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take_cheeze
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*
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** mt19937ar.h - MT Random functions
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**
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** See Copyright Notice in mruby.h
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*/
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#define N 624
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typedef struct {
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unsigned long mt[N];
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int mti;
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union {
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unsigned long int_;
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double double_;
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} gen;
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mrb_int seed;
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mrb_bool has_seed : 1;
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} mt_state;
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void mrb_random_init_genrand(mt_state *, unsigned long);
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unsigned long mrb_random_genrand_int32(mt_state *);
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double mrb_random_genrand_real1(mt_state *t);
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/* initializes mt[N] with a seed */
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void init_genrand(unsigned long s);
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/* initialize by an array with array-length */
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/* init_key is the array for initializing keys */
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/* key_length is its length */
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/* slight change for C++, 2004/2/26 */
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void init_by_array(unsigned long init_key[], int key_length);
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/* generates a random number on [0,0xffffffff]-interval */
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unsigned long genrand_int32(void);
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/* generates a random number on [0,0x7fffffff]-interval */
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long genrand_int31(void);
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/* These real versions are due to Isaku Wada, 2002/01/09 added */
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/* generates a random number on [0,1]-real-interval */
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double genrand_real1(void);
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/* generates a random number on [0,1)-real-interval */
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double genrand_real2(void);
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/* generates a random number on (0,1)-real-interval */
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double genrand_real3(void);
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/* generates a random number on [0,1) with 53-bit resolution*/
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double genrand_res53(void);
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