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Date: Sat, 09 Feb 2002 16:40:33 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
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In-reply-to: <200202091234.g19CYUV17283@envy.delorie.com> (message from DJ
	Delorie on Sat, 9 Feb 2002 07:34:30 -0500)
Subject: Re: Alignment problem
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> Date: Sat, 9 Feb 2002 07:34:30 -0500
> From: DJ Delorie <dj AT delorie DOT com>
> 
> Malloc doesn't know the difference between allocating 8 bytes for a
> double, or for 8 chars.  And since you can always realloc a buffer, I
> don't think we can rely on the size of the allocation to determine
> what kinds of data types will be used with it.

Then perhaps we should always align on 8-byte boundary; GCC already
does that for the stack.  Since malloc rounds the allocation size to
an integral multiple of 8, it sounds like making sure every allocation
is 8-byte aligned should boil down to forcing a suitable alignment of
the beginning of every contiguous chunk returned by sbrk.