14_1_bit_manipulation.cpp

#include<iostream>
using namespace std;


int getBit(int n, int pos)
{
    return ((n & (1<<pos))!=0);
    //return (n>>pos) & 1;
}


int setBit(int n,int pos)
{
    return (n | (1<<pos));
}


int clearBit(int n, int pos)
{
    int mask=~(1<<pos);
    return (n & mask);
}


int updateBit(int n, int pos,int value)
{
    int mask=~(1<<pos);
    n=n & mask;
    return (n | (value<<pos));
}


int main()
{
    cout<<getBit(5,2)<<endl;
    cout<<setBit(5,1)<<endl;
    cout<<clearBit(5,2)<<endl;
    cout<<updateBit(5,1,1)<<endl;

    return 0;
}