diff --git a/common/queue.h b/common/queue.h
index be6df0148ac..cfe7f4e5966 100644
--- a/common/queue.h
+++ b/common/queue.h
@@ -35,18 +35,13 @@ namespace Common {
  */
 template<class T>
 class Queue {
-public:
-	typedef T value_type;
+//public:
+//	typedef T value_type;
 
 public:
 	Queue<T>() : _impl() {}
 	Queue<T>(const Queue<T> &queue) : _impl(queue._impl) {}
 
-	Queue<T> &operator=(const Queue<T> &queue) {
-		_impl = queue._impl;
-		return *this;
-	}
-
 	bool empty() const {
 		return _impl.empty();
 	}
diff --git a/common/rect.h b/common/rect.h
index a0ccd07f903..18cc4e56c37 100644
--- a/common/rect.h
+++ b/common/rect.h
@@ -40,9 +40,7 @@ struct Point {
 	int16 y;	//!< The vertical part of the point
 
 	Point() : x(0), y(0) {}
-	Point(const Point &p) : x(p.x), y(p.y) {}
-	explicit Point(int16 x1, int16 y1) : x(x1), y(y1) {}
-	Point & operator=(const Point & p) { x = p.x; y = p.y; return *this; };
+	Point(int16 x1, int16 y1) : x(x1), y(y1) {}
 	bool operator==(const Point & p) const { return x == p.x && y == p.y; };
 	bool operator!=(const Point & p) const { return x != p.x || y != p.y; };
 
diff --git a/common/stack.h b/common/stack.h
index e20e81028df..be6f1b8d10a 100644
--- a/common/stack.h
+++ b/common/stack.h
@@ -83,16 +83,13 @@ public:
  */
 template<class T>
 class Stack {
-protected:
+private:
 	Array<T>	_stack;
+
 public:
 	Stack<T>() {}
 	Stack<T>(const Array<T> &stackContent) : _stack(stackContent) {}
 	
-	Stack<T>& operator=(const Stack<T> &st) {
-		_stack = st._stack;
-		return *this;
-	}
 	bool empty() const {
 		return _stack.empty();
 	}