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#ifndef _RNG_H
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#define _RNG_H
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#include "shuffle3.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum rng_kind {
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RNG_KIND_FRNG,
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RNG_KIND_DRNG,
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RNG_KIND_XORNG,
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};
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typedef struct rng_init
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{
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enum rng_kind kind;
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union {
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struct {
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double state[2];
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} frng;
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struct {
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int32_t state;
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} drng;
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struct {
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uint64_t state[2];
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} xorng;
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} init;
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} rng_init_opt;
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typedef struct rng_impl* _UNIQUE rng_t;
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rng_t rng_new(rng_init_opt kind);
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#define RNG_INIT(_kind,...) ((rng_init_opt){.kind=(_kind), .init.__VA_ARGS__ })
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void rng_free(rng_t ptr);
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// Tests
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extern void rng_test();
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extern void rng_test_spec(rng_t rng);
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#ifdef __cplusplus
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}
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// RNG interfaces
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#include <rng/frng.hpp>
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#include <rng/drng.hpp>
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#include <rng/xoroshiro128plus.hpp>
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namespace rng {
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void test_algo(RNG&& rng);
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template<class R,
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typename std::enable_if<std::is_base_of<RNG, R>::value>::value __fuck>
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inline void test_algo(R&& rng) { test_algo(static_cast<RNG&&>(rng)); }
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}
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#endif
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#endif /* _RNG_H */
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