Re: [boost] Optimized portable isnan, isfinite, fpclassify etc

From: Boris Gubenko (Boris.Gubenko_at_[hidden])
Date: 2006-10-17 09:12:09

> Now endian.hpp defines BOOST_BIG_ENDIAN on HP-UX.
> This was suggested by Boris Gubenko.
>
> If you are right John, then this seems to be incorrect.
> Shouldn't endian.hpp then define something like
> BOOST_UNKNOWN_ENDIAN on HP-UX?
>
> Boris, do you have any comments on this?

I'm checking with the OS folks and will report back here,
for both HP-UX/ia64 and Tru64 Alpha.

Thanks,
  Boris

----- Original Message ----- 
From: "Johan Råde" <rade_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Tuesday, October 17, 2006 9:00 AM
Subject: Re: [boost] Optimized portable isnan, isfinite, fpclassify etc

> John Maddock wrote:
>> I'm not completely certain, but I believe HP-UX falls into this category:
>> the idea is that you can pass binary data from one platform to another, 
>> and
>> just switch the endianness bit to access it natively (think distributed
>> applications).
>
> Now endian.hpp defines BOOST_BIG_ENDIAN on HP-UX.
> This was suggested by Boris Gubenko.
>
> If you are right John, then this seems to be incorrect.
> Shouldn't endian.hpp then define something like BOOST_UNKNOWN_ENDIAN on
> HP-UX?
>
> Boris, do you have any comments on this?
>
> Then my fpclassify could use a fast implementation when BOOST_BIG_ENDIAN
> or BOOST_LITTLE_ENDIAN is defined and a slower implementation when
> BOOST_UNKNOWN_ENDIAN is defined.
>
> --Johan
>
>
>
>
>
>
>
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