Operators
Let us understand the below terms before we get into more details.
1. Operator
An operator is a symbol which has special meaning and performs an operation on single or multiple operands like addition, substraction etc. In the below example, +
is the operator.
Check result here
2. Operand
An operand is what operators are applied on. In the above example x
and y
are the operands.
Types of Operators in C++
1. Arithmetic Operators
C++ arithmetic operators are used to perform arithmetic operations on operands.
Operator | Description | Example |
---|---|---|
+ | Used to perform Addition | 8+2 = 10 |
- | Used to perform Subtraction | 12-2 = 10 |
* | Used to perform Multiplication | 5*2 = 10 |
/ | Used to perform Division | 100/10 = 10 |
% | Used to return Remainder | 40%10 = 0 |
++ | Used to perform Increment | int a=10; a++; // a becomes 11 |
-- | Used to perform Decrement | int a=10; a--; // a becomes 9 |
Example
Check Result here
2. Relational Operators
C++ relational operators are used to compare two operands.
Operator | Description | Usage |
---|---|---|
== | Is equal to | x == y |
!= | Not equal to | !=x |
> | Greater than | x > y |
>= | Greater than or equal to | x >= y |
< | Less than | x < y |
<= | Less than or equal to | x <= y |
Example
Check Result here
3. Bitwise Operators
C++ bitwise operators are used to perform bitwise operations on operands.
Operator | Description | Usage |
---|---|---|
& | Bitwise AND | (x > y) & (y > z) |
| | Bitwise OR | (x > y) | (y > z) |
^ | Bitwise XOR | (x > y) ^ (y > z) |
~ | Bitwise NOT | (~x) |
<< | Bitwise Left Shift | x << y |
>> | Bitwise Right Shift | x >> y |
4. Logical operators
Below are the logical operators present in the C++.
Operator | Description | Usage |
---|---|---|
&& | Logical AND | (x > y) && (y > z) |
|| | Logical OR | (x > y) || (y > z) |
! | Logical NOT | (!x) |
5. Assignment Operators
Below are the assignment operators present in the C++.
Operator | Description | Usage |
---|---|---|
= | Assign | int x = 10; |
+= | Add and assign | int x=10; x+=30; // x becomes 40 |
-= | Subtract and assign | int x=40; x-=10; // x becomes 30 |
*= | Multiply and assign | int x=10; x*=40; // x becomes 400 |
/= | Divide and assign | int x=100; x /= 10;// x becomes 10 |
%= | Modulus and assign | int x=100; x%=10; // x becomes 0 |
<<= | Left shift and assign | x <<= 2 is same as x = x << 2 |
>>= | Right shift and assign | x >>= 2 is same as x = x >> 2 |
&= | Bitwise and assign | x &= 10 is same as x = x & 10 |
^= | Bitwise exclusive OR and assign | x ^= 10 is same as x = x ^ 10 |
|= | Bitwise inclusive OR and assign | x |= 10 is same as x = x | 10 |
Example
Check Result here
6. Misc Operator
- Ternary Operator
If the operator is applied on a three operands then it is called ternary. This is also known as conditional operator as a condition is followed by ?
and true-expression which is followed by a :
and false expression. This is oftenly used as a shortcut to replace if-else statement
Example
Check Result here
- sizeof()
This operator is used to return the size of a variable.
Check Result here
Summary
Operator type | Description |
---|---|
Arithmetic Operator | + , - , * , / , % |
comparision Operator | < , > , <= , >=, != , == |
Bitwise Operator | & , ^ , |, ^ , ~, <<, >> |
Logical Operator | && , ||, ! |
Assignment Operator | = , += , -= , *= , /= , %=, <<=, >>=, &=, ^=, |= |
Ternary Operator | ? : |
sizeof operator | sizeof() |