[Zope] Python Function to Test for Integer Type

[Terry Hancock]

On Thursday 17 June 2004 05:31 am, Peter Bengtsson wrote:
> > The test will fail though if the floating point
> > value isn't *exactly* an integer.
> > 
> >>>>int(1)==1.000001
> > 
> > False
> > 
> 
> Interesting::
> 
>   >>> 1==1.00000000000000001
>   True
>   >>> 1==1.000000000000001
>   False
>   >>>

Yeah, means you exceeded the floating point precision of the
storage format.  :-)

See:

>>> f = 1.000000000000001
>>> f
1.0000000000000011
>>> f = 1.00000000000000001
>>> f
1.0

That's what "exactly" means on a computer. :-D

Cheers,
Terry

--
Terry Hancock ( hancock at anansispaceworks.com )
Anansi Spaceworks  http://www.anansispaceworks.com