TreeInfo *getTreeInfoFirstGroupEntry(TreeInfo *);
int numTreeInfoInGroup(TreeInfo *);
int posTreeInfo(TreeInfo *);
TreeInfo *getTreeInfoFromPos(TreeInfo *, int);
TreeInfo *getTreeInfoFirstGroupEntry(TreeInfo *);
int numTreeInfoInGroup(TreeInfo *);
int posTreeInfo(TreeInfo *);
TreeInfo *getTreeInfoFromPos(TreeInfo *, int);