tiny change in tree containers

alib2std/src/extensions/container/tree.hpp

@@ -816,7 +816,7 @@ public:
 	 * \return the assigned to instance
 	 */
 	tree & operator =( const tree & node ) {
-		return this->operator =( tree ( node ) );
+		return * this = tree ( node );
 	}
 	/**

alib2std/src/extensions/container/trie.hpp

@@ -284,7 +284,7 @@ public:
 	 * \return the assigned to instance
 	 */
 	trie & operator =( const trie & node ) {
-		return this->operator =( trie ( node ) );
+		return * this = trie ( node );
 	}
 	/**