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Re: Deprecate -traditional-cpp?
- From: Steve Kargl <sgk at troutmask dot apl dot washington dot edu>
- To: Janne Blomqvist <blomqvist dot janne at gmail dot com>
- Cc: Nathan Sidwell <nathan at acm dot org>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>, Fortran List <fortran at gcc dot gnu dot org>
- Date: Thu, 5 Sep 2019 07:03:25 -0700
- Subject: Re: Deprecate -traditional-cpp?
- References: <27f8f3cb-693c-0306-138b-dd5bd5ffd995@acm.org> <CAO9iq9EqW4Xq3wveXYrcNN3NKCR1CJyu57o6Y0GjOBAy=si-DQ@mail.gmail.com>
- Reply-to: sgk at troutmask dot apl dot washington dot edu
On Thu, Sep 05, 2019 at 02:16:08PM +0300, Janne Blomqvist wrote:
> On Thu, Sep 5, 2019 at 2:08 PM Nathan Sidwell <nathan@acm.org> wrote:
> >
> > Is it time to deprecate traditional preprocessing? It's been 30 years
> > since C89. Are (non-compiler) tools that use it still things?
> >
> > Handling it gets its hooks into a bunch of odd places in libcpp.
> >
> > To be specific: deprecate -traditional-cpp for GCC10, remove in GCC11.
>
> The Fortran frontend uses traditional mode, for reasons I can't recall
> at the moment.
>
Modern C allows single line comments to start with //
program hello
print *, "Hello " // "world!"
end progra
--
Steve