C++/Console/cin manipulator


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Материал из C\C++ эксперт
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A input manipulator: sound bell

#include <iostream>
#include <cstring>
using namespace std;

istream &getpass(istream &stream)
{
  cout << "\a";                 // sound bell
  cout << "Enter password: ";
  return stream;
}
int main()
{
  char pw[80];
  do {
    cin >> getpass >> pw;
  } while (strcmp(pw, "password"));
  cout << "Logon complete\n";
  return 0;
}


Do while loop with a input manipulator

#include <iostream>
#include <cstring>
using namespace std;

istream &getpass(istream &stream)
{
  cout << "\a";  // sound bell
  cout << "Enter password: ";
  return stream;
}
int main()
{
  char pw[80];
  do {
    cin >> getpass >> pw;
  } while (strcmp(pw, "password"));
  cout << "Logon complete\n";
  return 0;
}