bitset c 2b 2b

1// Instantiating and printing a bitset
2
3#include <iostream>
4#include <bitset>
5
6int main() {
7  	// A bitset. The size must be able to be determined
8  	// at compile time.
9  	//
10  	// The bitset can be set using a number or a string
11	std::bitset<8> byte1 = bitset<8>(97);
12  	std::bitset<8> byte2 = bitset<8>("0001101")
13  
14  	std::cout << byte1; // Output: 01100001
15}

1< Bitset > The C++ standard library also provides the bitset structure, which
2corresponds to an array whose each value is either 0 or 1. 
3  
4  string s1 = bitset<8>(6).to_string(); //convert number to binary string
5  cout<<s1<<endl; //00000110
6  string s2 = "110010"; 
7  bitset<8> b1(s2);   // [0, 0, 1, 1, 0, 0, 1, 0] 
8  cout << b1.count(); //3

1// constructing bitsets
2#include <iostream>       // std::cout
3#include <string>         // std::string
4#include <bitset>         // std::bitset
5
6int main ()
7{
8  std::bitset<16> foo;
9  std::bitset<16> bar (0xfa2);
10  std::bitset<16> baz (std::string("0101111001"));
11
12  std::cout << "foo: " << foo << '\n';
13  std::cout << "bar: " << bar << '\n';
14  std::cout << "baz: " << baz << '\n';
15
16  return 0;
17}