void Display(ReversibleStack& rs)
{
// Implement this function (use only Push, Pop and IsEmpty member functions of stack)
// After the function completes, the stack should be unmodified (see assignment instructions)
ReversibleStack buffer;
int num;
if (rs.isEmpty())
{
cout << "Stack is empty.\n" << endl;
return;
}
while (!rs.isEmpty())
{
num = rs.Pop();
cout << num << " ";
buffer.Push(num);
}
cout << "\n" << endl;
while (!buffer.isEmpty()) // Puts stack rs back to original state
{
num = buffer.Pop();
rs.Push(num);
}
}
int main(int argc, char* argv[])
{
if (argc < 2)
{
cout << "Missing required argument for input file" << endl;
return 0;
}
ReversibleStack rs;
ifstream inFile;
int num;
inFile.open(argv[1], ifstream::in);
if (!inFile.is_open())
{
cout << "Could not open: " << argv[1] << endl;
return 0;
}
while (!inFile.eof())
{
string line;
getline(inFile, line);
// Process the command here
if (0 == line.compare(0, 6, "header"))
{
rs.Header();
}
else if (0 == line.compare(0, 4, "push"))
{
char *str = &line[5];
num = atoi(str);
rs.Push(num);
cout << num << " has been pushed.\n" << endl;
}
else if (0 == line.compare(0, 3, "pop"))
{
num = rs.Pop();
cout << num << " has been popped.\n" << endl;
}
else if (0 == line.compare(0, 7, "reverse"))
{
rs.Reverse();
}
else if (0 == line.compare(0, 7, "isempty"))
{
bool ans = rs.isEmpty();
if (ans)
{
cout << "Stack is empty.\n" << endl;
}
else
{
cout << "Stack is not empty.\n" << endl;
}
}
else if (0 == line.compare(0, 7, "display"))
{
Display(rs);
}
// You'll need to implement several other commands in here
else
{
cout << "Unknown command: " << line;
}
}
// Complete
inFile.close();
cout << endl << "Done" << endl;
cin >> num;
return 1;
}