Bit Manipulation C++

check_odd_even.cpp

int x = 10;
if(x & 1) cout<<"odd";
else cout<<"even";
cout<<endl;

clearIthBit.cpp

int clearIthBit(int n, int i) {
    int mask = ~(1<<i);
    return (n&mask);
}

getIthBit.cpp

int getIthBit(int n, int i) {
    int mask = (1<<i);
    return (n & mask) > 0 ? 1 : 0;
}

setIthBit.cpp

int setIthBit(int n, int i) {
    int mask = (1<<i);
    return (n | mask);
}