# C++ Operators C-PLUS-PLUS

### C++ Operators

Operators are used to performing operations on variables and values.

C++ divides the operators into the following groups:

• Arithmetic operators
• Assignment operators
• Comparison operators
• Logical operators
• Bitwise operators

### Arithmetic Operators

Arithmetic operators are used to performing common mathematical operations.

Operator Name Description Example
+ Addition Adds together two values x + y
- Subtraction Subtracts one value from another x - y
* Multiplication Multiplies two values x * y
/ Division Divides one value from another x / y
% Modulus Returns the division remainder x % y
++ Increment Increases the value of a variable by 1 ++x
-- Decrement Decreases the value of a variable by 1 --x

### Example

#include <iostream>
using namespace std;

int main() {
int sum1 = 100 + 50;        // 150 (100 + 50)
int sum2 = sum1 + 250;      // 400 (150 + 250)
int sum3 = sum2 + sum2;     // 800 (400 + 400)
cout << sum1 << "\n";
cout << sum2 << "\n";
cout << sum3;
return 0;
}

Output:

150
400
800

The addition assignment operator (`+=`) adds a value to a variable:

int x = 10;
x += 5;

### C++ Assignment Operators

Assignment operators are used to assign values to variables.

In the example below, we use the assignment operator (`=`) to assign the value 10 to a variable called x:

Example
int x = 10;

The addition assignment operator (`+=`) adds a value to a variable.

### Example

#include <iostream>
using namespace std;

int main() {
int x = 10;
x += 5;
cout << x;
return 0;
}

Output:

15

A list of all assignment operators:

Operator Example Same As
= x = 5 x = 5
+= x += 3 x = x + 3
-= x -= 3 x = x - 3
*= x *= 3 x = x * 3
/= x /= 3 x = x / 3
%= x %= 3 x = x % 3
&= x &= 3 x = x & 3
|= x |= 3 x = x | 3
^= x ^= 3 x = x ^ 3
>>= x >>= 3 x = x >> 3
<<= x <<= 3 x = x << 3

### C++ Comparison Operators

Comparison operators are used to compare two values.

Note: The return value is either true (1) or false (0).

Operator Name Example
== Equal to x == y
!= Not equal x != y
> Greater than x > y
< Less than x < y
>= Greater than or equal to x >= y
<= Less than or equal to x <= y

### Example

#include <iostream>
using namespace std;

int main() {
int x = 5;
int y = 3;
cout << (x > y); // returns 1 (true) because 5 is greater than 3
return 0;
}

Output:

1

### C++ Logical Operators

Logical operators are used to determine the logic between variables or values:

Operator Name Description Example
&&  Logical and Returns true if both statements are true x < 5 &&  x < 10
||  Logical or Returns true if one of the statements is true x < 5 || x < 4
! Logical not Reverse the result, returns false if the result is true !(x < 5 && x < 10)

### Example

#include <iostream>
using namespace std;

int main() {
int x = 5;
int y = 3;
cout << (x > 3 && x < 10); // returns true (1) because 5 is greater than 3 AND 5 is less than 10
return 0;
}

Output:

1