Esoteric C++ operators

Question

What is the purpose of the following esoteric C++ operators?

Pointer to member

::*

Bind pointer to member by pointer

Answer 1

Check out the C++ FAQ Lite's section on pointers to member functions. Search for the specific "operators" you're talking about (in most browsers, Ctrl-F opens a Find/Search dialog that allows you to search for text in the Web page), and it should help you to understand things better.