void copyConstructorTester()
{
LinkedQueue<string> queue;
string items[] = {"zero", "one", "two", "three", "four", "five"};
for (int i = 0; i < 6; i++)
{
cout << "Adding " << items[i] << endl;
bool success = queue.enqueue(items[i]);
if (!success)
cout << "Failed to add " << items[i] << " to the queue." << endl;
}
cout << "Queue contains, from front to back, zero one two three four five." << endl;
LinkedQueue<string> copyOfQueue(queue);
cout << "Copy of queue contains, from front to back, ";
for (int i = 0; i < 6; i++)
{
cout << " " << copyOfQueue.peekFront();
copyOfQueue.dequeue();
}
cout << "." << endl;
cout << "Original queue contains, from front to back,";
for (int i = 0; i < 6; i++)
{
cout << " " << queue.peekFront();
queue.dequeue();
}
cout << "." << endl << endl;
} // end copyConstructorTester
int main()
{
ifstream inputFile;
string fileName; // Holds the user-inputted file name
string fileLine; // Holds the line extracted from the file
string expression; // Holds the expression to be tested
bool ableToOpen; // Flag to see if file exists
bool isBalanced; // Flag for balanced expression
cout << "Create queue object lq\n\n";
LinkedQueue<string> lq;
cout << "Get the fle input\n\n";
do
{ // Ask user for file name and attempt to open
cout << "Enter input file name: ";
cin >> fileName;
ableToOpen = openFileIn(inputFile, fileName);
if (!ableToOpen)
cout << fileName << " cannot be opened." << endl;
} while (!ableToOpen);
// Read lines from the file and put into queue object
getline(inputFile, fileLine);
while (inputFile)
{
lq.enqueue(fileLine);
getline(inputFile, fileLine);
} // end while
inputFile.close();
cout << "\n\n\nAfter getting the file input, test other functions*******\n";
cout << "Create lq1, a copy of the queue\n\n";
LinkedQueue<string> lq1(lq);
cout << "Display the contents of the copy queue lq1:\n";
cout << lq1 << endl;
cout << "\nAttempt to peek the now empty queue lq1:\n";
try
{
lq1.peekFront();
}
catch (PrecondViolatedExcep e)
{
cout << e.what();
}
cout << "\nAssign lq to lq1 and then display lq1:\n";
lq1 = lq;
cout << lq1;
cout << "\nPut the first string in lq into a stack of chars, ls1\n\n";
LinkedStack<char> ls1;
string firstLine = lq.peekFront();
for (unsigned int i = 0; i < firstLine.length(); i++)
{
ls1.push(firstLine[i]);
} // end for
cout << "Create a copy, ls2, of the stack and display the copy:\n";
LinkedStack<char> ls2(ls1);
cout << ls2;
cout << "\n\nAssign the first stack, ls1, to the second stack, ls2, and then display the second stack:\n";
ls2 = ls1;
cout << ls2;
cout << "\n\n\n\nDo the expression checking:\n\n\n";
while (!lq.isEmpty())
{
expression = lq.peekFront();
lq.dequeue();
cout << "The next string is:\t" << expression;
isBalanced = checkExpression(expression);
if (isBalanced)
cout << "\tis a correct expression\n\n\n";
else
cout << "\tis NOT a correct expression\n\n\n";
} // end while
// Program Over
cout << "Program Over\n\n";
cin.ignore();
cout << "Press Enter to end --> ";
cin.ignore();
cout << endl;
return 0;
} // end main