binary to texted binary

++
void BinaryToTextedBinary(int num) {
  string binary = "";
  while (num != 0) {
    binary = to_string(num % 2) + binary;
    num /= 2;
  }
  for (int i = 0; i < binary.size(); i++) {
    if (binary[i] == '0') {
      cout << '.';
    } else {
      cout << '-';
    }
  }
  cout << endl;
}