Numeric comparison anomaly

[Piet van Oostrum]

>>>>> sismex01 at hebmex.com (S) wrote:
 
>> From: Piet van Oostrum [mailto:piet at cs.uu.nl]
>> Sent: Thursday, February 20, 2003 4:56 AM
>> 
>> >>>>> Gerrit Holl <gerrit at nl.linux.org> (GH) schreef:
>> 
GH> You can use the __cmp__ overloader:
>> 
GH> 21 >>> class A:
GH> 21 ...  def __cmp__(self, other):
GH> 21 ...   return 1
GH> 21 ...
GH> 22 >>> A() > 5
GH> True
GH> 23 >>> A() < 9
GH> False
GH> 24 >>> A() >= 3
GH> True
>> 
>> >>> inf = A()
>> >>> inf > inf
>> True
>> >>> inf == inf
>> False
>> >>> 
>> 

S> This is correct, or wrong?

I would consider that incorrect. But others may differ. But if it is
considered correct, then > is not an ordering for sets that include inf.
On the other hand, in Python > isn't an ordering in general.
-- 
Piet van Oostrum <piet at cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP]
Private email: P.van.Oostrum at hccnet.nl