prng.hpp

Go to the documentation of this file.

#pragma once
 
namespace sys {
struct state;
}
 
namespace rng {
 
struct random_pair {
    uint64_t high;
    uint64_t low;
};
 
uint64_t get_random(sys::state const& state, uint32_t value_in);             // try to populate as many bits of value_in as you can
random_pair get_random_pair(sys::state const& state, uint32_t value_in);    // each call natively generates 128 random bits anyways
uint64_t get_random(sys::state const& state, uint32_t value_in_hi, uint32_t value_in_lo);
random_pair get_random_pair(sys::state const& state, uint32_t value_in_hi, uint32_t value_in_lo);
uint32_t reduce(uint32_t value_in, uint32_t upper_bound);
 
} // namespace rng