C Operators - Arithmetic, Assignment, Relational and Logical

Operator Basics

Operators in C language are symbols which tells the compiler to perform some mathematical calculations or logical operations (we will look at in a while) on the variables and constants. For example, consider the mathematical operation "10 + 2 - a". Here '+' and '-' are called operators and the values on which operators work ('10', '2', and 'a') are known as operands. C programming language has wide variety of operators which are categorised into different groups based on the type of operations they perform.

Operator Arity

Arity implies the number of operands the operator is defined to work on. Based on that we have operators of following articles

Arity	Description
Unary Operator	Operates on single operand.
Binary Operator	Operates on two operands, For example: '/' (used for division).
Ternary Operator	Operates on three operands. Example : conditional operator (we will discuss about it in this chapter).
n-ary Operator	Operators that operate on more than 3 operands.

Types of Operators

Type of Operator	Description
Arithmetic operator	Arithmetic operators are used to perform mathematical operations.
Relational operator	Relational operators are used to perform comparison operations.
Logical operator	Logical operators are used to perform basic operation of boolean algebra ('AND', 'OR', and 'NOT').
Bitwise operator	Bitwise operators are used to perform bit wise manipulation on operands.
Assignment operator	Assignment operator is used to assign value of the second operand to first.
Conditional operator	Conditional operators operates on a condition and return result based on the truth value of condition.