gcc/gmp/randmt.h

/* Mersenne Twister pseudo-random number generator defines.

Copyright 2002, 2003 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 3 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.  If not, see http://www.gnu.org/licenses/.  */


/* Number of extractions used to warm the buffer up.  */
#define WARM_UP 2000

/* Period parameters.  */
#define N 624
#define M 397
#define MATRIX_A 0x9908B0DF   /* Constant vector a.  */

/* State structure for MT.  */
typedef struct
{
  gmp_uint_least32_t mt[N];    /* State array.  */
  int mti;                     /* Index of current value.  */
} gmp_rand_mt_struct;


void __gmp_mt_recalc_buffer __GMP_PROTO ((gmp_uint_least32_t *));
void __gmp_randget_mt __GMP_PROTO ((gmp_randstate_t, mp_ptr, unsigned long int));
void __gmp_randclear_mt __GMP_PROTO ((gmp_randstate_t rstate));
void __gmp_randiset_mt __GMP_PROTO ((gmp_randstate_ptr, gmp_randstate_srcptr));