Index: trunk/psLib/src/math/psStats.c
===================================================================
--- trunk/psLib/src/math/psStats.c	(revision 7870)
+++ trunk/psLib/src/math/psStats.c	(revision 7914)
@@ -16,6 +16,6 @@
  * use ->min and ->max (PS_STAT_USE_RANGE)
  *
- *  @version $Revision: 1.177 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-07-12 03:46:11 $
+ *  @version $Revision: 1.178 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2006-07-15 02:57:12 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -1680,4 +1680,7 @@
 bool psMemCheckStats(psPtr ptr)
 {
+    if (!is_psType(ptr)) {
+        return false;
+    }
     return ( psMemGetDeallocator(ptr) == (psFreeFunc)statsFree );
 }
@@ -1788,4 +1791,7 @@
 bool psMemCheckHistogram(psPtr ptr)
 {
+    if (!is_psType(ptr)) {
+        return false;
+    }
     return ( psMemGetDeallocator(ptr) == (psFreeFunc)histogramFree );
 }