Output a value to console after do...while statement is satisfied? - c++

Question

I'm extremely new to C++, and can't really figure this out. I've tried a couple things, but I feel like I'm just missing something simple.
I have this console application where a user inputs a pre-defined password. If the password is incorrect, it prompts them to re-enter the password. If the password is correct, is simply ends the program, but I want it to say "Access granted!" then end.
A side issue I'm having is when more than word is entered as the password, "Access Denied" is printed for each word.
string password;
cout << "Please enter the password!" << endl;
cin >> password;
if (password == "test") {
cout << "Access granted!";
} else {
do {
cout << "Access denied! Try again." << endl;
cin >> password;
} while (password != "test");
}
return 0;

Answer 1

You need to output your "Access granted" message after the loop exits, and you also need to clear the stdin input after each failed attempt to discard any words that are still waiting to be read:
#include <limits>
string password;
cout << "Please enter the password!" << endl;
cin >> password;
if (password == "test") {
cout << "Access granted!";
} else {
do {
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
cout << "Access denied! Try again." << endl;
cin >> password;
} while (password != "test");
cout << "Access granted!";
}
return 0;
Live Demo
Which would be better written like this instead:
#include <limits>
string password;
cout << "Please enter the password!" << endl;
do {
cin >> password;
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
if (password == "test") break;
cout << "Access denied! Try again." << endl;
}
while (true);
cout << "Access granted!";
return 0;
Live Demo
However, note that operator>> reads only 1 word at a time, so something like "test I GOT IN!" will also be accepted. You should use std::getline() instead to read an entire line at a time, instead of reading a word at a time:
#include <limits>
string password;
cout << "Please enter the password!" << endl;
do {
getline(cin, password);
if (password == "test") break;
cout << "Access denied! Try again." << endl;
}
while (true);
cout << "Access granted!";
return 0;
Live Demo