mpir/mpn/generic/randomb.c

36 lines
1.0 KiB
C

/*
Copyright 2009 Jason Moxham
This file is part of the MPIR Library.
The MPIR 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 MPIR 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 MPIR Library; see the file COPYING.LIB. If not, write
to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "mpir.h"
#include "gmp-impl.h"
void mpn_randomb(mp_ptr rp, gmp_randstate_t rnd, mp_size_t n)
{
ASSERT(n > 0);
_gmp_rand(rp, rnd, n*GMP_NUMB_BITS);
while (rp[n - 1] == 0)
_gmp_rand(rp + n - 1, rnd, GMP_NUMB_BITS);
return;
}