Sender: rich AT phekda DOT freeserve DOT co DOT uk
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Date: Tue, 24 Jun 2003 20:11:09 +0100
From: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
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To: djgpp-workers AT delorie DOT com
Subject: Re: memalign hooks (was: LIBM patch for GCC 3.3 - math changes)
References: <20030623061004 DOT 0164E33DBBB AT iceage DOT anubex DOT com>
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Reply-To: djgpp-workers AT delorie DOT com

Hello.

Tim Van Holder wrote:
> 
> > > I think memalign should also fail for alignment parameter < ALIGN
> > > value (i.e. 8 at present).
> >
> > IMHO, it should behave in a way that is compatible with other
> > implementations.  Could someone please look on their nearest Unix or
> > GNU/Linux box and see what does memalign there do for such small
> > alignment parameters?  (Sorry, no time to do this myself.)
> 
> Below is what the glibc 2.3.2 (Red Hat 8.0) has to say; note that it
> does not say what it does if BOUNDARY is NOT a power of 2.
> I could check the glibc sources if necessary.
[snip]

FWIW it segfaults for me (on glibc 2.1.3) if the boundary is not a power of 2.
I'm not saying that that's desireable behaviour. Maybe it should just fail by
returning NULL in DJGPP.

Bye, Rich =]

-- 
Richard Dawe [ http://www.phekda.freeserve.co.uk/richdawe/ ]