[vtk-developers] unused yyinput() warning

[David Gobbi]

Yeah, the yyinput() function is only present in lex-generated source
files.  The VRMLImporter must have been generated by lex a long,
long time ago (more than 10 years ago) -- VTK does not seem to
include the original ".l" file that it must have been generated from.
If it doesn't use the yyinput() function, it should be safe to remove
the whole input()/yyinput() definition from the code.

 - David


On Thu, Sep 1, 2011 at 4:02 PM, Sean McBride <sean at rogue-research.com> wrote:
> Hi all,
>
> clang warns:
>
> VTK/Hybrid/vtkVRMLImporter.cxx:5105:12: warning: function 'yyinput' is not needed and will not be emitted
>      [-Wunneeded-internal-declaration]
> static int yyinput()
>           ^
>
> I grepped all of VTK for 'yyinput' and was surprised to find it in 3 files.  Their implementations are similar.
>
> These files kinda look like they were auto-created by some tool.  Anyone know what this yy stuff is, and if I can safely remove parts that are indeed unused?
>
> Cheers,
>
> --
> ____________________________________________________________
> Sean McBride, B. Eng                 sean at rogue-research.com
> Rogue Research                        www.rogue-research.com
> Mac Software Developer              Montréal, Québec, Canada