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mbed I/F binding for mruby

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mrbgems/mruby-random/mt19937ar.h@1:8ccd1d494a4b, 2015-04-13 (annotated)

Committer:
mzta
Date:
Mon Apr 13 05:20:15 2015 +0000
Revision:
1:8ccd1d494a4b
Parent:
0:158c61bb030f 
- code refactoring.; - add SPI, SPISlave, I2C class to mruby-mbed (Incomplete).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mzta 0:158c61bb030f 1 /*
mzta 0:158c61bb030f 2 ** mt19937ar.h - MT Random functions
mzta 0:158c61bb030f 3 **
mzta 0:158c61bb030f 4 ** See Copyright Notice in mruby.h
mzta 0:158c61bb030f 5 */
mzta 0:158c61bb030f 6
mzta 0:158c61bb030f 7 #define N 624
mzta 0:158c61bb030f 8
mzta 0:158c61bb030f 9 typedef struct {
mzta 0:158c61bb030f 10 unsigned long mt[N];
mzta 0:158c61bb030f 11 int mti;
mzta 0:158c61bb030f 12 union {
mzta 0:158c61bb030f 13 unsigned long int_;
mzta 0:158c61bb030f 14 double double_;
mzta 0:158c61bb030f 15 } gen;
mzta 0:158c61bb030f 16
mzta 0:158c61bb030f 17 mrb_int seed;
mzta 0:158c61bb030f 18 mrb_bool has_seed : 1;
mzta 0:158c61bb030f 19 } mt_state;
mzta 0:158c61bb030f 20
mzta 0:158c61bb030f 21 void mrb_random_init_genrand(mt_state *, unsigned long);
mzta 0:158c61bb030f 22 unsigned long mrb_random_genrand_int32(mt_state *);
mzta 0:158c61bb030f 23 double mrb_random_genrand_real1(mt_state *t);
mzta 0:158c61bb030f 24
mzta 0:158c61bb030f 25 /* initializes mt[N] with a seed */
mzta 0:158c61bb030f 26 void init_genrand(unsigned long s);
mzta 0:158c61bb030f 27
mzta 0:158c61bb030f 28 /* initialize by an array with array-length */
mzta 0:158c61bb030f 29 /* init_key is the array for initializing keys */
mzta 0:158c61bb030f 30 /* key_length is its length */
mzta 0:158c61bb030f 31 /* slight change for C++, 2004/2/26 */
mzta 0:158c61bb030f 32 void init_by_array(unsigned long init_key[], int key_length);
mzta 0:158c61bb030f 33
mzta 0:158c61bb030f 34 /* generates a random number on [0,0xffffffff]-interval */
mzta 0:158c61bb030f 35 unsigned long genrand_int32(void);
mzta 0:158c61bb030f 36
mzta 0:158c61bb030f 37 /* generates a random number on [0,0x7fffffff]-interval */
mzta 0:158c61bb030f 38 long genrand_int31(void);
mzta 0:158c61bb030f 39
mzta 0:158c61bb030f 40 /* These real versions are due to Isaku Wada, 2002/01/09 added */
mzta 0:158c61bb030f 41 /* generates a random number on [0,1]-real-interval */
mzta 0:158c61bb030f 42 double genrand_real1(void);
mzta 0:158c61bb030f 43
mzta 0:158c61bb030f 44 /* generates a random number on [0,1)-real-interval */
mzta 0:158c61bb030f 45 double genrand_real2(void);
mzta 0:158c61bb030f 46
mzta 0:158c61bb030f 47 /* generates a random number on (0,1)-real-interval */
mzta 0:158c61bb030f 48 double genrand_real3(void);
mzta 0:158c61bb030f 49
mzta 0:158c61bb030f 50 /* generates a random number on [0,1) with 53-bit resolution*/
mzta 0:158c61bb030f 51 double genrand_res53(void);
mzta 0:158c61bb030f 52