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      1 /* Mersenne Twister pseudo-random number generator defines.
      2 
      3 Copyright 2002, 2003 Free Software Foundation, Inc.
      4 
      5 This file is part of the GNU MP Library.
      6 
      7 The GNU MP Library is free software; you can redistribute it and/or modify
      8 it under the terms of either:
      9 
     10   * the GNU Lesser General Public License as published by the Free
     11     Software Foundation; either version 3 of the License, or (at your
     12     option) any later version.
     13 
     14 or
     15 
     16   * the GNU General Public License as published by the Free Software
     17     Foundation; either version 2 of the License, or (at your option) any
     18     later version.
     19 
     20 or both in parallel, as here.
     21 
     22 The GNU MP Library is distributed in the hope that it will be useful, but
     23 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     24 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     25 for more details.
     26 
     27 You should have received copies of the GNU General Public License and the
     28 GNU Lesser General Public License along with the GNU MP Library.  If not,
     29 see https://www.gnu.org/licenses/.  */
     30 
     31 
     32 /* Number of extractions used to warm the buffer up.  */
     33 #define WARM_UP 2000
     34 
     35 /* Period parameters.  */
     36 #define N 624
     37 #define M 397
     38 #define MATRIX_A 0x9908B0DF   /* Constant vector a.  */
     39 
     40 /* State structure for MT.  */
     41 typedef struct
     42 {
     43   gmp_uint_least32_t mt[N];    /* State array.  */
     44   int mti;                     /* Index of current value.  */
     45 } gmp_rand_mt_struct;
     46 
     47 
     48 void __gmp_mt_recalc_buffer (gmp_uint_least32_t *);
     49 void __gmp_randget_mt (gmp_randstate_t, mp_ptr, unsigned long int);
     50 void __gmp_randclear_mt (gmp_randstate_t);
     51 void __gmp_randiset_mt (gmp_randstate_ptr, gmp_randstate_srcptr);
     52