(C++) operator!February 24, 2017 · View on GitHub (C++) operator! operator! (pronounces as 'bitwise not operator') is an operator to perform bitwise not. The example below shows how to reconstruct its truth table: #include <iostream> int main() { const bool f = false; const bool t = true; std::cout << (!f) << '\n' //1 << (!t) << '\n'; //0 }