C++ Operators

Operators are special symbols that perform operations on variables and values.

Example
int a = 5 + 3; // '+' is an addition operator
 
1. Arithmetic Operators

Used for mathematical calculations.
 
Operator        Description   Example
+                      Addition        a + b
-                       Subtraction   a - b
*                      Multiplication          a * b
/                      Division         a / b
%                     Modulus (remainder)         a % b
++                   Increment     ++a or a++
--                     Decrement    --a or a--
 
2. Relational Operators

Used to compare values (result is true or false).
 
Operator        Meaning                    Example
==                   Equal to                     a == b
!=                    Not equal to              a != b
>                     Greater than              a > b
<                     Less than                    a < b
>=                  Greater than or equal to     a >= b
<=                  Less than or equal to           a <= b

3. Logical Operators

Used to combine conditions.

Operator Meaning

&&                 Logical AND

`

!                 Logical NOT

4. Assignment Operators

Used to assign values.

Operator Example Meaning

=                 a = 5 Assign

+=                 a += 2 a = a + 2

-=                 a -= 2 a = a - 2

*=                 a *= 2 a = a * 2

/=                 a /= 2 a = a / 2

%=                 a %= 2 a = a % 2

5. Increment and Decrement Operators

Increase or decrease value by 1.

Operator Meaning

++                 Increment

--                 Decrement

Example:

int a = 5;

a++;   // a becomes 6

6. Bitwise Operators

Operate on bits.

Operator Meaning

&                 Bitwise AND

^                 Bitwise XOR

~                 Bitwise NOT

<<                 Left shift

>>                 Right shift

7. Conditional (Ternary) Operator

Short form of if-else.

condition ? value_if_true : value_if_false;

Example:

int max = (a > b) ? a : b;

8. Special Operators

Operator Use

sizeof         Size of variable

,                 Comma operator

.                 Member access

->                 Pointer member access

::                 Scope resolution

https://www.youtube.com/channel/UCKLRUr6U5OFeu7FLOpQ-FSw/videos