warning: NULL used in arithmetic

diff --git a/packages/vtk/src/bbvtkPolyDataWriterPlus.cxx b/packages/vtk/src/bbvtkPolyDataWriterPlus.cxx
index 969254d528e986ff84c83822170cc7233d890231..2cc637e5c7aa494a0b251feedad3e4dd7a3a664b 100755 (executable)
--- a/packages/vtk/src/bbvtkPolyDataWriterPlus.cxx
+++ b/packages/vtk/src/bbvtkPolyDataWriterPlus.cxx
@@ -12,7 +12,7 @@ void PolyDataWriterPlus::Process()
 
        if (!HasObserver(OBS_PRE_WRITER_1) && bbGetInputInPrePersistObs1() != NULL)
                AddObserver(OBS_PRE_WRITER_1, bbGetInputInPrePersistObs1());
-
+ // warning: NULL used in arithmetic // JPR
        if (!HasObserver(OBS_POST_WRITER_1) == NULL && bbGetInputInPostPersistObs1() != NULL)
                AddObserver(OBS_POST_WRITER_1, bbGetInputInPostPersistObs1());