randmt.h revision 1.1.1.2
1/* Mersenne Twister pseudo-random number generator defines. 2 3Copyright 2002, 2003 Free Software Foundation, Inc. 4 5This file is part of the GNU MP Library. 6 7The GNU MP Library is free software; you can redistribute it and/or modify 8it 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 14or 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 20or both in parallel, as here. 21 22The GNU MP Library is distributed in the hope that it will be useful, but 23WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 24or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 25for more details. 26 27You should have received copies of the GNU General Public License and the 28GNU Lesser General Public License along with the GNU MP Library. If not, 29see 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. */ 41typedef 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 48void __gmp_mt_recalc_buffer (gmp_uint_least32_t *); 49void __gmp_randget_mt (gmp_randstate_t, mp_ptr, unsigned long int); 50void __gmp_randclear_mt (gmp_randstate_t); 51void __gmp_randiset_mt (gmp_randstate_ptr, gmp_randstate_srcptr); 52