default_generated_methods.cpp

class X {
  X(Sometype);              // "ordinary constructor"
  X();                      // default constructor
  X(const X&);              // copy constructor
  X(X&&);                   // move constructor
  X& operator=(const X&);   // copy assignment: clean up target and copy
  X& operator=(X&&);        // move assignment: clean up target and move
   ~X();                    // destructor: clean up
  // ...
};