void pushTreeInfo(TreeInfo **, TreeInfo *);
int numTreeInfo(TreeInfo *);
boolean validLevelSeries(TreeInfo *);
-TreeInfo *getFirstValidLevelSeries(TreeInfo *);
+TreeInfo *getFirstValidTreeInfoEntry(TreeInfo *);
TreeInfo *getTreeInfoFirstGroupEntry(TreeInfo *);
int numTreeInfoInGroup(TreeInfo *);
int posTreeInfo(TreeInfo *);