* is none. */\r
treeNode TaggedDesc(treeNode x, TagType tag);\r
\r
+ /** TaggedNext(x,tag): returns the first node tagged tag with larger \r
+ * preorder than x. Returns NULT if there is none. */\r
+ treeNode TaggedNext(treeNode x, TagType tag);\r
+\r
/** TaggedPrec(x,tag): returns the first node tagged tag with smaller \r
* preorder than x and not an ancestor of x. Returns NULLT if there \r
* is none. */\r