From bb08020d1d5f3a1d0d4c6098646b6f4e652bf92e Mon Sep 17 00:00:00 2001
From: Blake Thompson <flippmoke@gmail.com>
Date: Tue, 10 Mar 2015 10:05:50 -0500
Subject: [PATCH] Updated image reader so that it would throw an exception
 rather then returning a 0 pointer.

---
 src/image_reader.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/image_reader.cpp b/src/image_reader.cpp
index df876ff8f..e3e708b31 100644
--- a/src/image_reader.cpp
+++ b/src/image_reader.cpp
@@ -84,7 +84,10 @@ image_reader* get_image_reader(std::string const& filename)
     {
         return factory<image_reader,std::string,std::string const&>::instance().create_object(*type,filename);
     }
-    return 0;
+    else
+    {
+        throw image_reader_exception("image_reader: can't determine type from input data");
+    }
 }
 
 }