Wrox Press C++ Tutorial

Chapter 5 - More About Program Structure

In the previous chapter, you learned about the basics of defining functions and the various ways in which data can be passed to a function. You also saw how results are returned to a calling program.

In this chapter, we will cover the further aspects of how functions can be put to good use, including:

• What a pointer to a function is
  
  
• How to define and use pointers to functions
  
  
• How to write a function to manage dynamic memory allocation errors
  
  
• How to define and use arrays of pointers to functions
  
  
• How to write multiple functions with a single name to handle different kinds of data automatically
  
  
• What function templates are and how you define and use them
  
  
• How multi-file programs are structured and how to refer to a variable defined in another file
  
  
• How to declare and use your own namespaces