From 04452763110f0245617c876ecbb271dffb01d05d Mon Sep 17 00:00:00 2001 From: flaviojs Date: Sat, 25 Jun 2011 22:09:35 +0000 Subject: * Added Mersenne Twister MT19937 as a random number generator. git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@14865 54d463be-8e91-2dee-dedb-b68131a5f0ec --- 3rdparty/mt19937ar/mt19937ar.h | 72 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 3rdparty/mt19937ar/mt19937ar.h (limited to '3rdparty/mt19937ar/mt19937ar.h') diff --git a/3rdparty/mt19937ar/mt19937ar.h b/3rdparty/mt19937ar/mt19937ar.h new file mode 100644 index 000000000..8b98b8a5b --- /dev/null +++ b/3rdparty/mt19937ar/mt19937ar.h @@ -0,0 +1,72 @@ +/* + 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); -- cgit v1.2.3-60-g2f50