random.hpp

#pragma once


#include <random>


inline thread_local std::random_device device;
inline thread_local std::mt19937 generator(device());

inline std::size_t pick_index(std::size_t const upto) {
    return std::uniform_int_distribution<std::size_t>{0, upto - 1}(generator);
}

inline float random_weight() {
    return std::uniform_real_distribution<float>{-1.0f, 1.0f}(generator);
}