SPLAY_FIND
return SPLAY_FIND(splay_internal_endpoint, &la->linkSplayInternalEndpoint, &needle);
grp = SPLAY_FIND(splay_in, &la->linkSplayIn, &needle);
lnk = SPLAY_FIND(splay_out, &la->linkSplayOut, &needle);
} while (SPLAY_FIND(tree, &root, tmp) != NULL);