#include
#include
using std::cout;
using std::endl;
using std::setfill;
using std::setw;
int main() {
unsigned long flags = 0xFF; // Flags variable
unsigned long bit1mask = 0x1; // Selects bit 1
unsigned long bit6mask = 0x20; // Selects bit 6
unsigned long bit20mask = 0x80000; // Selects bit 20
cout << "\nSelect bit 1 from flags : " << setw(8) << (flags & bit1mask);
cout << "\nSelect bit 6 from flags : " << setw(8) << (flags & bit6mask);
cout << "\nSwitch off bit 6 in flags : " << setw(8) << (flags &= ~bit6mask);
cout << "\nSwitch on bit 20 in flags : " << setw(8) << (flags |= bit20mask);
cout << endl;
return 0;
}
Select bit 1 from flags : 1
Select bit 6 from flags : 32
Switch off bit 6 in flags : 223
Switch on bit 20 in flags : 524511