[Numpy-discussion] Solaris Sparc build broken

Charles R Harris charlesr.harris@gmail....
Thu Nov 5 01:07:02 CST 2009


On Wed, Nov 4, 2009 at 11:39 PM, David Cournapeau <
david@ar.media.kyoto-u.ac.jp> wrote:

> Charles R Harris wrote:
> >
> >
> > On Wed, Nov 4, 2009 at 11:30 PM, David Cournapeau
> > <david@ar.media.kyoto-u.ac.jp <mailto:david@ar.media.kyoto-u.ac.jp>>
> > wrote:
> >
> >     Charles R Harris wrote:
> >
> >     >
> >     > I don't think it's that bad. Leaving out the ppc and sticking to
> >     ieee,
> >     > there is only double precision, extended precision and quad
> >     precision
> >     > versions of long double and they  are easily determined at run
> time.
> >
> >     How would you determine this at runtime ?
> >
> >
> > Excepting the PPC, just loop adding a number to one, dividing it by
> > two at each iteration, and stop when the result is equal to one.
>
> But that's not what I need. I need to know exactly the binary
> representation: how many bits in the mantissa/exponent and where, the
> exponent, where does subnormals start, the range of NAN representations,
> etc...
>
>
It tells you how many bits are in the mantissa, and given ieee the rest
follows. We only support ieee anyway.

Chuck
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.scipy.org/pipermail/numpy-discussion/attachments/20091105/65cef1d3/attachment.html 


More information about the NumPy-Discussion mailing list