From 2890ed142e99087db341ec515b14b6d1a5c4db5a Mon Sep 17 00:00:00 2001
From: c9s <yoanlin93@gmail.com>
Date: Mon, 2 Jun 2014 16:24:32 +0800
Subject: [PATCH] document return code

---
 src/node.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/node.c b/src/node.c
index b64f0cc..1d809ed 100644
--- a/src/node.c
+++ b/src/node.c
@@ -166,6 +166,8 @@ int r3_tree_compile(node *n, char **errstr)
 /**
  * This function combines ['/foo', '/bar', '/{slug}'] into (/foo)|(/bar)|/([^/]+)}
  *
+ * Return -1 if error occurs
+ * Return 0 if success
  */
 int r3_tree_compile_patterns(node * n, char **errstr) {
     char * cpat;