[Jython-bugs] [ jython-Bugs-1802626 ] list and tuple multiplication

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Bugs item #1802626, was opened at 2007-09-26 11:13
Message generated for change (Comment added) made by rajesh_battala
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Category: Core
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Weatherman (thomas_meister)
Assigned to: Nobody/Anonymous (nobody)
Summary: list and tuple multiplication

Initial Comment:
Hi,

I found a bug (maybe you see it a feature) in the handling of negative values when using lists and tuples.

If I use a string, then an empty string is returned:
> "0" * (-1)
""

If I use a list or a tuple, then a runtime exception happens
> [0] * (-1)
java.lang.NegativeArraySizeException

> (0,) * (-1)
java.lang.NegativeArraySizeException

Note: CPython returns an empty list or empty tuple instead.

I found this bug/inconsistency when I tried to import decimal.py python source.

Thank you in advance,
Greetings
Weatherman

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Comment By: rajesh battala (rajesh_battala)
Date: 2007-09-28 04:39

Message:
Logged In: YES 
user_id=1851210
Originator: NO

hi Weatherman..
i ve  lookeda at your comment.
but looks its working fine .. try with the new build. it will work.

Jython 2.3a0 on java1.5.0
Type "copyright", "credits" or "license" for more information.
>>> "0"*(-1)
''
>>> [0]*(-1)
[]
>>> (0,)*(-1)
()
>>>


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