Re: Operator Overload between different types

"Mark Salsbery [MVP]" <MarkSalsbery[MVP]@newsgroup.nospam>
Tue, 4 Sep 2007 12:09:26 -0700
What didn't work? Something like this should be fine (of course, you should
implement it to do something meaningful):

class Cat
 Cat() {}

class Dog
 Dog() {}

 Dog operator+(const Cat &) {return *this;}
Dog dog;
Cat cat;
Dog dog2 = dog + cat;


Mark Salsbery
Microsoft MVP - Visual C++

"Marco Biagioni" <> wrote in message

I'm trying to implement the overload for two different kinds of objects. I
tryed for example:

Dog1 + Dog2;
Dog Dog::operator+(Dog& s)

 return this->nBau + s.nBau;
it works fine.
I need something...
Dog1 + Cat1;
??? Dog::operator+(Cat& s)

 return ???;
How can i implement my overload between different types and what type of
object must return?
I can only compile my program only specifing "return 0" in overload
function but it doesn't work.
Maybe i must implement overload function as static function outside class
Some help please.

My final need is doing something...

Dog1 = Dog1 + Cat1;
Dog1.operator = Dog1.operator+ Cat1;

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