Index: trunk/psLib/src/sys/psString.c
===================================================================
--- trunk/psLib/src/sys/psString.c	(revision 6201)
+++ trunk/psLib/src/sys/psString.c	(revision 6218)
@@ -13,6 +13,6 @@
  *  @author David Robbins, MHPCC
  *
- *  @version $Revision: 1.22 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-01-26 05:31:54 $
+ *  @version $Revision: 1.23 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2006-01-27 01:49:05 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -25,4 +25,5 @@
 #include "psMemory.h"
 #include "psError.h"
+#include "psConstants.h"
 
 #include "psErrorText.h"
@@ -168,4 +169,7 @@
                       const char *splitters)
 {
+    PS_ASSERT_PTR_NON_NULL(string, NULL);
+    PS_ASSERT_PTR_NON_NULL(splitters, NULL);
+
     psList *values = psListAlloc(NULL); // The list of values to return
     unsigned int length = strlen(string); // The length of the string