I guess there is no operator overloading in objective C. Exact function overloading as in C++ is not present.
In what way polymorphism is implemented in objective C?
+1
A:
Messages are handled dynamically, which gives an equivalent to C++ virtual methods.
If the parent class has a message -doSomething and a child class re-implements -doSomething, regardless of the type of reference you have to the child object, calling [instance doSomething] will invoke the child's method.
I'm not sure what operator overloading has to do with polymorphism, but yes, operator overloading does not exist in Objective C.
codelark
2010-10-01 06:53:29
Operator overloading is orthogonal to polymorphism. I'd also add that if you call `doSomething`, the receiver doesn't even have to be a subclass. It'll just work as long as the instance responds tot he method.
bbum
2010-10-01 08:30:54
what do u mean by "orthogonal to"?
Krishnan
2010-10-01 09:08:10
@codelark: I think that operator overloading is a from of polymorphism.
Krishnan
2010-10-01 09:08:55