@@@ man tweak

diff --git a/xyla.3 b/xyla.3
index ace68e563bcdb32e75b826d656140644363689c5..47b46cca438369caa813470e9fd57d6a6ced158b 100644 (file)
--- a/xyla.3
+++ b/xyla.3
@@ -2451,6 +2451,11 @@ while the checking proceeds;
 the
 .I arg
 will be passed to these operations as the `user state' pointer.
 the
 .I arg
 will be passed to these operations as the `user state' pointer.

+Note that checking will
+.I mutate
+the tree!
+It is not safe to check a tree
+while it is being accessed by another thread.

 See the section
 .B "CHECKING FRAMEWORK"
 below for full details.
 See the section
 .B "CHECKING FRAMEWORK"
 below for full details.


@@ -2464,7 +2469,6 @@ or some other nonzero value if checking was aborted.
 .\"--------------------------------------------------------------------------
 .SH "TREE IDIOSYNCRASIES"
 .
 .\"--------------------------------------------------------------------------
 .SH "TREE IDIOSYNCRASIES"
 .

-.

 .SS "AVL trees"
 An
 .I Adelson-Velsky\(en\&Landis
 .SS "AVL trees"
 An
 .I Adelson-Velsky\(en\&Landis