b/rts/gmp/mpz/swap.c new file mode 100644 index 0000000000..0070d6ff24 --- /dev/null +++ b/rts/gmp/mpz/swap.c @@ -0,0 +1,52 @@ +/* mpz_swap (dest_integer, src_integer) -- Swap U and V. + +Copyright (C) 1997, 1998 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 2.1 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; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include "gmp.h" +#include "gmp-impl.h" + +void +#if __STDC__ +mpz_swap (mpz_ptr u, mpz_ptr v) +#else +mpz_swap (u, v) + mpz_ptr u; + mpz_ptr v; +#endif +{ + mp_ptr up, vp; + mp_size_t usize, vsize; + mp_size_t ualloc, valloc; + + ualloc = u->_mp_alloc; + valloc = v->_mp_alloc; + v->_mp_alloc = ualloc; + u->_mp_alloc = valloc; + + usize = u->_mp_size; + vsize = v->_mp_size; + v->_mp_size = usize; + u->_mp_size = vsize; + + up = u->_mp_d; + vp = v->_mp_d; + v->_mp_d = up; + u->_mp_d = vp; +} |