1 /* 2 mersenne.h 3 4 Mersenne Twister PRNG 5 6 Copyright (C) 2013 Bill Currie <bill@taniwha.org> 7 8 Author: Bill Currie <bill@taniwha.org> 9 Date: 2013/01/21 10 11 This program is free software; you can redistribute it and/or 12 modify it under the terms of the GNU General Public License 13 as published by the Free Software Foundation; either version 2 14 of the License, or (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 19 20 See the GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to: 24 25 Free Software Foundation, Inc. 26 59 Temple Place - Suite 330 27 Boston, MA 02111-1307, USA 28 29 */ 30 31 #ifndef __QF_mersenne_h 32 #define __QF_mersenne_h 33 34 #include "QF/qtypes.h" 35 36 #define MT_STATE_SIZE 624 37 typedef struct { 38 uint32_t state[MT_STATE_SIZE]; 39 int index; 40 } mtstate_t; 41 42 43 void mtwist_seed (mtstate_t *state, uint32_t seed); 44 uint32_t mtwist_rand (mtstate_t *state); 45 46 #endif//__QF_mersenne_h 47