Fixed warning about using null with memcpy
Fixed warning about using null with memcpy

Just reformulated things a bit.

Change-Id: I11f7c8204a578f52bc7d096e582a36b86af84dd6

jmerkow/VTK,ashray/VTK-EVM,jmerkow/VTK,SimVascular/VTK,candy7393/VTK,johnkit/vtk-dev,msmolens/VTK,demarle/VTK,gram526/VTK,johnkit/vtk-dev,sumedhasingla/VTK,johnkit/vtk-dev,msmolens/VTK,demarle/VTK,SimVascular/VTK,mspark93/VTK,sumedhasingla/VTK,sankhesh/VTK,SimVascular/VTK,msmolens/VTK,keithroe/vtkoptix,ashray/VTK-EVM,keithroe/vtkoptix,jmerkow/VTK,msmolens/VTK,hendradarwin/VTK,SimVascular/VTK,hendradarwin/VTK,hendradarwin/VTK,ashray/VTK-EVM,demarle/VTK,johnkit/vtk-dev,mspark93/VTK,candy7393/VTK,candy7393/VTK,mspark93/VTK,johnkit/vtk-dev,gram526/VTK,ashray/VTK-EVM,SimVascular/VTK,mspark93/VTK,hendradarwin/VTK,SimVascular/VTK,jmerkow/VTK,demarle/VTK,demarle/VTK,candy7393/VTK,jmerkow/VTK,sumedhasingla/VTK,ashray/VTK-EVM,sankhesh/VTK,hendradarwin/VTK,keithroe/vtkoptix,demarle/VTK,candy7393/VTK,sumedhasingla/VTK,sankhesh/VTK,gram526/VTK,sumedhasingla/VTK,sankhesh/VTK,SimVascular/VTK,hendradarwin/VTK,jmerkow/VTK,johnkit/vtk-dev,candy7393/VTK,demarle/VTK,sumedhasingla/VTK,msmolens/VTK,mspark93/VTK,keithroe/vtkoptix,keithroe/vtkoptix,gram526/VTK,keithroe/vtkoptix,msmolens/VTK,demarle/VTK,hendradarwin/VTK,jmerkow/VTK,jmerkow/VTK,ashray/VTK-EVM,gram526/VTK,msmolens/VTK,keithroe/vtkoptix,candy7393/VTK,ashray/VTK-EVM,mspark93/VTK,mspark93/VTK,gram526/VTK,sumedhasingla/VTK,msmolens/VTK,johnkit/vtk-dev,mspark93/VTK,keithroe/vtkoptix,sankhesh/VTK,sankhesh/VTK,gram526/VTK,ashray/VTK-EVM,gram526/VTK,candy7393/VTK,SimVascular/VTK,sumedhasingla/VTK,sankhesh/VTK,sankhesh/VTK