mt.cc

#include <array>
#include <cassert>
#include <random>

#include <unistd.h>

int main(int ac, char* av[]) {
  std::mt19937_64 e;
  if (ac == 2) {
    e.seed(std::stoi(av[1]));
  }

  while (true) {
    std::array<std::uint_fast64_t, (2 << 16 >> 3)> output;
    for (auto& i : output) {
      i = e();
    }

    auto size = sizeof(output[0]) * output.size();
    assert(write(1, output.data(), size) == size);
  }
}