If I understand correctly I need to supply a reference implementation for
PEP 242.
I have made considerable progress on this:
C:\Paul\Numerical\Packages\kinds>python
Python 2.1b2 (#12, Mar 23 2001, 14:01:30) [MSC 32 bit (Intel)] on win32
Type "copyright", "credits" or "license" for more information.
>>> import kinds
>>> f=kinds.float_kind(5,100)
>>> f.max
1.7976931348623157e+308
>>> f.min
2.2250738585072014e-308
>>> f.epsilon
2.2204460492503131e-016
>>> f.radix
0.3010299956639812
>>> f.epsilonbyradix
1.1102230246251565e-016
>>> 10.0**f.radix
2.0 # in case you were wondering...
>>> f(7)
7.0
>>>
These five attributes are the standard ones computed by routines such as
d1mach.
(See netlib.org, search for d1mach).
These attributes I made up:
f.name ('Float' in this case)
f.typecode ('d' in this case, a typecode suitable for modules array or
Numeric
I haven't updated the PEP itself with the comments I got, but it essentially
amounts to fixing the section on coercion, which I mainly realized I don't
really have to deal with.
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