In order to use [std::bitset](<http://en.cppreference.com/w/cpp/utility/bitset>)
you will have to include [<bitset>
header](http://en.cppreference.com/w/cpp/header/bitset).
#include <bitset>
std::bitset
overloads all of the operator functions to allow the same usage as the c-style handling of bitsets.
References