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Diffstat (limited to 'rts/gmp/mpz/urandomb.c')
-rw-r--r-- | rts/gmp/mpz/urandomb.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/rts/gmp/mpz/urandomb.c b/rts/gmp/mpz/urandomb.c new file mode 100644 index 0000000000..caca086e05 --- /dev/null +++ b/rts/gmp/mpz/urandomb.c @@ -0,0 +1,49 @@ +/* mpz_urandomb (rop, state, n) -- Generate a uniform pseudorandom + integer in the range 0 to 2^N - 1, inclusive, using STATE as the + random state previously initialized by a call to gmp_randinit(). + +Copyright (C) 1999, 2000 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_urandomb (mpz_t rop, gmp_randstate_t rstate, unsigned long int nbits) +#else +mpz_urandomb (rop, rstate, nbits) + mpz_t rop; + gmp_randstate_t rstate; + unsigned long int nbits; +#endif +{ + mp_ptr rp; + mp_size_t size; + + size = (nbits + BITS_PER_MP_LIMB - 1) / BITS_PER_MP_LIMB; + if (ALLOC (rop) < size) + _mpz_realloc (rop, size); + + rp = PTR (rop); + + _gmp_rand (rp, rstate, nbits); + MPN_NORMALIZE (rp, size); + SIZ (rop) = size; +} |