1 files changed, 2 insertions, 5 deletions
diff --git a/common/stack.h b/common/stack.h
index e20e81028d..be6f1b8d10 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();
 	}