Operators in C

In C language operators are pre define. It is represented by symbols. An expression is created by using one or more operand with operator.

In C language there are four basic type of operator.

1. Unary Operator
2. Binary Operator
3. Conditional Operator
4. Bit wise Operator

1. Unary Operator : Unary operator are those operator in which one operator is used to create one expression.
There are three type of unary operator:

1. Increment Operator
2. Decrement Operator
3. Size of Operator

a. Increment Operator :This operator is used to increment operand by 1. Such as : ++i or i++ or i=i+1

b. Decrement Operator :This operator is used to decrement operand by 1. Such as : --i or i-- or i=i-1

c. Size of Operator :This operator is used to specify the size of memory sued by operand. Such as : sizeof(i);

2. Binary Operator :Binary operator are those operator in which two operator are used to create one expression.
There are four type of binary operators:

1. Mathematical Operator
2. Relational Operator
3. Logical Operator
4. Assignment Operator

a. Mathematical Operator :This operator is used to do all type of arithmetic calculations. Such as:

• Addition (+)
• Subtraction (-)
• Multiplication (*)
• Division (/)
• Modulus (%) it return remainder After integer division.

b. Relational Operator :It is used to check the relation between two variables. Such as:

• Less then (<)
• Greater then (>)
• Less then or equal (<=)
• Greater then or equal (>=)
• Equal to (==)
• Not Equal to (!=)

c. Logical Operator :It is used to perform logical operations. It is generally used in if condition such as:

• AND (&&) It must contain two conditions
• OR (||) It must contain two conditions
• NOT (!)

d. Assignment Operator :It is used to assign any value or any expression such as : a=b+c; , a=6;

3. Conditional Operator (?:) : Conditional operator is used for decision making. It is also known as single line if-else statement.

4. Bit-wise operator :It is used to perform bit-wise operation. Binary bits are used to perform operation. That involve the manipulation of individual binary bit. It is three type :

• Bit-wise or conferment operator (~)
• Bit-wise logical operator (&)(^)
• Bit-wise shift operator (<< and >>)

Hierarchy (Precedence) of operators
Precedence of operators are as follow: