43 lines
978 B
C
43 lines
978 B
C
/*
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* This software is licensed under the terms of the MIT-License
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* See COPYING for further information.
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* ---
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* Copyright (C) 2011, Lukas Weber <laochailan@web.de>
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* Copyright (C) 2012, Alexeyew Andrew <http://akari.thebadasschoobs.org/>
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*/
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#ifndef TSRAND_H
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#define TSRAND_H
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#include <stdint.h>
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typedef struct RandomState {
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uint32_t w;
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uint32_t z;
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} RandomState;
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int tsrand_test(void);
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void tsrand_switch(RandomState *rnd);
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void tsrand_seed_p(RandomState *rnd, uint32_t seed);
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int tsrand_p(RandomState *rnd);
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inline void tsrand_seed(uint32_t seed);
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inline int tsrand(void);
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inline double frand();
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#define TSRAND_MAX INT32_MAX
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#define srand USE_tsrand_seed_INSTEAD_OF_srand
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#define rand USE_tsrand_INSTEAD_OF_rand
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/*
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* These have to be distinct 16-bit constants k, for which both k*2^16-1 and k*2^15-1 are prime numbers
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*/
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#define TSRAND_W_COEFF 30963
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#define TSRAND_W_SEED_COEFF 19164
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#define TSRAND_Z_COEFF 29379
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#define TSRAND_Z_SEED_COEFF 31083
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#endif
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