6 Types of bitwise operators in C++

6 Types of bitwise operators in C++



There are 6 Types of bitwise operators in C++. These operators can manipulate bits of a numeric value. These operator are:

 **Value is converted into  into equivalent binary form before applying bitwise operators.

i. Bitwise AND operator in C++  (&)

& (ampersand sign) represents Bitwise AND operator in C++.  If any input of bitwise AND operator is 0, output is 0. If all inputs are 1, output is 1.

Truth table  of Bitwise AND operator in C++

Input1 Input2 Output
0 0 0
0 1 0
1 0 0
1 1 1

//Program to demonstrate the use of bitwise and operator.

#include<iostream> 
using namespace std;
int main()
{
int n1=10,n2=7,n3;
n3= n1&n2;                 
cout<<"\nResult=“<<n3;
return(0);  
}

Output:

Result=2

Binary equivalent of n1=10  is 1010 and binary equivalent of n2=7 is 0111. 

n1&n2  =0010

Decimal equivalent of 0010 is 2.

 

ii. Bitwise OR operator in C++ (|)

ii. Bitwise OR operator in C++  (|)

| (Pipe) represents Bitwise OR operator in C++.  If any input of bitwise OR  operator is 1, output is 1. If all inputs are 0, output is 0.

Truth table  of Bitwise OR operator in C++

Input1 Input2 Output
0 0 0
0 1 1
1 0 1
1 1 1

//Program to demonstrate the use of bitwise OR operator.

#include<iostream> 
using namespace std;
int main()
{
int n1=10,n2=7,n3;
n3=n1|n2;        
cout<<"\nResult=“<<n3;
return(0);  
}

Output:

Result=15

Binary equivalent of n1=10  is 1010 and binary equivalent of n2=7 is 0111. 

n1|n2  =1111

Decimal equivalent of 1111 is 15.

iii. Bitwise XOR operator in C++ (^)

^ (Caret sign) represents Bitwise XOR operator in C++.  If odd number of inputs to bitwise XOR  are 1, output is 1 otherwise output is 0.

Truth table for Bitwise XOR operator in C++

Input1 Input2 Output
0 0 0
0 1 1
1 0 1
1 1 0

//Program to demonstrate the use of bitwise XOR operator.

#include<iostream> 
using namespace std;
int main()
{
int n1=10,n2=7,n3;
n3=n1|n2;     
cout<<"\nResult=“<<n3;
return(0);  
}
Output:
Result=13

Binary equivalent of n1=10  is 1010 and binary equivalent of n2=7 is 0111. 

n1^n2  =1101

Decimal equivalent of 1111 is 13.

iv. Bitwise complement operator in C++ (~)

! (tild sign) represents Bitwise complement operator in C++.  If input to bitwise NOT operator is 1, output is 0, If input to bitwise NOT operator is 0, output is 1,

Truth table for Bitwise Complement operator in C++

Input1 Output
0 1
1 0

//Program to demonstrate the use of bitwise complement operator.

#include<iostream> 
using namespace std;
int main()
{
unsigned int n1=4294967295,n2;
n2=~n1;
cout<<"\nResult="<<n2;
return(0);  
}

Output:

Result=0

Binary equivalent of n1=4294967295  is 11111111111111111111111111111110 and binary equivalent of n2 is 00000000000000000000000000000001. 

~n1  =11111111111111111111111111111110

Decimal equivalent of 11111111111111111111111111111110 is 1.

v. Bitwise Left Shift operator in C++ (<<)

<< (Double Less than sign) represents Bitwise Left Shift operator in C++.  If shifts the bits towards left by specified number of positions,

//Program to demonstrate the use of bitwise Left Shift operator.

#include<iostream> 
using namespace std;
int main()
{
int n1=10,n2;
n2=(n1<<1);
cout<<"\nResult=“<<n2;
return(0);  
}

Output:

Result=20

Binary equivalent of n1=10 is 1010

n1<<1  =10100

Decimal equivalent of 10100 is 20.

 vi. Bitwise Right Shift operator in C++ (>>)

>> (Double Greater than sign) represents Bitwise Right Shift operator in C++.  If shifts the bits towards right by specified number of positions.

//Program to demonstrate the use of bitwise Right Shift operator.

#include<iostream> 
using namespace std;
int main()
{
int n1=10,n2;
n2=(n1>>1);
cout<<"\nResult=“<<n2;
return(0);  
}

Output:

Result=5

Binary equivalent of n1=10 is 1010

n1>>1  =101

Decimal equivalent of 101 is 5.



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Lesson tags: bitwise and in c, bitwise complement in c, bitwise or in c, bitwise xor in c, left shift in c++, right shift in c++
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