Types of Operators

 

C Operators

Operators are the symbols which tell the computer to execute certain mathematical or logical operations. A mathematical or logical expression is generally formed with the help of an operator.

Operator performs an operation on data. They are classified into following −

·        Arithmetic operators.

·        Relational operators.

·        Logical operators.

·        Assignment operators.

·        Increment and decrement operators.

·        Bitwise operators.

·        Conditional operators.

·        Special operators.

 

Arithmetic operator

These operators are used for numerical calculations (or) to perform arithmetic operations like addition, subtraction etc.

Operator	Description	Example	a=20,b=10	Output
+	Addition	a+b	20+10	30
-	subtraction	a-b	20-10	10
*	multiplication	a*b	20*10	200
/	Division	a/b	20/10	2(quotient)
%	Modular Division	a%b	20%10	0 (remainder)

 

Relational operators

These are used for comparing two expressions.

Operator	Description	Example	a=20,b=10	Output
<	less than	a<b	10<20	1
<=	less than (or) equal to	a<=b	10<=20	1
>	greater than	a>b	10>20	0
>=	greater than (or) equal to	a>=b	10>=20	0
==	equal to	a==b	10==20	0
!=	not equal to	a!=b	10!=20	1

 

Logical Operators

These are used to combine 2 (or) more expressions logically.

They are logical AND (&&) logical OR ( || ) and logical NOT (!)

Logical NOT(!)

Operator	Description	Example	a=20,b=10	Output
&&	logical AND	(a>b)&&(a<c)	(10>20)&&(10<30)	0
||	logical OR	(a>b)||(a<=c)	(10>20)||(10<30)	1
!	logical NOT	!(a>b)	!(10>20)	1

 

Assignment operators

It assigns a value to a variable. The types of assignment operators are −

·        Simple assignment.

·        Simple assignment.

 

Operator	Description	Example
=	simple assignment	a=10
+=,-=,*=,/=,%=	compound assignment	a+=10"a=a+10 a=10"a=a-10

 

Increment and decrement operator

Let us understand what is an increment operator.

Increment operator (++)

This operator increments the value of a variable by 1

The two types include −

·        pre increment

·        post increment

 

 example 1)

main() {

   int a= 10, z;

   z= ++a;

   printf("z=%d", z);

   printf("a=%d", a);

}

z= 11

a=11

Example 2)

main() {

   int a= 10, z;

   z= a++;printf("z=%d", z);

   printf("a=%d", a);

}

z= 10

a=11

 

Bitwise Operator

Bitwise operators operate on bits.

 

Operator	Description
&	Bitwise AND
|	Bitwise OR
^	Bitwise XOR
<<	Left Shift
>>	Right shift
~	One's Complement

 

Left Shift

 

If the value is left shifted one time, then its value gets doubled.

For example, a = 10, then a<<1 = 20

 

Right shift

If the value of a variable is right shifted one time, then its value becomes half the original value.

For example, a = 10, then a>>1 = 5

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Milan Tomic

Hi. I’m Designer of Blog Magic. I’m CEO/Founder of ThemeXpose. I’m Creative Art Director, Web Designer, UI/UX Designer, Interaction Designer, Industrial Designer, Web Developer, Business Enthusiast, StartUp Enthusiast, Speaker, Writer and Photographer. Inspired to make things looks better.

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