Passing arguments by value or by reference in objective C

Question

I\'m kind of new with objective c and I\'m trying to pass an argument by reference but is behaving like it were a value. Do you know why this doesn\'t work?

This is

Answer 1

Objective-C, like Java, only has pass-by-value. Like Java, objects are always accessed through pointers. "objects" are never values directly, hence you never assign or pass an object. You are passing an object pointer by value. But that does not seem to be the issue -- you are trying to modify the object pointed to by the pointer, which is perfectly allowed and has nothing to do with pass-by-value vs. pass-by-reference. I don't see any problem with your code.