Operator is a special symbol that tells the compiler to perform specific mathematical or logical Operation.
- Arithmetic Operators
- Relational Operators
- Logical Operators
- Bitwise Operators
- Assignment Operators
- Ternary or Conditional Operators
- Shift Operators
- Unary Operators
- Comma Operator
Arithmetic Operators
Given table shows all the Arithmetic operator supported by C Language. Lets suppose variable A hold 8 and B hold 3.
Operator | Example (int A=8, B=3) | Result |
---|---|---|
+ | A+B | 11 |
– | A-B | 5 |
* | A*B | 24 |
/ | A/B | 2 |
% | A%4 | 0 |
Relational Operators
Which can be used to check the Condition, it always return true or false. Lets suppose variable A hold 8 and B hold 3.
Operators | Example (int A=8, B=3) | Result |
---|---|---|
< | A<B | False |
<= | A<=10 | True |
> | A>B | True |
>= | A<=B | False |
== | A== B | False |
!= | A!=(-4) | True |
Logical Operator
Which can be used to combine more than one Condition?. Suppose you want to combined two conditions A<B and B>C, then you need to use Logical Operator like (A<B) && (B>C). Here && is Logical Operator.
Operator | Example (int A=8, B=3, C=-10) | Result |
---|---|---|
&& | (A<B) && (B>C) | False |
|| | (B!=-C) || (A==B) | True |
! | !(B<=-A) | True |
Truth table of Logical Operator
C1 | C2 | C1 && C2 | C1 || C2 | !C1 | !C2 |
---|---|---|---|---|---|
T | T | T | T | F | F |
T | F | F | T | F | T |
F | T | F | T | T | F |
F | F | F | F | T | T |
Assignment operators
Which can be used to assign a value to a variable. Lets suppose variable A hold 8 and B hold 3.
Operator | Example (int A=8, B=3) | Result |
---|---|---|
+= | A+=B or A=A+B | 11 |
-= | A-=3 or A=A+3 | 5 |
*= | A*=7 or A=A*7 | 56 |
/= | A/=B or A=A/B | 2 |
%= | A%=5 or A=A%5 | 3 |
=a=b | Value of b will be assigned to a |
Shift Operators
Shift Operators are used to shift Bits of any variable. It is of three types,
- Left Shift Operator
<<
- Right Shift Operator
>>
- Unsigned Right Shift Operator
>>>
Bitwise Operators
There are used to change individual bits into a number. They work with only integral data types like char
, int
and long
and not with floating point values.
- Bitwise AND operators
&
- Bitwise OR operator
|
- And bitwise XOR operator
^
- And, bitwise NOT operator
~
They can be used as shorthand notation too, & =
, |=
, ^=
, ~=
etc.
Unary Operators
These are the operators which work on only one operand. There are many unary operators, but increment ++
and decrement --
operators are most used.
Other Unary Operators : address of &
, dereference *
, new and delete, bitwise not ~
, logical not !
, unary minus -
and unary plus +
.
Ternary Operator
The ternary if-else ? :
is an operator which has three operands.
int a = 10; a > 5 ? cout << "true" : cout << "false"
Comma Operator
This is used to separate variable names and to separate expressions. In case of expressions, the value of last expression is produced and used.
Example :
int a,b,c; // variables declaration using comma operator a=b++, c++; // a = c++ will be done.