Question

How to set all bits of bitset to 1 in C++

Answer 1

#include <iostream>
#include <bitset> 

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

int main()
{
	std::bitset<4> bs; // 0000
	bs.set();          // 1111

	std::string s =
		bs.to_string<char, std::string::traits_type, std::string::allocator_type>();

	cout << s << endl;

	return 0;
}


/*
run:

1111

*/

 

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