[Pyobjc-dev] [ pyobjc-Bugs-678818 ] Missing NSCFNumber to int conversions

[SourceForge.net <no...@so...>]

Bugs item #678818, was opened at 2003-02-01 14:16
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=114534&aid=678818&group_id=14534

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: David Eppstein (eppstein)
Assigned to: Nobody/Anonymous (nobody)
Summary: Missing NSCFNumber to int conversions

Initial Comment:
The attached code shows two problems and one
non-problem with NSCFNumber (a data type that arises
when objc passes an integer value to a python routine
-- in the code, python ints passed to undoManager get
transmogrified into this type when an undo or redo is
requested).

1. if x: should only execute the if clause when x is
nonzero.  But if x is a zero NSCFNumber, the clause
gets executed erroneously (third line of code's output
is "Increment by ..." instead of "Null increment")

2. str(x) should produce a decimal representation of x,
but if x is an NSCFNumber, it instead produces a string
like '<NSCFNumber objective-c instance 0x832ed0>'
(third and fourth lines of code's output).

Given these bobbles, I would have expected to also have
problems with arithmetic expressions involving
NSCFNumber, but that is a non-problem -- the arithmetic
in the attached code behaves correctly.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=114534&aid=678818&group_id=14534