Lazy, overloaded C++ && operator?

Question

I\'m trying to implement my own boolean class, but cannot replicate native semantics for &&. The following contrived code demonstrates the issue:

Answer 1

You should not overload bool operator&&, since you lose short circuit evaluation, as you have discovered.

The correct approach would be to give your class a bool conversion operator

class MyBool {
 public:
  bool theValue;
  MyBool() {}
  MyBool(bool aBool) : theValue(aBool) {}
  explicit operator bool() { return theValue; }
};

Note that explicit conversion operators require C++11 compliance. If you do not have this, have a look at the safe bool idiom.