fork download
copy 
  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. class Cls {
  6. public:
  7.     Cls(bool value, const char *msg) :
  8.         m_value(value),
  9.         m_name(msg)
  10.     {
  11.         cout << "Cls::Cls(" << m_name << ")" << endl;
  12.     }
  13.  
  14.     Cls& operator &&(const Cls &other) {
  15.         cout << "Cls(" << m_name << ")::operator &&(" << other.m_name << ")" << endl;
  16.         return *this;
  17.     }
  18.  
  19.     operator bool() const {
  20.         cout << "Cls(" << m_name << ")::operator bool()" << endl;
  21.         return m_value;
  22.     }
  23.  
  24. private:
  25.     bool m_value;
  26.     string m_name;
  27. };
  28.  
  29. class T : public Cls {
  30. public:
  31.     T(const char *msg) : Cls(true, msg) {}
  32. };
  33.  
  34. class F : public Cls {
  35. public:
  36.     F(const char *msg) : Cls(false, msg) {}
  37. };
  38.  
  39. int main() {
  40.     cout << "Mission:" << endl;
  41.     if (F("a") && T("b") && T("c")) {
  42.         cout << "... completed" << endl;
  43.     } else {
  44.         cout << "... failed" << endl;
  45.     }
  46.  
  47.     return 0;
  48. }
  49.  
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Mission:
Cls::Cls(c)
Cls::Cls(b)
Cls::Cls(a)
Cls(a)::operator &&(b)
Cls(a)::operator &&(c)
Cls(a)::operator bool()
... failed
https://ideone.com/Kbz4cu
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!