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#ifndef THEFT_MT_H
#define THEFT_MT_H
#include <stdint.h>
/* Wrapper for Mersenne Twister.
* See copyright and license in theft_mt.c, more details at:
* http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
*
* The code has been modified to store internal state in heap/stack
* allocated memory, rather than statically allocated memory, to allow
* multiple instances running in the same address space. */
#define THEFT_MT_PARAM_N 312
struct theft_mt {
uint64_t mt[THEFT_MT_PARAM_N]; /* the array for the state vector */
int16_t mti;
};
/* Heap-allocate a mersenne twister struct. */
struct theft_mt *theft_mt_init(uint64_t seed);
/* Free a heap-allocated mersenne twister struct. */
void theft_mt_free(struct theft_mt *mt);
/* Reset a mersenne twister struct, possibly stack-allocated. */
void theft_mt_reset(struct theft_mt *mt, uint64_t seed);
/* Get a 64-bit random number. */
uint64_t theft_mt_random(struct theft_mt *mt);
/* Generate a random number on [0,1]-real-interval. */
double theft_mt_random_double(struct theft_mt *mt);
#endif
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