mt19937ar.h

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//
// 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
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// 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 );