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4c74403188
Change-Id: Iae65e95cfa0d92091b8b0a424ae36d88efa76aa9 Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3020 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/* mpn_random -- Generate random numbers.
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Copyright 2001, 2002 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/. */
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#include "gmp-impl.h"
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void
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mpn_random (mp_ptr ptr, mp_size_t size)
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{
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gmp_randstate_ptr rands;
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/* FIXME: Is size==0 supposed to be allowed? */
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ASSERT (size >= 0);
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if (size == 0)
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return;
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rands = RANDS;
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_gmp_rand (ptr, rands, size * GMP_NUMB_BITS);
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/* Make sure the most significant limb is non-zero. */
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while (ptr[size-1] == 0)
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_gmp_rand (&ptr[size-1], rands, GMP_NUMB_BITS);
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}
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