A set of few functions for generating random values

random.h

// Created by Thibaut Mattio

#pragma once

#include <ctime>
#include <random>

namespace random {

inline auto random_float(float min = 0., float max = 1.) {
  srand(static_cast<unsigned>(time(nullptr)));
  std::random_device rd;
  std::mt19937 rng(rd());
  std::uniform_real_distribution<float> uni(min, max);
  return uni(rng);
}

inline auto random_int(int min, int max) {
  srand(static_cast<unsigned>(time(nullptr)));
  std::random_device rd;
  std::mt19937 rng(rd());
  std::uniform_int_distribution<int> uni(min, max);
  return uni(rng);
}

inline auto random_string(size_t size) {
  auto *alpha_num = "0123456789abcdefghijklmnopqrstuvwxyx";
  auto gen_rand_char = [alpha_num]() {
    return alpha_num[random_int(0, strlen(alpha_num) - 1)];
  };
  std::string random_str{};
  for (auto i = 0; i < size; ++i) {
    random_str += gen_rand_char();
  }
  return random_str;
}

inline auto random_bytes(size_t size) {
  srand(static_cast<unsigned>(time(nullptr)));
  std::random_device rd;
  auto *data = new unsigned char[size];
  for (auto i = 0; i < size; ++i) {
    *(data + i) = rd();
  }
  return data;
}

}  // namespace random