crand: started integer rng overrides

Fortune for cpprng's current commit: Half blessing − 半吉

include/rng.h

@@ -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)

include/rng/crand.h

@@ -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:

src/rng/crand.cpp

@@ -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()