From c94a53eefb4159d238cb5714b6732e145aaeb582 Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Mon, 24 Dec 2018 20:46:25 +0100
Subject: [PATCH] Prevent possible 'QGDict::hashAsciiKey: Invalid null key'
 warning

---
 src/defargs.l | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/defargs.l b/src/defargs.l
index c1a3b09e1ff..7e9ccca926e 100644
--- a/src/defargs.l
+++ b/src/defargs.l
@@ -133,7 +133,7 @@ static bool nameIsActuallyPartOfType(QCString &name)
     keywords.insert("volatile", DUMMY_ADDR); // foo(... volatile)
     first=FALSE;
   }
-  return keywords.find(name)!=0;
+  return name.length()>0 && keywords.find(name)!=0;
 }
 %}