NULL_RIGHT_CHILD  501 src/intervals.c   if (NULL_RIGHT_CHILD (interval))
NULL_RIGHT_CHILD  630 src/intervals.c       else if (! NULL_RIGHT_CHILD (tree)
NULL_RIGHT_CHILD  663 src/intervals.c   if (! NULL_RIGHT_CHILD (i))
NULL_RIGHT_CHILD  703 src/intervals.c       while (! NULL_RIGHT_CHILD (i))
NULL_RIGHT_CHILD 1388 src/intervals.c   if (! NULL_RIGHT_CHILD (i))      /* It's below us.  Add absorb
NULL_RIGHT_CHILD 1448 src/intervals.c       while (! NULL_RIGHT_CHILD (predecessor))
NULL_RIGHT_CHILD 1502 src/intervals.c   if (! NULL_RIGHT_CHILD (source))