how to make a login c 2b 2b

1// a simple login for c++ using while loops and io (input output)
2#include <iostream>
3#include <string>
4
5using namespace std;
6
7int main() {
8  cout << "please enter password";
9  string pass = "0";                  // making a string for user input
10  cin >> pass;                        // could be replaced with getline(cin, pass);
11  while (pass = "1234") {             // while loop for when password is wrong
12    cout << "incorrect, try again";
13    cin >> pass;                      // could be replaced with getline(cin, pass);
14  }
15  cout << "correct password";         // runs when the while loop is no longer happening
16}