C++ overloaded function issue

Question

Why does the compiler not find the base class function signature? Changing foo( a1 ) to B::foo( a1 ) works.

Code:

class A1 ;
cl         


        

Answer 1

The name C::foo shadows the name B::foo. Once the compiler finds the matching foo in class C, it stops searching any further.

You can resolve your problem by adding:

using B::foo;

to the body of class C, or by renaming the function in class B.