[Rd] R Include File Guards

Paul Roebuck roebuck at odin.mdacc.tmc.edu
Wed Jun 15 23:16:52 CEST 2005


On Wed, 18 May 2005, Peter Dalgaard wrote:

> Paul Roebuck <roebuck at odin.mdacc.tmc.edu> writes:
>
> > R 2.1.0/src/include from 2005/04/18 download
> >
> > Naming inconsistent for guards as well but that's pedantic.
> > Simple convention:
> >   file <foo.h>
> >     #ifndef R_FOO_H
> >   file <R_ext/bar.h>
> >     #ifndef R_EXT_BAR_H
> >
> > Missing guards:
> > <IOStuff.h>
> > <Internal.h>
> > <Parse.h>
> > <R_ext/GraphicsBase.h>
> > <R_ext/GraphicsDevice.h>
> > <R_ext/GraphicsEngine.h>
> > <R_ext/R-ftp-http.h>
> > <R_ext/libextern.h>
> >
> >
> > Illegal Guards (leading underscore):
> > <Rinternals.h>
> > <R_ext/Error.h>
> > <config.h.in>
>
> Thanks. The ones outside R_ext, except Rinternals.h, are not part of the
> API, so it is not a bug that there are no guards - could still be a
> good idea to have them of course. libextern.h explicitly says that you
> shouldn't disallow including it more than once. So the ones with real
> problems would be
>
> <R_ext/GraphicsBase.h>
> <R_ext/GraphicsDevice.h>
> <R_ext/GraphicsEngine.h>
> <R_ext/R-ftp-http.h>
>
> <Rinternals.h>
> <R_ext/Error.h>
>
> What's illegal about leading underscores, BTW?
>

I downloaded the R-patched for 2005/06/14 and noticed that
the guards were never fixed. Should a bug report have been
opened instead of simply noting them here?

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