diff options
Diffstat (limited to 'vendor/gmp-6.3.0/mpz/set_si.c')
-rw-r--r-- | vendor/gmp-6.3.0/mpz/set_si.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/vendor/gmp-6.3.0/mpz/set_si.c b/vendor/gmp-6.3.0/mpz/set_si.c new file mode 100644 index 0000000..973aef8 --- /dev/null +++ b/vendor/gmp-6.3.0/mpz/set_si.c @@ -0,0 +1,55 @@ +/* mpz_set_si(dest,val) -- Assign DEST with a small value VAL. + +Copyright 1991, 1993-1995, 2000-2002, 2012, 2015 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 either: + + * 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. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +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 copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include "gmp-impl.h" + +void +mpz_set_si (mpz_ptr dest, signed long int val) +{ + mp_size_t size; + mp_limb_t vl; + + vl = (mp_limb_t) ABS_CAST (unsigned long int, val); + + MPZ_NEWALLOC (dest, 1)[0] = vl & GMP_NUMB_MASK; + size = vl != 0; + +#if GMP_NAIL_BITS != 0 + if (vl > GMP_NUMB_MAX) + { + MPZ_REALLOC (dest, 2); + PTR (dest)[1] = vl >> GMP_NUMB_BITS; + size = 2; + } +#endif + + SIZ (dest) = val >= 0 ? size : -size; +} |