Operators in C

An expression consists of variables and constants separated by Operators in C. There are 7 types of Operators in C as listed below:

1. Arithmetic Operators :

Arithmetic Operators are used to perform arithmetic operations.

OperatorMeaningExampleResult
+addition4+26
-subtraction4-22
*multiplication4*28
/division4/22
%modulus4%20

2. Relational Operators :

Relational Operators are used to compare the values of operands or expressions to produce a logical value. A logical is either true or false.

OperatorMeaningExampleResult
<less than4<3false
>greater than4>3true
<=less than or equal to4<=3false
>=greater than or equal to4>=3true
(==)equal to4==3false
!=not equal to4!=3true

3. Logical Operators :

Logical Operators are used to connect more relational operations to form a complex expression that is called Logical Operators or Logical expression. A value obtained by evaluating a logical expression is always logical either true or false.

OperatorMeaningExampleResult
&&logical and(4<3)&&(4>3)false
||logical or(4<2) || (4>3)true
!logical not! (4<2)true

4. Increment and Decrement operators (++ and – –) :

Increment operator (++) is used to increase the value of an integer or char variable by 1. Decrement operator (- -) is used to reduce the value of an integer or char variable by 1.
Example

a = 25<strong>;</strong>
a++ or ++a will produce the result a = 26
a = 25<strong>;</strong>
a- - or - -a will produce the result a = 24

5. Assignment Operators :

Assignment Operators are used to perform arithmetic operations while assigning a value to a variable.

6. Conditional Operators or Ternary Operators (?:) :

Conditional Operators is used to check a condition and select a value depending on the value of the condition. Normally the selected value will be assigned to a variable which has the following form :

variable=(condition)?value1:value2;

Example :

big=(x>y)?x:y;

7. Bitwise Operators :

Bitwise Operators are used to perform operations at a binary digit level. These operators are not commonly used and used only in special applications where optimized use of storage is required.

OperatorMeaning
<<Shifts the bits to left
>>Shifts the bit to right
~Bitwise inversion
&Bitwise logical and
|Bitwise logical or
^Bitwise exclusive or