//
// This is example code from Chapter 5.11 "Drill" of
// "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup
//

#include "../std_lib_facilities.h"

//------------------------------------------------------------------------------

int main()
try {
    // <<your code here>>
    keep_window_open();
    return 0;
}
catch (exception& e) {
    cerr << "error: " << e.what() << '\n'; 
    keep_window_open();
    return 1;
}
catch (...) {
    cerr << "Oops: unknown exception!\n"; 
    keep_window_open();
    return 2;
}

//------------------------------------------------------------------------------