stl bitset

#include <iostream>
#include <bitset>

using namespace std;

int main()
{
  bitset<12>mask(127);
  bitset<12>haha(128);
  
  cout << "mask= " << mask << endl;
  cout << mask.to_ulong() << endl;
  cout << "haha= " << haha << endl;
  haha |= mask;
  cout << "haha|mask= " << haha << endl;
  haha &= mask;
  cout << "haha&mask= " << haha << endl;
  haha ^= mask;
  cout << "haha^mask= " << haha << endl;



  return 0;
}