C Programming For Dummies, 2nd Edition

Chapter 19

Deep into Pointer Land

IN THIS CHAPTER

Using a pointer to display an array

Replacing array notation with pointers

Working with strings and pointers

Understanding arrays of pointers

Performing a string sort

Creating a function that eats pointers

It’s easy to accept what a pointer does, to numbly nod your head, to repeat the mantra, “A pointer is a variable that contains a memory location.” You can even memorize the difference between pointer variable p and pointer variable *p. But to truly know the power of the pointer, you have to discover how it's fully exploited in the C language. You must eschew the old way of doing things and fully embrace pointers for the miraculous witchcraft they do.

Pointers and Arrays

Arrays in the C language are nothing but a kettle full of lies! Truly, they don’t exist. As you discover the power of the pointer, you come to accept that an array ...