special case (inf,-inf,nan) float problems.
Kevin Jacobs
jacobs at darwin.epbi.cwru.edu
Fri Apr 6 07:53:42 EDT 2001
Tim Peters <tim.one at home.com> wrote:
> Sorry, it has not. Providing a consistent 754 story across platforms is a
> pain in the ass, because none of this behavior is covered by C89, and every
> vendor does it a different way. So it requires a large pile of platform
> #ifdef'ed code, and platform experts to write and contribute that stuff. But
> so far, nobody has volunteered any actual work (talk, yes; code, no).
Code, yes-- its just not ready to be seen by the light of day. It has
taken a long time because I want to make it possible for CPython and Jython
to eventually have the same FP semantics -- or at least as close as
possible. I've yet to directly tackle the direct Python implementation, but
I'm working on a C library I'm calling libieee754 that abstracts the bulk of
what C99 FP allows, even though most platforms do not yet support it
directly. My goal is for a public release in the next few months, a formal
PEP and Python integration soon thereafter.
-Kevin
--
-----------> Kevin Jacobs <-----------|-------> (216) 986-0710 <--------
Informatics Consultant | Department of Epidemiology
Primary mail: jacobs at theopalgroup.com | & Biostatistics
Alternate mail: jacobs at darwin.cwru.edu | Case Western Reserve University
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