References and Object Slicing

Question

I don\'t have my Effective C++ with me and this is bugging me so much that I have to ask for my own sanity. Given

class Foo : public Bar{}

void MyFunc(Bar          


        

Answer 1

Not a problem, because you're passing in a reference. You're not creating a new object, just letting MyFunc access the original object.

Answer 2

Slicing is only a problem when you cast an object to its parent class. There is no slicing when you cast pointers or references.

Answer 3

Since you are passing the reference - no, unless you later assign to an instance of Bar.