Little tidbit that a friend asked me to write some time ago, in order for him to understand bitwise operations

BitExtract.hxx

#include <iostream>
#include <cstdint>

int64_t number = 0;
int64_t index = 0;

int main()
{
	while(true)
	{
		std::cout << "Enter a number to parse" << std::endl;
		std::cin >> number;
		std::cout << "Enter the bit to extract" << std::endl;
		std::cin >> index;
		std::cout << ((number & (1 << (index - 1))) >> (index - 1));
		std::cout << std::endl;
	}
}

BitExtractor.hxx

#include <iostream>
#include <cstdint>

int64_t number = 0;


int main()
{
	while(true)
	{
		std::cout << "Enter a number to parse" << std::endl;
		std::cin >> number;
	
		for(int i = (sizeof(number) * 8) - 1; i >= 0; --i)
		{
			std::cout << ((number & ((int64_t)1 << i)) >> i);
		}
		std::cout << std::endl;
	}
}