Question

How to check if specific bit in bitset is set with C++

Answer 1

#include <iostream>
#include <bitset>
#include <string>

using std::cout;
using std::endl;

int main()
{
	std::bitset<16> bo(std::string("1011"));
	
	cout << bo << endl;

	if (bo[0] == 1)
		cout << "bit 0 is set" << endl;
	return 0;
}


/*
run:

0000000000001011
bit 0 is set

*/

 

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Answer 2

#include <iostream>
#include <bitset>
#include <string>

using std::cout;
using std::endl;

int main()
{
	std::bitset<16> bo(std::string("1011"));
	
	cout << bo << endl;

	if (bo.test(0) == 1)
		cout << "bit 0 is set" << endl;
	return 0;
}


/*
run:

0000000000001011
bit 0 is set

*/

 

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