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From: ludo@gnu.org (Ludovic Courtès)
To: "Andy Wingo" <wingo@pobox.com>
Cc: guile-devel@gnu.org
Subject: SCM_STATIC_ALIGNED_ARRAY
Date: Mon, 01 Mar 2010 17:33:27 +0100	[thread overview]
Message-ID: <87635ggfxk.fsf@gnu.org> (raw)
In-Reply-To: <E1NjgMt-0000xD-7j@vcs-noshell.in.savannah.gnu.org> (Andy Wingo's message of "Mon, 22 Feb 2010 22:03:07 +0000")

Hello Andy!

"Andy Wingo" <wingo@pobox.com> writes:

> commit cee1d22c3c10b1892c82a5758ef69cd6fc9aba31
> Author: Andy Wingo <wingo@pobox.com>
> Date:   Mon Feb 22 23:00:19 2010 +0100
>
>    actually capture partial continuations

[...]

> +#ifdef SCM_ALIGNED
> +#define SCM_DECLARE_STATIC_ALIGNED_ARRAY(type, sym)\
> +static const type sym[]
> +#define SCM_STATIC_ALIGNED_ARRAY(alignment, type, sym)\
> +static SCM_ALIGNED (alignment) const type sym[]
> +#else
> +#define SCM_DECLARE_STATIC_ALIGNED_ARRAY(type, sym)\
> +static type *sym
> +#define SCM_STATIC_ALIGNED_ARRAY(alignment, type, sym)                  \
> +SCM_SNARF_INIT(sym = scm_malloc (sizeof(sym##__unaligned) + alignment - 1); \

‘scm_gc_malloc_pointerless ()’ could be used here.  It always returns
8-byte aligned areas [0], which should allow some of the alignment
twiddling to be removed.  What do you think?

Also, the indentation, spacing, etc., are not GCS-conforming.

Thanks,
Ludo’.

[0] http://www.hpl.hp.com/hosted/linux/mail-archives/gc/2006-May/001280.html




       reply	other threads:[~2010-03-01 16:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E1NjgMt-0000xD-7j@vcs-noshell.in.savannah.gnu.org>
2010-03-01 16:33 ` Ludovic Courtès [this message]
2010-07-17 10:23   ` SCM_STATIC_ALIGNED_ARRAY Andy Wingo
2010-07-17 12:54     ` SCM_STATIC_ALIGNED_ARRAY Ludovic Courtès

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