/* 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 Library General Public License as published by
the Free Software Foundation; either version 2 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 Library General Public
License for more details.

You should have received a copy of the GNU Library 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;
}