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Date: Sun, 4 May 2014 18:02:36 -0700
From: Khem Raj <>
Cc: Rich Felker <>
Subject: Re: [PATCH] add definition of max_align_t to stddef.h

On Sun, May 4, 2014 at 4:42 AM, PaweĊ‚ Dziepak <> wrote:
>> Is there a bug filed against gcc yet?
> The behavior in GCC 4.9 has changed. _Alignof(long long) now is always
> 4. _Alignof(max_align_t) remains 8 though. Because of this, the
> solution I proposed in earlier post doesn't work anymore
> (_Alignof(max_align_t) would be 4 if GCC 4.9 didn't complain that
> _Alignas(long long) reduces alignment of long long which is weird but
> probably doesn't matters much in this discussion) and I looks like the
> only option is to use __attribute__((__aligned__(...))). I don't think
> there is reason for me to send another version of this patch since
> there has already been sent a patch which defines max_align_t in such
> way.

yes and I think we have to care for few gcc versions gcc 4.9 is pretty
new we should still support older gcc versions.

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