[Python-Dev] Drop support for ones' complement machines?

Alexander Belopolsky alexander.belopolsky at gmail.com
Tue Dec 1 17:47:45 CET 2009

On Tue, Dec 1, 2009 at 11:24 AM, Mark Dickinson <dickinsm at gmail.com> wrote:
> On Tue, Dec 1, 2009 at 4:17 PM, James Y Knight <foom at fuhm.net> wrote:
>> I think all that needs to be defined is that conversion from unsigned to signed, and (negative) signed to
>>  unsigned integers have 2's complement wrapping semantics, and does not affect the bit pattern in memory.

I don't know if this particular implementation defined behavior is
safe to be relied upon. I just want to suggest that if any such
assumption is made in the code, a test should be added to configure to
complain loudly if a platform violating the assumption is found in the

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