Clean up old and new files

plates/circlesinglelist/circlesinglelist.cpp

@@ -185,12 +185,13 @@ bool CircleSingleList::isEmpty() const
  *
  * @return int The value held at the Node at the head of our linked list
  */
-void CircleSingleList::peek() const
+int CircleSingleList::peek() const
 {
   // If there is only one data member, a circular list node will point to itself
   if (!isEmpty())
     std::cout << "[" << tail->next->data << "] is at the top of our list\n";
   else std::cout << "Nothing to peek, our list is empty...\n";
+  return tail->next->data;
 }
 
 /** print

plates/circlesinglelist/circlesinglelist.h

@@ -13,7 +13,7 @@
 
 #include <iostream>
 
-class CircleSingleList{
+class CircleSingleList {
   public:
     CircleSingleList() : tail(NULL) {};
     CircleSingleList(const CircleSingleList& rhs);
@@ -25,7 +25,7 @@ class CircleSingleList{
     bool replace(int val, int key);
     void makeEmpty();
     bool isEmpty() const;
-    void peek() const;
+    int peek() const;
     void print() const;
     bool find(int val) const;