1 #ifndef FIO_GAUSS_H
2 #define FIO_GAUSS_H
3 
4 #include <inttypes.h>
5 #include "rand.h"
6 
7 struct gauss_state {
8 	struct frand_state r;
9 	uint64_t nranges;
10 	unsigned int stddev;
11 	bool disable_hash;
12 };
13 
14 void gauss_init(struct gauss_state *gs, unsigned long nranges, double dev,
15 		unsigned int seed);
16 unsigned long long gauss_next(struct gauss_state *gs);
17 void gauss_disable_hash(struct gauss_state *gs);
18 
19 #endif
20