Shortcut Operator in C

In C programming, there are several shortcut operators that allow performing operations and assignment in a concise way. These operators combine an operation with assignment, making code more efficient and readable. When using these operators, the left-hand operand is updated based on the right-hand expression, reducing the need for explicit repetition.

Programming Jan 23, 2025 0 27 Add to Reading List

Operator	Description
+=	Adds the right operand to the left operand and assigns the result to the left operand.
-=	Subtracts the right operand from the left operand and assigns the result to the left operand.
*=	Multiplies the left operand by the right operand and assigns the result to the left operand.
/=	Divides the left operand by the right operand and assigns the result to the left operand.
%=	Takes the modulus (remainder) of the left operand divided by the right operand and assigns the result to the left operand.

1.Addition:

int x = 5;
x += 3;  // Equivalent to: x = x + 3;
printf("%d", x);  // Output: 8

2.Subtraction

int x = 10;
x -= 4;  // Equivalent to: x = x - 4;
printf("%d", x);  // Output: 6

3.Multiplication

int x = 7;
x *= 2;  // Equivalent to: x = x * 2;
printf("%d", x);  // Output: 14

4.Division

int x = 20;
x /= 5;  // Equivalent to: x = x / 5;
printf("%d", x);  // Output: 4

5.Modulus

int x = 17;
x %= 3;  // Equivalent to: x = x % 3;
printf("%d", x);  // Output: 2

Reduces redundancy in expressions.
Improves code readability and maintainability.
Often results in more efficient execution by avoiding repeated variable lookups.