diff --git a/TinySTL/Stack.h b/TinySTL/Stack.h
index d77a8b2..ea486a5 100644
--- a/TinySTL/Stack.h
+++ b/TinySTL/Stack.h
@@ -29,14 +29,14 @@ namespace TinySTL{
 		friend bool operator== (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
 		template <class T, class Container>
 		friend bool operator!= (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
-		template <class T, class Container>
-		friend bool operator<  (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
-		template <class T, class Container>
-		friend bool operator<= (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
-		template <class T, class Container>
-		friend bool operator>  (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
-		template <class T, class Container>
-		friend bool operator>= (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
+		//template <class T, class Container>
+		//friend bool operator<  (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
+		//template <class T, class Container>
+		//friend bool operator<= (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
+		//template <class T, class Container>
+		//friend bool operator>  (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
+		//template <class T, class Container>
+		//friend bool operator>= (const stack<T, Container>& lhs, const stack<T, Container>& rhs);
 		template <class T, class Container>
 		friend void swap(stack<T, Container>& x, stack<T, Container>& y);
 	};
@@ -49,24 +49,24 @@ namespace TinySTL{
 		return lhs.container_ != rhs.container_;
 	}
 	template <class T, class Container>
-	bool operator<  (const stack<T, Container>& lhs, const stack<T, Container>& rhs){
-		return lhs.container_ < rhs.container_;
-	}
-	template <class T, class Container>
-	bool operator<= (const stack<T, Container>& lhs, const stack<T, Container>& rhs){
-		return lhs.container_ <= rhs.container_;
-	}
-	template <class T, class Container>
-	bool operator>(const stack<T, Container>& lhs, const stack<T, Container>& rhs){
-		return lhs.container_ > rhs.container_;
-	}
-	template <class T, class Container>
-	bool operator>= (const stack<T, Container>& lhs, const stack<T, Container>& rhs){
-		return lhs.container_ >= rhs.container_;
-	}
-	template <class T, class Container>
 	void swap(stack<T, Container>& x, stack<T, Container>& y){
 		x.swap(y);
 	}
+	//template <class T, class Container>
+	//bool operator<  (const stack<T, Container>& lhs, const stack<T, Container>& rhs){
+	//	return lhs.container_ < rhs.container_;
+	//}
+	//template <class T, class Container>
+	//bool operator<= (const stack<T, Container>& lhs, const stack<T, Container>& rhs){
+	//	return lhs.container_ <= rhs.container_;
+	//}
+	//template <class T, class Container>
+	//bool operator>(const stack<T, Container>& lhs, const stack<T, Container>& rhs){
+	//	return lhs.container_ > rhs.container_;
+	//}
+	//template <class T, class Container>
+	//bool operator>= (const stack<T, Container>& lhs, const stack<T, Container>& rhs){
+	//	return lhs.container_ >= rhs.container_;
+	//}
 }
 #endif
\ No newline at end of file