2 + 2 = 5
Rhodri James
rhodri at wildebst.demon.co.uk
Thu Jul 5 18:23:08 EDT 2012
On Wed, 04 Jul 2012 20:37:25 +0100, Paul Rubin <phr-2012 at nightsong.com>
wrote:
> I just came across this (https://gist.github.com/1208215):
>
> import sys
> import ctypes
> pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5))
> five = ctypes.cast(id(5), pyint_p)
> print(2 + 2 == 5) # False
> five.contents[five.contents[:].index(5)] = 4
> print(2 + 2 == 5) # True (must be sufficiently large values of 2
> there...)
>
> Heh. The author is apparently anonymous, I guess for good reason.
Someone's been writing FORTRAN again :-)
--
Rhodri James *-* Wildebeest Herder to the Masses
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