C++ (Cpp) check_random_device_valid Examples

Example #1

File: ctor.pass.cpp Project: Aj0Ay/libcxx

int main() {
  {
    std::random_device r;
  }
  {
    std::string token = "wrong file";
    check_random_device_invalid(token);
  }
  {
    std::string token = "/dev/urandom";
    if (is_valid_random_device(token))
      check_random_device_valid(token);
    else
      check_random_device_invalid(token);
  }
  {
    std::string token = "/dev/random";
    if (is_valid_random_device(token))
      check_random_device_valid(token);
    else
      check_random_device_invalid(token);
  }
#if !defined(_WIN32)
// Test that random_device(const string&) properly handles getting
// a file descriptor with the value '0'. Do this by closing the standard
// streams so that the descriptor '0' is available.
  {
    int ec;
    ec = close(STDIN_FILENO);
    assert(!ec);
    ec = close(STDOUT_FILENO);
    assert(!ec);
    ec = close(STDERR_FILENO);
    assert(!ec);
    std::random_device r;
  }
#endif // !defined(_WIN32)
}

Example #2

File: ctor.pass.cpp Project: 32bitmicro/riscv-libcxx

int main() {
  { std::random_device r; }

  {
    int ec;
    ec = close(STDIN_FILENO);
    assert(!ec);
    ec = close(STDOUT_FILENO);
    assert(!ec);
    ec = close(STDERR_FILENO);
    assert(!ec);
    std::random_device r;
  }

  {
    std::string token = "wrong file";
    if (is_valid_random_device(token))
      check_random_device_valid(token);
    else
      check_random_device_invalid(token);
  }

  {
    std::string token = "/dev/urandom";
    if (is_valid_random_device(token))
      check_random_device_valid(token);
    else
      check_random_device_invalid(token);
  }

  {
    std::string token = "/dev/random";
    if (is_valid_random_device(token))
      check_random_device_valid(token);
    else
      check_random_device_invalid(token);
  }
}