From 4f41b9d3ac25eeb924de43396b522e33807ef59b Mon Sep 17 00:00:00 2001
From: James Chen <jianhua.chen@cocos2d-x.org>
Date: Mon, 28 Apr 2014 14:53:30 +0800
Subject: [PATCH] fullPathForFilename optimization: Checking whether the path
 is an empty string.

---
 cocos/2d/platform/CCFileUtils.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cocos/2d/platform/CCFileUtils.cpp b/cocos/2d/platform/CCFileUtils.cpp
index c356a20af9..a19a88f0dc 100644
--- a/cocos/2d/platform/CCFileUtils.cpp
+++ b/cocos/2d/platform/CCFileUtils.cpp
@@ -680,6 +680,11 @@ std::string FileUtils::getPathForFilename(const std::string& filename, const std
 
 std::string FileUtils::fullPathForFilename(const std::string &filename)
 {
+    if (filename.empty())
+    {
+        return "";
+    }
+    
     if (isAbsolutePath(filename))
     {
         return filename;