From: Andreas Schwab <schwab@linux-m68k.org>
To: Simon Marchi <simon.marchi@polymtl.ca>
Cc: "Павел Крюков" <kryukov@frtk.ru>, gdb-patches@sourceware.org
Subject: Re: [PATCH] Do not expand macros to 'defined'
Date: Wed, 16 Jan 2019 20:49:00 -0000 [thread overview]
Message-ID: <87h8e89vmk.fsf@igel.home> (raw)
In-Reply-To: <4943ce6216667607c40b630ecba6a4d1@polymtl.ca> (Simon Marchi's message of "Wed, 16 Jan 2019 15:02:23 -0500")
On Jan 16 2019, Simon Marchi <simon.marchi@polymtl.ca> wrote:
> The patch LGTM, I agree these macros are not really needed. But I am
> confused, does this actually fix your c++ build? You mentioned you were
> using g++ (and therefore cpp), which supposedly can handle this fine:
>
> https://gcc.gnu.org/onlinedocs/cpp/Defined.html
>
> If so, what did the error look like?
This has nothing to do with C vs. C++, both have the same wording:
If the token defined is generated as a result of this replacement
process or use of the defined unary operator does not match one of
the two specified forms prior to macro replacement, the behavior is
undefined.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
next prev parent reply other threads:[~2019-01-16 20:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 6:34 Павел Крюков
2019-01-16 20:02 ` Simon Marchi
2019-01-16 20:38 ` Pavel Kryukov
2019-01-16 21:11 ` Simon Marchi
2019-01-16 20:49 ` Andreas Schwab [this message]
2019-01-16 20:59 ` Simon Marchi
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