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List:       linux-newbie
Subject:    Re: uint8_t mean8[8] __attribute__ ((aligned (32))), *mp;
From:       Manish Regmi <regmi.manish () gmail ! com>
Date:       2004-11-27 7:57:09
Message-ID: 652016d304112623391e36a202 () mail ! gmail ! com
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On Fri, 26 Nov 2004 18:40:15 +0000 (GMT), Ankit Jain
<ankitjain1580@yahoo.com> wrote:
> if somebody can tell me what this __attribute__ is
> doing
> 
> what kind of alignement is this
> 
> uint8_t  mean8[8] __attribute__ ((aligned (32))),
> *mp;
> 
> thanks
> 
> ankit jain
> 

__attribute__ and aligned()  are a gcc builtin.

aligned(32) generates 32 byte aligned address. so that data is stored
on 32 byte aligned address.

This is done for performance reasons. 

see gcc manual for more details.

regards manish

-- 
Manish Regmi
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