#include <fstream>

unsigned long long random_get_seed()
{
  // Open the random device
  std::ifstream rand_dev("/dev/urandom");

  // Read some random bytes to get the seed
  unsigned long long seed;
  rand_dev.read((char*)&seed, sizeof(seed));

  // Close the random device
  rand_dev.close();

  // Return the seed
  return seed;
}