[Cython] constant folding for floats?

[Carl Witty]

On Mon, Apr 6, 2009 at 10:15 AM, Stefan Behnel <stefan_ml at behnel.de> wrote:
> Hi,
>
> should we enable constant folding for floats by using the decimal module?

I don't think so.

1) Is there any advantage to doing constant folding in Cython instead
of letting the C compiler do it?

2) If I write a constant floating-point expression, I expect it to be
evaluated according to IEEE rounding rules.  (So I would prefer doing
the constant folding using Python floats, which will usually match the
computations performed in the target, rather than the decimal module,
which won't match the target.)

Carl