ASSIGNMENT OPERATOR

Introduction

The assignment operator is used for assigning the value of an expression to a variable. The general format for an assignment operator is var = expression.

You can use other formats such as var += expression, which means var = var + expression.

Program

#include  main( ) {   int a,b,c,d;   printf("ENTER VALUES OF a,b, c, d");   scanf("%d%d%d",&a,&b,&c);    a += b*c+d;   printf("\n a = %d",a);   }  Input a = 5, b= 5, c = 7, d = 8. Output ENTER VALUES OF a,b, c, d 5 5 7 8 a =  48 

Explanation

The assignment operators have the lowest priority and they are evaluated from right to left. The assignment operators are as follows:

=, +=, -=, *=, /=, %=. 

Suppose the expression is

a = 5; a += 5*7+8; 

You will get the value 48. It is evaluated by the following steps:

1. 5*7 = 35.

2. 35+8 = 43.

3. a += 43 means a = a + 43 which gives the value 48.

You can assign a value to multiple variables in one statement as:
i = j = k = 10 which gives value 10 to i, j, k.