In this tutorial, you shall learn about Bitwise Complement Operator in C++ programming language, its syntax, and how to use this operator with the help of examples.
C++ Bitwise Complement
C++ Bitwise Complement Operator is used to perform complement operation for a given operand. Complement Operator takes only one operand, and that is on right side.
Syntax
The syntax for Bitwise Complement operation for x is
~x
The operand can be of type int or char. Bitwise Complement operator returns a value of type same as that of the given operands.
Truth Table
The following table illustrates the output of Complement operation between two bits.
| bit | ~bit |
|---|---|
| 0 | 1 |
| 1 | 0 |
Examples
1. Bitwise Complement of an integer value
In the following example, we take an integer value in x, and find the bitwise complement of x.
main.cpp
#include <iostream>
using namespace std;
int main() {
int x = 5;
int result = ~x;
cout << "Result : " << result << endl;
} Output
Result : -6 Program ended with exit code: 0
2. Bitwise Complement of an char value
In the following example, we take a char value in x, and find the bitwise complement of x.
main.cpp
#include <iostream>
using namespace std;
int main() {
char x = 'a';
char result = ~x;
cout << "Result : " << result << endl;
} Output
Result : \236 Program ended with exit code: 0
Conclusion
In this C++ Tutorial, we learned what Bitwise Complement Operator is, its syntax, and how to use this operator in C++ programs, with the help of examples.