### Learn C Programming Language

Introduction to C
Variables and Data Types
Operators
Conditional Statements
Loops
Arrays
Strings
Pointers and Memory Management
Functions

# C Assignment Operators

In this lesson, you will learn about Assignment Operators in C, and their usage, along with examples to better understand the topic.

## What are assignment Operators?

The assignment operator is the sign equal to =. However, it indicates that the left operand takes and allocates the value of the expression on the right operand. That is called value assigned. For Example,  x = 14 is to assign the variable x the value 14.

The table below illustrates the Assignment Operators in C

Assignment Operators SymbolExplanationExample
=a = b + c will allocate the value of b + c into
a
a = b + c
+=a += b is same to a = b + aa+=b
-=a -= b is same to a = a - b a-=b
*=a *= b is same to a = a * ba*=b
/=a /= b is same to a = a / ba/=b
%=a %= b is same to a = a % ba%=b
.=a .= b is same to a = a . ba.=b
&=a &= b is same to a = a & ba&=b
|=a |= b is same to a = a | ba|=b
^=a ^= b is same to a = a ^ ba^=b
<<=a <<= b is same to a = a << ba <<= b
>>=a >>= b is same to a = a >> ba >>= b

### Example of Assignment Operators in C

#include <stdio.h>

int a, b, c;
int main() {
printf("C Assignment Operator Example");
printf("\n");
//Add and += operator adds right operand to the left operand and allocate the result to left operand
a = 84;
c = 0;
printf("a = %d \nc = %d\n", a, c);
c += a;
printf("Expression -> c += a\n");
printf("value of a added to c and allocated to c\n");
printf("Result -> %d\n", c);
//Subtract and -= operator subtract right operand to the left operand and allocate the result to left operand
a = 3;
c = 83;
printf("a = %d \nc = %d\n", a, c);
c -= a;
printf("Subtract and operation-> -=\n");
printf("Expression -> c -= a\n");
printf("value of a subtracted to c and allocated to c\n");
printf("Result -> %d\n", c);
//Multiply and -= operator multiply right operand to the left operand and allocate the result to left operand
a = 11;
c = 3;
printf("a = %d \nc = %d\n", a, c);
c *= a;
printf("Multiply and operation-> -=\n");
printf("Expression -> c *= a\n");
printf("value of a multiplied to c and allocated to c\n");
printf("Result -> %d\n", c);
//Division and /= operator divide right operand to the left operand and allocate the result to left operand
a = 5;
c = 10;
printf("a = %d \nc = %d\n", a, c);
c /= a;
printf("Division and operation-> /=\n");
printf("Expression -> c /= a\n");
printf("value of a divided to c and allocated to c\n");
printf("Result -> %d\n", c);
//Modulus and %= operator modulus right operand to the left operand and allocate the result to left operand
a = 5;
c = 3;
printf("a = %d \nc = %d\n", a, c);
c %= a;
printf("Division and operation-> %=\n");
printf("Expression -> c %= a\n");
printf("value of a modulus to c and allocated to c\n");
printf("Result -> %d\n", c);
return 0;
}

Output

C Assignment Operator Example
a = 84
c = 0
Expression -> c += a
value of a added to c and allocated to c
Result -> 84
a = 3
c = 83
Subtract and operation-> -=
Expression -> c -= a
value of a subtracted to c and allocated to c
Result -> 80
a = 11
c = 3
Multiply and operation-> *=
Expression -> c *= a
value of a multiplied to c and allocated to c
Result -> 33
a = 5
c = 10
Division and operation-> /=
Expression -> c /= a
value of a divided to c and allocated to c
Result -> 2
a = 5
c = 3
Modulus and operation-> %=
Expression -> c %= a
value of a modulus to c allocated to c
Result -> 3

In the next lesson, you will learn in detail about the if statement, a conditional statement we have seen in this course a few times.