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Message-ID: <20170417172918.GL2082@port70.net>
Date: Mon, 17 Apr 2017 19:29:19 +0200
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: superfluous space char in marco
* Rich Felker <dalias@...c.org> [2017-04-17 13:02:08 -0400]:
> On Mon, Apr 17, 2017 at 06:28:58PM +0300, Alexander Monakov wrote:
> > On Mon, 17 Apr 2017, Rich Felker wrote:
> > > This is odd and looks like a gcc bug. Preprocessor macros definitions
> > > are sequences of PP tokens, not literal code strings, meaning that
> > > whitespace is irrelevant as long as the resulting sequence of PP
> > > tokens remains the same; it's a matching definition not a
> > > redefinition.
> >
> > No, according to C11 6.10.3 p1 presence of whitespace is significant (its
> > contents are not), and 6.10.3.5 example 6 corroborates that. GCC, Clang,
> > ICC and MSVC on Godbolt all agree with that.
>
> Thanks for clarifying! I had forgotten this detail. It probably makes
> sense to change it, then.
linux uapi header has whitespace befor IFF_MASTER
if we match the definition with something i think
it should be the linux header not iproute2
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