文档介绍：The Function Pointer Tutorials
Introduction to C and C++ Function Pointers, Callbacks and Functors
written by Lars Haendel
January 2003, Dortmund, Germany
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Contents
1 Introduction to Function Pointers 2
What is a Function Pointer ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introductory Example or How to Replace a Switch-Statement . . . . . . . . . . . . . . . . . . . . 2
2 The Syntax of C and C++ Function Pointers 3
Define a Function Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Calling Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Assign an Address to a Function Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Function Pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Calling a Function using a Function Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
How to Pass a Function Pointer as an Argument ? . . . . . . . . . . . . .