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[ts-7000] Re: Endianess Problem

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Subject: [ts-7000] Re: Endianess Problem
From: "Adriano Naspolini" <>
Date: Tue, 24 Mar 2009 14:18:14 -0000
Thank you for answers!

Maybe you didn't notice that the number is not little-endian nor big-endian, 
but middle-endian.

It means that it's little-endian in bytes, but big-endian in words. (see 
http://en.wikipedia.org/wiki/Endianness#Middle-endian)

Maybe a middleware solve the problem (introducing a little overhead) and lots 
of work (i never used), but before, I'll try to upgrade the kernel to armel (as 
i read, it's little-endian).

Now, the question is: why, the hell, arm has this "stupid" representation? :)

So, after upgrading I tell you!

Best regards,

Adriano


--- In  David Hawkins <> wrote:
>
> Anssi Kolehmainen wrote:
> > On Mon, Mar 23, 2009 at 08:39:26PM -0000, Adriano Naspolini wrote:
> >> I'm having some problems with arm endianess of floating types.
> > 
> > Use htonl(), ntohl() and others when writing/reading data. For example
> > keep the data in file in network byte order and then just convert it to
> > host byte order when you read it.
> > 
> 
> htonl() is for 32-bit data, the original question was regarding
> 8-byte doubles.
> 
> The htonl() functions and friends are for XDR data representation,
> so the OP can check the XDR API functions for a double conversion
> routine, or a function to implement it can be easily written.
> 
> CDR functions for doubles definitely exist.
> 
> Cheers,
> Dave
>




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