Declaration

unsigned long long bitset<N>::to_ullong() const;

Description

This is the member function to_ullong() for the bitset class template. This function returns the unsigned long long value equivalent of the bitset.

Header Include

#include <bitset>

Example

#include <bitset>
#include <iostream>

int main()
{
	using namespace std;

	// Create a bitset
	bitset<4> qBits(5);
	cout << "bitset<4> : "<< qBits << endl;

	// Output the unsigned long long value
	unsigned long long ullValue = qBits.to_ullong();
	cout << "The bitset value is " << ullValue << endl;

	// Keep the window open
	cin.get();
	return 0;
}

Output