Data Structures Using C, 2nd Edition by Pearson

Overview of C 7

1.4.4 Constants

A constant is a memory location which can store data in such a manner that its value during execu-

tion of a program does not change. Any attempt to change the value of a constant will result in an

error message. A constant in C can be of any of the basic data types, i.e., integer constant, float-

ing point constant, and character constant. const qualifier is used to declare a constant as shown

below:

const <type> <name> 5 <val>;

where

const: is a reserved word of C

<type>: is any of the basic data types

<name>: is the identier name

<val>: is the value to be assigned to the constant.

(1) Integer constant: It is ...