How to set the boolean value for a c++ class?

Question

I want to know how can I set the boolean value for a class. Ive seen this in other peoples code but I cant figure out how to do it myself.The format will be like this:

class myClass{
   //...
};
myClass getClass(){
  myClass myclass;
  //...
  return myclass;
}

int main(int argc, char **argv){
  myClass myclass;
  myclass = getClass();
  if(myclass){
    //do stuff
  }
  //...
  if(!myclass){
    //do other stuff
  }
  return 0;
}

Answer 1

You need to provide a conversion function to bool for your class, like this:

class myClass{
   public:
   explicit operator bool() const { /* ... */ }
};

It's better to make the conversion explicit to avoid accidental conversions. Using it in an if statement is fine, since that is considered an explicit context.