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SubjectRe: [RFC] UAPI: Check headers by compiling all together as C++

Le mercredi 05 septembre 2018 à 18:55 +0200, Greg KH a écrit :
> On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
> >
> > Here's a set of patches that inserts a step into the build process to make
> > sure that the UAPI headers can all be built together with C++ (if the
> > compiler being used supports C++). All but the final patch perform fixups,
> > including:
> Wait, why do we care? What has recently changed to start to directly
> import kernel uapi files into C++ code?
> And if userspace wants to do this, can't they do the C namespace trick
> themselves when they do the import? That must be how they are doing it
> today, right?

They can't.

Adding extern "C" { } doesn't magically make "class" a non keyword.
Even if it was the case, writing C++ code using whatever->class would
probably broke because class is a keyword in C++.

Yann Droneaud

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