| /* | |
| A C-program for MT19937, with initialization improved 2002/1/26. | |
| Coded by Takuji Nishimura and Makoto Matsumoto. | |
| Before using, initialize the state by using init_genrand(seed) | |
| or init_by_array(init_key, key_length). | |
| Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura, | |
| All rights reserved. | |
| Copyright (C) 2005, Mutsuo Saito | |
| All rights reserved. | |
| Redistribution and use in source and binary forms, with or without | |
| modification, are permitted provided that the following conditions | |
| are met: | |
| 1. Redistributions of source code must retain the above copyright | |
| notice, this list of conditions and the following disclaimer. | |
| 2. Redistributions in binary form must reproduce the above copyright | |
| notice, this list of conditions and the following disclaimer in the | |
| documentation and/or other materials provided with the distribution. | |
| 3. The names of its contributors may not be used to endorse or promote | |
| products derived from this software without specific prior written | |
| permission. | |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| Any feedback is very welcome. | |
| http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html | |
| email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space) | |
| */ | |
| /* initializes mt[N] with a seed */ | |
| void init_genrand(unsigned long s); | |
| /* initialize by an array with array-length */ | |
| /* init_key is the array for initializing keys */ | |
| /* key_length is its length */ | |
| /* slight change for C++, 2004/2/26 */ | |
| void init_by_array(unsigned long init_key[], int key_length); | |
| /* generates a random number on [0,0xffffffff]-interval */ | |
| unsigned long genrand_int32(void); | |
| /* generates a random number on [0,0x7fffffff]-interval */ | |
| long genrand_int31(void); | |
| /* These real versions are due to Isaku Wada, 2002/01/09 added */ | |
| /* generates a random number on [0,1]-real-interval */ | |
| double genrand_real1(void); | |
| /* generates a random number on [0,1)-real-interval */ | |
| double genrand_real2(void); | |
| /* generates a random number on (0,1)-real-interval */ | |
| double genrand_real3(void); | |
| /* generates a random number on [0,1) with 53-bit resolution*/ | |
| double genrand_res53(void); | |