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Groups > comp.lang.python > #198026
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| From | ram@zedat.fu-berlin.de (Stefan Ram) |
| Newsgroups | comp.lang.python |
| Subject | Re: ( n & -n ).bit_length() - 1 ## Really? |
| Date | 19 Sep 2026 20:39:58 GMT |
| Organization | Stefan Ram |
| Lines | 10 |
| Expires | 1 Sep 2027 11:59:58 GMT |
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"Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> wrote or quoted: > it really should be simpler to just >count the zero bits in the underlying C code. > >Why can't we do that? You /can/ ask your chatbot to generate a C extension that does this and explain how to compile and call it from Python.
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( n & -n ).bit_length() - 1 ## Really? "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 01:56 +0800
Re: ( n & -n ).bit_length() - 1 ## Really? ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-19 18:23 +0000
Re: ( n & -n ).bit_length() - 1 ## Really? "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 03:15 +0800
Re: ( n & -n ).bit_length() - 1 ## Really? Lane W <cactus_DAC@yahoo.com> - 2026-09-19 13:37 -0600
Re: ( n & -n ).bit_length() - 1 ## Really? "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 04:32 +0800
Re: ( n & -n ).bit_length() - 1 ## Really? ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-19 20:39 +0000
Re: ( n & -n ).bit_length() - 1 ## Really? "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 04:56 +0800
myrkraverk.c (was: Re: ( n & -n ).bit_length() - 1 ## Really?) "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 18:00 +0800
Re: myrkraverk.c ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-20 12:25 +0000
Re: myrkraverk.c "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 21:33 +0800
Re: myrkraverk.c ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-20 13:48 +0000
Re: myrkraverk.c "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 22:09 +0800
jacobi_symbol.py (was: Re: myrkraverk.c) Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-09-21 20:34 +0800
Re: jacobi_symbol.py Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-09-22 15:20 +0800
Re: jacobi_symbol.py Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-09-25 23:32 +0800
Re: ( n & -n ).bit_length() - 1 ## Really? "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-20 04:52 +0800
Re: ( n & -n ).bit_length() - 1 ## Really? Paul Rubin <no.email@nospam.invalid> - 2026-09-19 14:50 -0700
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