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Re: [PCH] driver, documentation
- From: Geoff Keating <geoffk at geoffk dot org>
- To: dpatel at apple dot com
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 19 Aug 2002 14:17:59 -0700
- Subject: Re: [PCH] driver, documentation
- References: <036D947E-B3B1-11D6-B1AB-00039310EDEA@>
- Reply-to: Geoff Keating <geoffk at redhat dot com>
> X-Sieve: cmu-sieve 2.0
> Date: Mon, 19 Aug 2002 13:19:50 -0700
> Cc: gcc-patches@gcc.gnu.org
> From: Devang Patel <dpatel@apple.com>
>
>
> On Saturday, August 17, 2002, at 08:32 PM, Geoffrey Keating wrote:
>
> > +@item
> > +Any macros defined before the precompiled header (including with
> > +@option{-D}) must either be defined in the same way as when the
> > +precompiled header was generated, or must not affect the precompiled
> > +header, which usually means that the they don't appear in the
> > +precompiled header at all.
>
> May be it is implicitly said, but how about #undef's ?
>
> Do we want to allow #undef before #include, for macros which are
> defined and/or used in precompiled header ?
It's implicit. I guess I could say "Any macros defined (or not
defined)" if that'll make things clearer, any opinions?
--
- Geoffrey Keating <geoffk@geoffk.org> <geoffk@redhat.com>