pointers tofunction... whats the point

on the subject of function pointers - http://www.function-pointer.org

Function Pointers R U L E. Suppose your writing a class that performs some random task and needs to log errors. However, you want to make the error logging procedure customizable. You don''t want it to always simply printf(), or write it to the same file everytime, you want the programmer using the class to be able to choose how to log the errors.

Time for a function pointer!