12 struct frand_state rand;
15 void zipf_init(struct zipf_state *zs, unsigned long nranges, double theta);
16 unsigned long long zipf_next(struct zipf_state *zs);
18 void pareto_init(struct zipf_state *zs, unsigned long nranges, double h);
19 unsigned long long pareto_next(struct zipf_state *zs);