From ffc41c1faabf1d209726eb701b6070169a58e8e1 Mon Sep 17 00:00:00 2001
From: Roland Illig <roland.illig@gmx.de>
Date: Tue, 15 Feb 2005 22:16:18 +0000
Subject: [PATCH] 	* treestore.c (str_common): Added a comment that
 str_common shall 	not be called with two equal strings.

---
 src/treestore.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/treestore.c b/src/treestore.c
index f66eee8f0..0c95e260b 100644
--- a/src/treestore.c
+++ b/src/treestore.c
@@ -58,7 +58,8 @@ tree_store_dirty(int state)
     ts.dirty = state;
 }
 
-/* Returns number of common characters */
+/* Returns number of common characters; s1[] and s2[] must differ in
+ * at least one character, or the behaviour will be undefined. */
 static int
 str_common(const char *s1, const char *s2)
 {