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

From: Boris Gubenko (Boris.Gubenko_at_[hidden])
Date: 2006-12-09 10:32:27

Johan Rede wrote:

> Everything looks fine.

Great!

> Which platforms have you tested on now?
> Is this list correct?
>
>    VMS / HP C++ 7.1 / alpha, ia64  (ieee fp mode, not vax fp mode)
>    Tru64 / Compaq C++ 7.1 / alpha

To be precise, On VMS/ia64, it was HP C++ 7.2, but it does not
matter for your library.

> Is HP C++ the same compiler as aCC?

aCC is the name of HP C++ compiler for HP-UX, both ia64 and PA-RISC.
The compiler identification macro is __HP_aCC.

cxx is the name of HP C++ compiler for Tru64 and VMS: both AlphaVMS
and VMS/ia64. The compiler identification macro is __DECCXX.

For Tru64, the compiler was not rebranded as HP C++ compiler and
remains "Compaq C++". In reality, both AlphaVMS and Tru64 compilers
were developed by DEC, hence __DECCXX macro. For iVMS, when the
development started, DEC was already Compaq, now HP :-)

Boris