November 2008
Intermediate to advanced
324 pages
7h 35m
English
Content preview from Data Structures Using C
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5
POINTERS
5.1 INTRODUCTION
The use of pointers is one of the most powerful features in C. Pointers are simply variables that point to another variable. Relation between these two variables is established by the fact that the value of the pointer variable is the address of the variable it points to. In this chapter we discuss the basics, understanding the use of pointers.
5.2 FUNDAMENTALS AND DEFINING POINTERS
A pointer is a variable that holds the address of some other variable. Depending on the data type of the variable, amount of bytes in memory is reserved. In the IBM range of machines a character variable requires 1 byte of memory, an integer variable requires 2 bytes, and a floating point-variable requires 4 bytes. Consider the following ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.