bbool型におけるビット演算の挙動を調べるプログラム

bitwise_operetor_about_bool_variable.cpp

#include <iostream>

using namespace std;

int main(int argc, char const* argv[]){
  bool ands[4] = {true & true, true & false, false & true, false & false};
  bool ors[4] =  {true | true, true | false, false | true, false | false};

  cout << "ands: ";
  for (int i = 0; i < 4; i++) cout << std::boolalpha << ands[i] << " ";
  cout << endl;
  cout << "ors:  ";
  for (int i = 0; i < 4; i++) cout << std::boolalpha << ors[i] << " ";
  cout << endl;

  bool and_substitute = true; and_substitute &= false;
  bool or_substitute  = true; or_substitute  |= false;

  cout << "and_substitute: " << std::boolalpha << and_substitute << endl;
  cout << "or_substitute:  " << std::boolalpha << or_substitute  << endl;

  return 0;
}

出力結果

    % g++ bitwise_operetor_about_bool_variable.cpp && ./a.out
    ands: true false false false
    ors:  true true true false
    and_substitute: false
    or_substitute:  true