Operators available in C

Operators

Operators are the symbol which operates on value or a variable. For example: + is a operator to perform addition.
C programming language has wide range of operators to perform operations. For better understanding of operators in C, these operators can be classified as:

Operators in C programming
Arithmetic Operators
Increment and Decrement Operators
Assignment Operators
Relational Operators
Logical Operators
Conditional Operators
Bitwise Operators

Arithmetic Operators:

Operator	Meaning of Operator
+	addition or unary plus
-	subtraction or  unary minus
*	multiplication
/	division
%	remainder after division( modulo division)

Increment and decrement operators:

In C, ++ and -- are called increment and decrement operators respectively. Both of these operators are uniary operators, i.e, used on single operand. ++ adds 1 to operand and -- subtracts 1 to operand respectively. For example:

Let a=5 and b=10
a++;  //a becomes 6
++a;  //a becomes 7
--b;  //b becomes 9
b--;  //b becomes 8 

Assignment Operators:

The most common assignment operator is '='. This operator assigns the value in right side to the left side. For example:

var=5  //5 is assigned to var
a=c;   //value of c is assigned to a
5=c;   // Error! 5 is a constant and its value can't be changed. 

Operator	Example	Same as
=	a=b	a=b
+=	a+=b	a=a+b
-=	a-=b	a=a-b
*=	a*=b	a=a*b
/=	a/=b	a=a/b
%=	a%=b	a=a%b

Relational Operator:

Relational operators are used to test relationship between two operands. If the relation is true, it returns value 1 and if the relation is false, it returns value 0. For example:

a>b

Here, > is a relational operator. If a is greater than b, a>b returns 1 if not then, it returns 0.
Relational operators are normally used in decision making and loops in C programming.

Operator	Meaning of Operator	Example
==	Equal to	5==3 returns false (0)
>	Greater than	5>3 returns true (1)
<	Less than	5<3 returns false (0)
!=	Not equal to	5!=3 returns true(1)
>=	Greater than or equal to	5>=3 returns true (1)
<=	Less than or equal to	5<=3 return false (0)

Logical Operators

Logical operators are used to combine expressions containing relation operators. In C, there are 3 logical operators.

Operator	Meaning of Operator	Example
&&	Logial AND	If c=5 and d=2 then,((c==5) && (d>5)) returns false.
||	Logical OR	If c=5 and d=2 then, ((c==5) || (d>5)) returns true.
!	Logical NOT	If c=5 then, !(c==5) returns false.

Conditional Operator:

Conditional operator takes three operands and consists of two symbols ? and : . Conditional operators are used for decision making in C. For example:

c=(c>0)?10:-10; 

If c is greater than 0, value of c will be 10 but, if c is less than 0, value of c will be -10.
To learn more, visit conditional operators page.

Bitwise Operators:

A bitwise operator works on each bit of data. Bitwise operators are used in bit level programming.

Operators	Meaning of operators
&	Bitwise AND
|	Bitwise OR
^	Bitwise exclusive OR
~	Bitwise complement
<<	Shift left
>>	Shift right

Bitwise operator is advance topic in programming . You go further in C programming without knowing bitwise programming