On 02/07/2015 15:52, Steven D'Aprano wrote:
Despite the title, this is not one of the usual "Why can't Python do
maths?" "bug" reports.
Can anyone reproduce this behaviour? If so, please reply with the version of
Python and your operating system. Printing sys.version will probably do.
x = 1 - 1/2**53
assert x == 0.9999999999999999
...
as stated the above fails since it produces x==1L for python 2.7 (Python 2.7.8
(default, Jun 30 2014, 16:08:48) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.)
If I convert old style
x = 1.0 - 1.0/2**53 then the assertion succeeds and the loop does not print.
--
Robin Becker
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