Assignment Operators in C (2024)

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The following table lists the assignment operators supported by the C language −

Operator	Description	Example
=	Simple assignment operator. Assigns values from right side operands to left side operand	C = A + B will assign the value of A + B to C
+=	Add AND assignment operator. It adds the right operand to the left operand and assign the result to the left operand.	C += A is equivalent to C = C + A
-=	Subtract AND assignment operator. It subtracts the right operand from the left operand and assigns the result to the left operand.	C -= A is equivalent to C = C - A
*=	Multiply AND assignment operator. It multiplies the right operand with the left operand and assigns the result to the left operand.	C = A is equivalent to C = C A
/=	Divide AND assignment operator. It divides the left operand with the right operand and assigns the result to the left operand.	C /= A is equivalent to C = C / A
%=	Modulus AND assignment operator. It takes modulus using two operands and assigns the result to the left operand.	C %= A is equivalent to C = C % A
<<=	Left shift AND assignment operator.	C <<= 2 is same as C = C << 2
>>=	Right shift AND assignment operator.	C >>= 2 is same as C = C >> 2
&=	Bitwise AND assignment operator.	C &= 2 is same as C = C & 2
^=	Bitwise exclusive OR and assignment operator.	C ^= 2 is same as C = C ^ 2
\|=	Bitwise inclusive OR and assignment operator.	C \|= 2 is same as C = C \| 2

Example

Try the following example to understand all the assignment operators available in C −

Live Demo

#include <stdio.h>main() { int a = 21; int c ; c = a; printf("Line 1 - = Operator Example, Value of c = %d\n", c ); c += a; printf("Line 2 - += Operator Example, Value of c = %d\n", c ); c -= a; printf("Line 3 - -= Operator Example, Value of c = %d\n", c ); c *= a; printf("Line 4 - *= Operator Example, Value of c = %d\n", c ); c /= a; printf("Line 5 - /= Operator Example, Value of c = %d\n", c ); c = 200; c %= a; printf("Line 6 - %= Operator Example, Value of c = %d\n", c ); c <<= 2; printf("Line 7 - <<= Operator Example, Value of c = %d\n", c ); c >>= 2; printf("Line 8 - >>= Operator Example, Value of c = %d\n", c ); c &= 2; printf("Line 9 - &= Operator Example, Value of c = %d\n", c ); c ^= 2; printf("Line 10 - ^= Operator Example, Value of c = %d\n", c ); c |= 2; printf("Line 11 - |= Operator Example, Value of c = %d\n", c );}

When you compile and execute the above program, it produces the following result −

Line 1 - = Operator Example, Value of c = 21Line 2 - += Operator Example, Value of c = 42Line 3 - -= Operator Example, Value of c = 21Line 4 - *= Operator Example, Value of c = 441Line 5 - /= Operator Example, Value of c = 21Line 6 - %= Operator Example, Value of c = 11Line 7 - <<= Operator Example, Value of c = 44Line 8 - >>= Operator Example, Value of c = 11Line 9 - &= Operator Example, Value of c = 2Line 10 - ^= Operator Example, Value of c = 0Line 11 - |= Operator Example, Value of c = 2

c_operators.htm

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C - Overview:
See Also
What is the difference between = (Assignment) and == (Equal to) operators - GeeksforGeeks
- Understand the basic structure and syntax of the C programming language.
- Know the fundamental components like variables, constants, data types, and operators.
C - Environment Setup:
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C - Program Structure:
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C - Constants:
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C - Storage Classes:
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C - Operators:
- Comprehensive understanding of various operators, including arithmetic, relational, logical, bitwise, and assignment operators.
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C - Loops:
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C - Functions:
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C - Header Files:
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C - Type Casting:
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C - Error Handling:
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C - Recursion:
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C - Variable Arguments:
- Knowledge of functions with variable arguments.
C - Memory Management:
- Proficiency in dynamic memory allocation and deallocation.
C - Command Line Arguments:
- Understanding how to handle command line arguments in C.

This comprehensive knowledge allows me to confidently navigate through the provided C programming tutorial, including the specific focus on assignment operators and the accompanying example. If you have any questions or need further clarification on any of these topics, feel free to ask.