49 lines
1.8 KiB
C
49 lines
1.8 KiB
C
/* mpz_millerrabin(n,reps) -- An implementation of the probabilistic primality
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test found in Knuth's Seminumerical Algorithms book. If the function
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mpz_millerrabin() returns 0 then n is not prime. If it returns 1, then n is
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'probably' prime. The probability of a false positive is (1/4)**reps, where
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reps is the number of internal passes of the probabilistic algorithm. Knuth
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indicates that 25 passes are reasonable.
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THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
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CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
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FUTURE GNU MP RELEASES.
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Copyright 1991, 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2005 Free
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Software Foundation, Inc. Contributed by John Amanatides.
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Copyright 2011, Brian Gladman
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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 the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "mpir.h"
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#include "gmp-impl.h"
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// This function is obsolete 4/12/2011
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int
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mpz_millerrabin (mpz_srcptr n, int reps)
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{
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gmp_randstate_t rstate;
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int is_prime;
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gmp_randinit_default(rstate);
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is_prime = mpz_miller_rabin(n, reps, rstate);
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gmp_randclear(rstate);
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return is_prime;
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}
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