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.

#include <iostream>
using namespace std;

int main() 
{
   int x, y, sum;
   x = 10;
   y = 20;
 
   sum = x + y;
   cout << "Sum : " << sum;
 
   return(0);
}

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.

Example

#include <iostream>
using namespace std;

int main() 
{
   int x, y, sum, diff, product, division, mod, inc, dec;
   x = 90;
   y = 10;
 
   sum = x + y;
   cout << "Sum : " << sum << endl;
   
   diff = x - y;
   cout << "Difference : " << diff << endl;
   
   product = x * y;
   cout << "Product : " << product << endl;
   
   division = x / y;
   cout << "Division : " << division << endl;
   
   mod = x % y;
   cout << "Remainder : " << mod << endl;
   
   inc = x++;
   cout << "x value after incrementing : " << x << endl;
   
   dec = x--;
   cout << "x value after decrementing : " << x;
 
   return(0);

}

Check Result here

2. Relational Operators

C++ relational operators are used to compare two operands.

Example

#include <iostream>
using namespace std;

int main() 
{
   int x = 90;
   int y = 10;
   
  if ( x == y) {
    cout << "x and y are equal" << endl;
  }
  
  if ( x != y) {
    cout << "x and y are not equal" << endl;
  }
  
  if ( x > y) {
    cout << "x is greater than y" << endl;
  }
  
  if ( x < y) {
    cout << "x is less than y" << endl;
  }
}

Check Result here

3. Bitwise Operators

C++ bitwise operators are used to perform bitwise operations on operands.

4. Logical operators

Below are the logical operators present in the C++.

5. Assignment Operators

Below are the assignment operators present in the C++.

Example

#include <iostream>
using namespace std;

int main() 
{
 int x = 10; // assigning 10 to x 
cout << "x value: " << x << endl;
        
x+=30;
cout << "x value after += operation: " << x << endl;
        
x-=10;
cout << "x value after -= operation: " << x << endl;
        
x*=10;
cout <<"x value after *= operation: " << x << endl;
        
x/=10;
cout <<"x value after /= operation: " << x << endl;
        
x%=10;
cout <<"x value after %= operation: " << x;   
   
}

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

#include <iostream>
using namespace std;

int main() 
{
    int x = 10;
    int y = 90;

    int z = x > y ? x : y;

    cout << "Larger Number is: " << z;
}

Check Result here

• sizeof()

This operator is used to return the size of a variable.

#include <iostream>
using namespace std;

int main() 
{
  
 int x = 90;
 int y = sizeof(x);

 cout <<"Size of x is: " <<  y;
}

Check Result here

Summary