Data Structures Using C, 2nd Edition by Pearson

5.1 INTRODUCTION

Pointers are the most powerful feature of ‘C’. The beginners of ‘C’ find pointers hard to understand and

manipulate. In an attempt to unveil the mystery behind this aspect, the basics of pointers which generally

remain in background are being discussed in the following sections.

5.1.1 The ’&’ Operator

When a variable x is declared in a program, a storage location in

the main memory is made available by the compiler. For exam-

ple, Figure 5.1 shows the declaration of x as an integer variable

and its storage location in the main memory.

From Figure 5.1, it may be observed that x is the name

associated by the compiler to a