# Operators in C

An expression consists of variables and constants separated by operators. C language uses 7 types of operators as listed below:

• Arithmetic Operators
• Relational Operators
• Logical Operators
• Increment and decrement operators
• Assignment Operators
• Conditional Operators
• Bitwise Operators

1. Arithmetic Operators : Arithmetic Operators are used to perform arithmetic operations.

 Operator Meaning Example Result + addition 4+2 6 - subtraction 4-2 2 * multiplication 4*2 8 / division 4/2 2 % modulus 4%2 0

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.

 Operator Meaning Example Result < less than 4<3 false > greater than 4>3 true <= less than or equal to 4<=3 false >= greater than or equal to 4>=3 true (==) equal to 4==3 false != not equal to 4!=3 true

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.

 Operator Meaning Example Result && 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. Consider the following examples :

a = 25;
a++ or ++a will produce the result a = 26
a = 25;
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.

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