bitset::operator[] is a built-in function in C++ STL which is used to assign value to any index of a bitset.
Syntax:
bitset_operator[index] = value
Parameter: The parameter index specifies the position at which the value is to be assigned.
Return Value: The function returns the value to the bit at the index.
Below programs illustrate the bitset::operator[] function.
Program 1:
C++
// C++ program to illustrate the // bitset::operator[] #include <bits/stdc++.h> using namespace std;
int main()
{ // Initialization of bitset
// by zeros of size 6
bitset<6> b;
// initialises second index as 1
b[2] = 1;
// initialises fifth index as 1
b[5] = 1;
// prints the bitset
cout << "The bitset after assigning values is: " << b;
return 0;
} |
Output:
The bitset after assigning values is: 100100
Program 2:
C++
// C++ program to illustrate the // bitset::operator[] // assign value from a index #include <bits/stdc++.h> using namespace std;
int main()
{ // Initialization of bitset
// by zeros of size 6
bitset<6> b;
// initialises second index as 1
b[2] = 1;
// initialises fifth index as the same as b[2]
b[3] = b[2];
b[0] = b[5];
// prints the bitset
cout << "The bitset after assigning values is: " << b;
return 0;
} |
Output:
The bitset after assigning values is: 001100
Program 3:
C++
// C++ program to illustrate the // bitset::operator[] // prints the value of bit at index #include <bits/stdc++.h> using namespace std;
int main()
{ // Initialization of bitset
// by zeros of size 6
bitset<6> b;
// initialises second index as 1
b[2] = 1;
// initialises fifth index as the same as b[2]
b[3] = b[2];
b[0] = b[5];
cout << "The bit value at index 3 is " << b[3];
return 0;
} |
Output:
The bit value at index 3 is 1