ref: 2f6d0a48c2c77af6979142337a97f9fefa133c42
dir: /3rd/mt19937-64.h/
typedef struct mt19937_64 mt19937_64; struct mt19937_64 { unsigned long long mt[312]; int mti; }; void init_genrand64(mt19937_64 *context, unsigned long long seed); void init_by_array64(mt19937_64 *context, unsigned long long init_key[], unsigned long long key_length); unsigned long long genrand64_int64(mt19937_64 *context); long long genrand64_int63(mt19937_64 *context); double genrand64_real1(mt19937_64 *context); double genrand64_real2(mt19937_64 *context); double genrand64_real3(mt19937_64 *context);