From 266ab6392420568c983ee8ba70362d74c2388836 Mon Sep 17 00:00:00 2001
From: Joseph Wang <joequant@gmail.com>
Date: Sun, 18 Mar 2012 04:05:19 +0000
Subject: [PATCH] check for null pointer in inString to prevent segfaults

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12929 626c5289-ae23-0410-ae9c-e8d60b6d4f22
---
 Source/DOH/base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/DOH/base.c b/Source/DOH/base.c
index cfbd2bdc4..7d20bf626 100644
--- a/Source/DOH/base.c
+++ b/Source/DOH/base.c
@@ -784,7 +784,7 @@ int DohIsString(const DOH *obj) {
   if (!DohCheck(b))
     return 0;
   objinfo = b->type;
-  if (objinfo->doh_string)
+  if (objinfo && objinfo->doh_string)
     return 1;
   else
     return 0;