Page 20 - 6437

You can break a long line into multiple lines using string literals and separating them
using whitespaces.
Here are some examples of string literals. All the three forms are identical strings.

"hello, dear"

"hello, \

dear"

"hello, " "d" "ear"

Defining Constants
There are two simple ways in C to define constants:
 Using #define preprocessor
 Using const keyword

The #define Preprocessor
Given below is the form to use #define preprocessor to define a constant:

#define identifier value

The following example explains it in detail:

#include <stdio.h>

#define LENGTH 10

#define WIDTH 5
#define NEWLINE '\n'

int main()

{

int area;

area = LENGTH * WIDTH;

22