Introduction:

C supports a rich set of built – in operators. We have already used several of them, such as =, +, -, *, & and <. An operator is a symbol that tells the computer to perform certain mathematical or logical manipulations. 

Operators are used in programs to manipulate data and variables. They usually form a part of the mathematical or logical expressions.

C operators can be classified into a number of categories. They include:

1.            Arithmetic operators
2.     .      Relational operators
3.     .       Logical operators
4.       .     Assignment operators
5.       .     Increment and Decrement operators
6.             Conditional operators
7.      .       Bitwise operators
8.       .      Special operators

An expression is a sequence of operands and operators that reduces to a single value. For Example:

                                    20+2

is an expression whose value is 25. The value can be any type other than void.

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