added access on tag_name and tag_value

src/nodes/znode.h

@@ -43,16 +43,16 @@ namespace znode
 
 
     // forward declaration of base class zbasic_node ...
-    //template<class str_t>
+    //template<typename str_t>
     //class zbasic_node;
 
     // ... used here for conveniance typedef
-    //template<class str_t>
+    //template<typename str_t>
     //using zshared_node = std::shared_ptr<zbasic_node<str_t>>;
 
 
     //! einfache tree-klasse, besonderheit: der nutzlast-string-type ist templated.
-    template<class str_t>
+    template<typename str_t>
     class zbasic_node : public zid, public zpayload<str_t>, public std::enable_shared_from_this<zbasic_node<str_t>>
     {
 
@@ -400,7 +400,7 @@ namespace znode
       virtual void begin()
       {}
 
-      template<class str_t>
+      template<typename str_t>
       void for_each_node( zbasic_node<str_t>* node );
 
       virtual void end()