[vtk-developers] compiler warnings, float vs double

David Cole david.cole at kitware.com
Wed Aug 1 13:16:27 EDT 2007


You are trying to eliminate warnings, so just change the constants to the
correct type to match the methods. That is a no-op as far as everybody else
is concerned.

If you change the signatures of methods unnecessarily, others may have to
change their client code to keep pace. (For some clients and some methods
this may be a *huge* amount of work.) If there were a "*better*" reason to
change the signature, I'd say open it up for discussion, but not just to
eliminate warnings.

Change the constants unless some other people speak up and disagree with
me....

:-)
David Cole


On 8/1/07, Sean McBride <sean at rogue-research.com> wrote:
>
> Hi all,
>
> I'd like to fix a few compiler warnings related to implicit 64 to 32 bit
> conversion.  For example in vtkRenderWindow.h:
>
>   vtkSetClampMacro(AnaglyphColorSaturation,float, 0.0, 1.0);
>   vtkGetMacro(AnaglyphColorSaturation,float);
>
> the variable is float but the constants are double.
>
> I could: 1) change the float to double 2) change the consts to 0.0f,
> 1.0f.  I seem to remember that in VTK 5 there was a big float->double
> change.  So is solution 1 preferred?
>
> Thanks,
>
> --
> ____________________________________________________________
> Sean McBride, B. Eng                 sean at rogue-research.com
> Rogue Research                        www.rogue-research.com
> Mac Software Developer              Montréal, Québec, Canada
>
>
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