Martin Panter <vadmium...@gmail.com> added the comment: I find the model in terms of “bit_length” hard to understand. You have to understand what bit_length returns, and why you added 1. Bit_length is awkward for negative numbers. It only uses the absolute value, which would give off-by-one problems with negative values, so I guess you added 1 to compensate.
I understand the bitwise operations as using two’s complement extended to an unlimited width, so that negative values have a series of ones for the most-significant bits. I presume this is what your “2-adic representation” is. Having this spelled out may have helped when I was learning Python. ---------- nosy: +martin.panter _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue29710> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
