The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference
by Nicolai M. Josuttis, Addison-Wesley, 1999
© Copyright Nicolai M. Josuttis 1999
#include <bitset>
#include <iostream>
#include <string>
#include <limits>
using namespace std;
int main()
{
/* print some numbers in binary representation
*/
cout << "267 as binary short: "
<< bitset<numeric_limits<unsigned short>::digits>(267)
<< endl;
cout << "267 as binary long: "
<< bitset<numeric_limits<unsigned long>::digits>(267)
<< endl;
cout << "10,000,000 with 24 bits: "
<< bitset<24>(1e7) << endl;
/* transform binary representation into integral number
*/
cout << "\"1000101011\" as number: "
<< bitset<100>(string("1000101011")).to_ulong() << endl;
}