crand: started integer rng overrides

Fortune for cpprng's current commit: Half blessing − 半吉
lib
Avril 3 years ago
parent c8622410d8
commit 977e32c711
Signed by: flanchan
GPG Key ID: 284488987C31F630

@ -78,7 +78,7 @@ struct Random
virtual bool next_bool();
#define NDEF(t, M) inline t next_ ## t() { return next_ ## t(M); }
#define NDEF(t, M) inline virtual t next_ ## t() { return next_ ## t(M); }
#define NDEFF(n) NDEF(i ## n, INT ## n ## _MAX) NDEF(u ## n, UINT ## n ## _MAX)
NDEFF(8)
NDEFF(16)

@ -13,6 +13,9 @@ namespace rng
crand(u64 seed);
inline ~crand(){}
inline i64 next_i64() override { return _sample_raw(); }
u64 next_u64() override;
protected:
f64 _sample() override;
private:

@ -21,6 +21,10 @@ namespace rng
//TODO: properly implemet this f64 crand::_sample() { return (f64)std::bit_cast<u64>(_sample_raw()) / (f64)UINT64_MAX; }
// Overrides //
u64 crand::next_u64() { return std::bit_cast<u64>(_sample_raw()); }
//TODO: Implementing next_i64(i64 max) should be trivial. the man page for drand48 shows its output range, just map that range to `0..=max`
//TODO: make the default range for all non-bounded `next_i/u*` the same range as drand48's. If that's too big for the integer type, scale it down.
}
void rng_test()

Loading…
Cancel
Save