You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
26 lines
957 B
26 lines
957 B
#ifndef _RNG_H
|
|
#define _RNG_H
|
|
|
|
typedef struct rng_algo *RNG; //RNG algorithm reference
|
|
|
|
#define rng_reinterpret(rng, value, type) (*((type*)rng_next(rng, &value, sizeof(type))))
|
|
#define rng_reinterpret_new(rng, value, type) (*((type*)rng_next(rng, malloc(sizeof(type)), sizeof(type))))
|
|
#define rng_reinterpret_stackalloc(rng, value, type) rng_reinterpret(rng, alloca(sizeof(type)), type)
|
|
|
|
#define RNG_LEXBIND(rng, type, name) type name = rng_reinterpret(rng, name, type)
|
|
|
|
double rng_next_double(RNG algo);
|
|
int rng_next_int_bounded(RNG algo, int min, int max);
|
|
int rng_next_int(RNG algo, int max);
|
|
void* rng_next(RNG algo, void* data, int len);
|
|
int rng_chance(RNG algo, double d);
|
|
void rng_free(RNG algo);
|
|
void rng_seed(RNG algo, void* seed);
|
|
RNG rng_new(RNG (*instantiate)(void));
|
|
|
|
#define RNG_IMPL_DEFINITION(name) RNG __rng_impl_ ## name(void)
|
|
#define RNG_ALGO(name) &__rng_impl_ ## name
|
|
#define RNG_NEW(name) rng_new(RNG_ALGO(name))
|
|
|
|
#endif /* _RNG_H */
|