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  1. #include <iostream>
  2. using std::cout;
  3. using std::endl;
  4.  
  5. class my_bool {
  6.   private:
  7.     bool value;
  8.   public:
  9.     my_bool(bool value) : value(value) {}
  10.     explicit operator bool() { return value; };
  11.  
  12.     friend my_bool operator==(const my_bool & instance_1, const my_bool & instance_2) {
  13.     	return instance_1.value == instance_2.value;
  14.     }
  15.     friend my_bool operator&&(const my_bool & instance_1, const my_bool & instance_2) {
  16.     	cout << "FOOOOOOOOO bar" << endl;
  17.     	return instance_1.value && instance_2.value;
  18.     }
  19.     friend my_bool operator&&(const my_bool & lhs, bool rhs) {
  20.     	return lhs && my_bool(rhs);
  21.     }
  22.     friend my_bool operator&&(bool lhs, const my_bool & rhs) {
  23.     	return my_bool(lhs) && rhs;
  24.     }
  25.  
  26. };
  27.  
  28. int main(int, char **){
  29.   my_bool a = true;
  30.   bool b = false;
  31.  
  32.   if(a == b){
  33.     // do something
  34.   }
  35.  
  36.   if(b && a){
  37.     // do something 
  38.   }
  39.   return 0;
  40. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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FOOOOOOOOO bar
https://ideone.com/wEzUT6
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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