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Date:      Fri, 27 Oct 2000 18:27:58 +0300
From:      Ruslan Ermilov <ru@FreeBSD.org>
To:        Mike Smith <msmith@mass.osd.bsdi.com>, Bruce Evans <bde@FreeBSD.org>, Konstantin Chuguev <Konstantin.Chuguev@dante.org.uk>, Brian Somers <brian@Awfulhak.org>, kargl@apl.washington.edu, freebsd-current@FreeBSD.org
Subject:   Re: platform byte order macros?
Message-ID:  <20001027182758.A41742@sunbay.com>
In-Reply-To: <20001027181149.B39062@sunbay.com>; from ru@FreeBSD.org on Fri, Oct 27, 2000 at 06:11:49PM %2B0300
References:  <20001027160724.A29559@sunbay.com> <200010271434.e9REY6F00412@mass.osd.bsdi.com> <20001027181149.B39062@sunbay.com>

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On Fri, Oct 27, 2000 at 06:11:49PM +0300, Ruslan Ermilov wrote:
> On Fri, Oct 27, 2000 at 07:34:06AM -0700, Mike Smith wrote:
> > > On Fri, Oct 27, 2000 at 09:49:57PM +1100, Bruce Evans wrote:
> > > [...]
> > > > 
> > > > NetBSD supports the ntohl family on constants, but only on some arches
> > > > (at least in last year's version).  It takes fancier macros to support
> > > > constants.  This gives an excuse to change the inline functions back to
> > > > macros :-).
> > > > 
> > > Cool!  My upcoming byte-swapping changes to IPv4 code would benefit from
> > > having these macros.  Could you please review the attached patch (it was
> > > obtained from NetBSD)?
> > ...
> > > +#ifdef __OPTIMIZE__
> > 
> > Using macros does not "optimise" anything, and this is a very poor choice 
> > of defines.  __MACRO_ENDIAN_CONVERSIONS might be better.
> > 
> Huh, you would not call this optimization?!
> 
Just thought that you raised another issue here, the choice of __OPTIMIZE__.
If that's the case, it is the GCC's define used to indicate the optimizing
compilation:

# cpp -O -dM /dev/null
#define __FreeBSD__ 4
#define __FreeBSD_cc_version 410000
#define __i386__ 1
#define __i386 1
#define i386 1
#define __OPTIMIZE__ 1
#define __unix 1
#define __unix__ 1
#define __ELF__ 1
#define unix 1


-- 
Ruslan Ermilov		Oracle Developer/DBA,
ru@sunbay.com		Sunbay Software AG,
ru@FreeBSD.org		FreeBSD committer,
+380.652.512.251	Simferopol, Ukraine

http://www.FreeBSD.org	The Power To Serve
http://www.oracle.com	Enabling The Information Age


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