From 13be61812a101d2278234044cf72a4bc5fd27440 Mon Sep 17 00:00:00 2001
From: scrawl <scrawl@baseoftrash.de>
Date: Sun, 31 Mar 2013 10:16:02 +0200
Subject: [PATCH] Made the "Unknown class key" exception slightly more helpful

---
 apps/openmw/mwworld/class.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/apps/openmw/mwworld/class.cpp b/apps/openmw/mwworld/class.cpp
index 876328641..1eb2f35bd 100644
--- a/apps/openmw/mwworld/class.cpp
+++ b/apps/openmw/mwworld/class.cpp
@@ -184,10 +184,13 @@ namespace MWWorld
 
     const Class& Class::get (const std::string& key)
     {
+        if (key.empty())
+            throw std::logic_error ("Class::get(): attempting to get an empty key");
+
         std::map<std::string, boost::shared_ptr<Class> >::const_iterator iter = sClasses.find (key);
 
         if (iter==sClasses.end())
-            throw std::logic_error ("unknown class key: " + key);
+            throw std::logic_error ("Class::get(): unknown class key: " + key);
 
         return *iter->second;
     }