random_algorithm.h

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#pragma once
 
#include "mtrandom.h"
#include <functional>
 
namespace hgps {
class Random {
  public:
    void seed(unsigned int seed) noexcept;
 
    int next_int();
 
    int next_int(int max_value);
 
    int next_int(int min_value, int max_value);
 
    double next_double() noexcept;
 
    double next_normal();
 
    double next_normal(double mean, double standard_deviation);
 
    int next_empirical_discrete(const std::vector<int> &values, const std::vector<float> &cdf);
 
    int next_empirical_discrete(const std::vector<int> &values, const std::vector<double> &cdf);
 
  private:
    MTRandom32 engine_;
 
    int next_int_internal(int min_value, int max_value);
    double next_uniform_internal(double min_value, double max_value);
    double next_normal_internal(double mean, double standard_deviation);
};
} // namespace hgps