ref: 1f6a604c23b0a5cad68c8692e990a76c250e17df
parent: 403584715f06a7bd72f8c350fa4100468f2e8bb4
author: spew <devnull@localhost>
date: Mon Apr 24 06:50:03 EDT 2017
libavl: fix documentation
--- a/sys/man/2/avl
+++ b/sys/man/2/avl
@@ -57,10 +57,13 @@
.I Avllookup
searches for a given key and returns
the closest node less than the given key,
-.BR nil ,
+equal to,
or the closest node greater than the key depending on whether
.I dir
-is less than, equal to, or greater than zero, respectively.
+is less than, equal to, or greater than zero, respectively. If
+.I dir
+is zero and there is no matching key, it returns
+.BR nil .
.I Avldelete
removes the node matching the key from the tree and returns
it. It returns nil if no matching key is found.