Index: /trunk/psLib/src/dataManip/psMinimize.c
===================================================================
--- /trunk/psLib/src/dataManip/psMinimize.c	(revision 3577)
+++ /trunk/psLib/src/dataManip/psMinimize.c	(revision 3578)
@@ -9,6 +9,6 @@
  *  @author GLG, MHPCC
  *
- *  @version $Revision: 1.109 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2005-03-29 22:34:59 $
+ *  @version $Revision: 1.110 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2005-03-31 01:02:15 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -257,5 +257,7 @@
     PS_VECTOR_CHECK_NULL(y, NULL);
     PS_VECTOR_CHECK_TYPE_F32_OR_F64(y, NULL);
-    PS_VECTOR_CHECK_TYPE(mySpline->knots, PS_TYPE_F32, NULL);
+    if (mySpline != NULL) {
+        PS_VECTOR_CHECK_TYPE(mySpline->knots, PS_TYPE_F32, NULL);
+    }
 
     psTrace(".psLib.dataManip.psVectorFitSpline1D", 4,
Index: /trunk/psLib/src/math/psMinimize.c
===================================================================
--- /trunk/psLib/src/math/psMinimize.c	(revision 3577)
+++ /trunk/psLib/src/math/psMinimize.c	(revision 3578)
@@ -9,6 +9,6 @@
  *  @author GLG, MHPCC
  *
- *  @version $Revision: 1.109 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2005-03-29 22:34:59 $
+ *  @version $Revision: 1.110 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2005-03-31 01:02:15 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -257,5 +257,7 @@
     PS_VECTOR_CHECK_NULL(y, NULL);
     PS_VECTOR_CHECK_TYPE_F32_OR_F64(y, NULL);
-    PS_VECTOR_CHECK_TYPE(mySpline->knots, PS_TYPE_F32, NULL);
+    if (mySpline != NULL) {
+        PS_VECTOR_CHECK_TYPE(mySpline->knots, PS_TYPE_F32, NULL);
+    }
 
     psTrace(".psLib.dataManip.psVectorFitSpline1D", 4,