From a60b8de413b6ed4b7609fffa9c19154c7914b2c3 Mon Sep 17 00:00:00 2001
From: tradke <tradke@b32723a9-ab3a-4a60-88e2-2e5d99d7c17a>
Date: Fri, 1 Jun 2007 10:51:08 +0000
Subject: check for a valid cctkGH pointer passed into
 IOUtil_RecoverVarsFromDatafiles()

git-svn-id: http://svn.cactuscode.org/arrangements/CactusBase/IOUtil/trunk@253 b32723a9-ab3a-4a60-88e2-2e5d99d7c17a
---
 src/CheckpointRecovery.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/CheckpointRecovery.c b/src/CheckpointRecovery.c
index 93bad2a..f9aee40 100644
--- a/src/CheckpointRecovery.c
+++ b/src/CheckpointRecovery.c
@@ -413,6 +413,11 @@ int IOUtil_RecoverVarsFromDatafiles (cGH *GH,
 
 
   myGH = CCTK_GHExtension (GH, "IO");
+  if (myGH == NULL)
+  {
+    CCTK_WARN (0, "invalid cctkGH pointer passed into "
+               "IOUtil_RecoverVarsFromDatafiles()");
+  }
 
   if (CCTK_NumVars () > 0)
   {
-- 
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