PERF: removed a hard-coded array length in a null pointer check, and replaced      it with the appropriate variable length. This was not a bug, but it could      have become one if the number of derived columns were to change and the      hard coded value were not to be changed.
PERF: removed a hard-coded array length in a null pointer check, and replaced
     it with the appropriate variable length. This was not a bug, but it could
     have become one if the number of derived columns were to change and the
     hard coded value were not to be changed.

Wuteyan/VTK,collects/VTK,arnaudgelas/VTK,SimVascular/VTK,candy7393/VTK,spthaolt/VTK,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,collects/VTK,arnaudgelas/VTK,jeffbaumes/jeffbaumes-vtk,SimVascular/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,gram526/VTK,sumedhasingla/VTK,berendkleinhaneveld/VTK,Wuteyan/VTK,collects/VTK,cjh1/VTK,jeffbaumes/jeffbaumes-vtk,johnkit/vtk-dev,aashish24/VTK-old,sumedhasingla/VTK,aashish24/VTK-old,aashish24/VTK-old,msmolens/VTK,cjh1/VTK,SimVascular/VTK,sumedhasingla/VTK,demarle/VTK,SimVascular/VTK,jeffbaumes/jeffbaumes-vtk,biddisco/VTK,candy7393/VTK,keithroe/vtkoptix,arnaudgelas/VTK,hendradarwin/VTK,keithroe/vtkoptix,naucoin/VTKSlicerWidgets,jmerkow/VTK,gram526/VTK,arnaudgelas/VTK,daviddoria/PointGraphsPhase1,berendkleinhaneveld/VTK,sankhesh/VTK,demarle/VTK,gram526/VTK,jeffbaumes/jeffbaumes-vtk,biddisco/VTK,spthaolt/VTK,daviddoria/PointGraphsPhase1,daviddoria/PointGraphsPhase1,daviddoria/PointGraphsPhase1,ashray/VTK-EVM,hendradarwin/VTK,spthaolt/VTK,msmolens/VTK,jmerkow/VTK,collects/VTK,SimVascular/VTK,demarle/VTK,msmolens/VTK,keithroe/vtkoptix,sumedhasingla/VTK,mspark93/VTK,collects/VTK,sankhesh/VTK,Wuteyan/VTK,mspark93/VTK,spthaolt/VTK,berendkleinhaneveld/VTK,demarle/VTK,candy7393/VTK,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,spthaolt/VTK,johnkit/vtk-dev,candy7393/VTK,jeffbaumes/jeffbaumes-vtk,berendkleinhaneveld/VTK,hendradarwin/VTK,mspark93/VTK,msmolens/VTK,ashray/VTK-EVM,johnkit/vtk-dev,Wuteyan/VTK,berendkleinhaneveld/VTK,gram526/VTK,berendkleinhaneveld/VTK,mspark93/VTK,aashish24/VTK-old,msmolens/VTK,jmerkow/VTK,hendradarwin/VTK,cjh1/VTK,sankhesh/VTK,sumedhasingla/VTK,keithroe/vtkoptix,candy7393/VTK,jmerkow/VTK,mspark93/VTK,sankhesh/VTK,candy7393/VTK,sankhesh/VTK,demarle/VTK,biddisco/VTK,mspark93/VTK,biddisco/VTK,msmolens/VTK,Wuteyan/VTK,sankhesh/VTK,candy7393/VTK,SimVascular/VTK,sankhesh/VTK,cjh1/VTK,mspark93/VTK,demarle/VTK,aashish24/VTK-old,johnkit/vtk-dev,Wuteyan/VTK,ashray/VTK-EVM,jmerkow/VTK,gram526/VTK,candy7393/VTK,gram526/VTK,hendradarwin/VTK,sankhesh/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,gram526/VTK,demarle/VTK,keithroe/vtkoptix,biddisco/VTK,demarle/VTK,biddisco/VTK,sumedhasingla/VTK,SimVascular/VTK,naucoin/VTKSlicerWidgets,ashray/VTK-EVM,SimVascular/VTK,msmolens/VTK,sumedhasingla/VTK,mspark93/VTK,spthaolt/VTK,keithroe/vtkoptix,keithroe/vtkoptix,collects/VTK,jeffbaumes/jeffbaumes-vtk,arnaudgelas/VTK,msmolens/VTK,naucoin/VTKSlicerWidgets,keithroe/vtkoptix,johnkit/vtk-dev,aashish24/VTK-old,biddisco/VTK,hendradarwin/VTK,jmerkow/VTK,jmerkow/VTK,naucoin/VTKSlicerWidgets,johnkit/vtk-dev,ashray/VTK-EVM,johnkit/vtk-dev,daviddoria/PointGraphsPhase1,arnaudgelas/VTK,Wuteyan/VTK,sumedhasingla/VTK,ashray/VTK-EVM,gram526/VTK,hendradarwin/VTK,cjh1/VTK,cjh1/VTK