SPLAY_EMPTY       131 include/tree.h   if (SPLAY_EMPTY(head))                                                      \
SPLAY_EMPTY       167 include/tree.h     if (SPLAY_EMPTY(head)) {                                                  \
SPLAY_EMPTY       192 include/tree.h   if (SPLAY_EMPTY(head))                                                      \
SPLAY_EMPTY       287 include/tree.h #define SPLAY_MIN(name, x)        (SPLAY_EMPTY(x) ? NULL                      \
SPLAY_EMPTY       289 include/tree.h #define SPLAY_MAX(name, x)        (SPLAY_EMPTY(x) ? NULL                      \