"Completed" PA05

(aka don't want to spend anymore time on it)
+- ArrayDataEngine.c
+- IteratorUtility.c
+- QueueUtility.c
+- StackUtility.c

PA05-1004/QueueUtility.c

@@ -64,8 +64,9 @@ Dependencies: getItemAtIndex, getListSize
 */
 bool peekFront( StateDataType *returnVal, const QueueType queue )
 {
-    // return false (TEMP)
-    return false;
+    // use getListSize to get the 'front' value
+    // use getItemAtIndex to 'see' the value at the front.
+    return getItemAtIndex(returnVal, queue, getListSize(queue));
 }
 
 /*
@@ -82,8 +83,9 @@ Dependencies: removeItemAtIndex, getListSize
 */
 bool dequeue( StateDataType *returnVal, QueueType *queue )
 {
-    // return false (TEMP)
-    return false;
+    // get the "front" of the queue
+    // remove the value in the queue and return success/failure
+    return removeItemAtIndex(queue, returnVal, getListSize(*queue));
 }
 
 /*
@@ -99,6 +101,6 @@ Dependencies: insertItemAtIndex
 */
 bool enqueue( QueueType *queue, const StateDataType toBePushed )
 {
-    // return false (TEMP)
-    return false;
+    // return function success/failure based on inputs
+    return insertItemAtIndex(queue, toBePushed, 0);
 }