From 35d9aa784c393aab7ad9e314605bb58772e0b1e3 Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <dimitri@stack.nl>
Date: Wed, 20 Aug 2014 12:17:10 +0200
Subject: Bug 735037 - QGDict::hashAsciiKey: Invalid null key

---
 src/pre.l | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/pre.l b/src/pre.l
index f06cc98..c3eeb2a 100644
--- a/src/pre.l
+++ b/src/pre.l
@@ -3025,8 +3025,15 @@ void preprocessFile(const char *fileName,BufStr &input,BufStr &output)
 	// gather the formal arguments in a dictionary 
 	while (i<i_cbrace && (p=reId.match(ds,i,&l)))
 	{
-	  argDict.insert(ds.mid(p,l),new int(count++));
-	  i=p+l;
+          if (l>0) // see bug375037
+          {
+	    argDict.insert(ds.mid(p,l),new int(count++));
+	    i=p+l;
+          }
+          else
+          {
+            i++;
+          }
 	}
 	// strip definition part
 	QCString tmp=ds.right(ds.length()-i_equals-1);
-- 
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