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Created on 2021-02-03 13:49 by jfu33.4, last changed 2022-04-11 14:59 by admin. This issue is now closed.
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| msg386204 - (view) | Author: Johannes (jfu33.4) | Date: 2021-02-03 13:49 | |
I'm a bit confused because this seems to be too obvious to be a bug: [code] >>> -2094820900 // 1298 -1613884 >>> -2094820900 // -1298 1613883 [/code] Obviously there is a +/- 1 difference in the result. Tested with Python 3.7, 3.8 and 3.9 on Debian Bullseye. Am I missing something? |
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| msg386208 - (view) | Author: Mark Dickinson (mark.dickinson) *  |
Date: 2021-02-03 14:03 | |
Python's `//` operator does floor division: that is, the (true) quotient is converted to an integer by taking the floor (rounding towards -infinity) instead of truncating (rounding towards zero). So indeed it's not a bug. The behaviour is documented here: https://docs.python.org/3/reference/expressions.html#binary-arithmetic-operations See also #43034 |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:41 | admin | set | github: 87282 |
| 2021-02-03 14:03:28 | mark.dickinson | set | status: open -> closed nosy: + mark.dickinson messages: + msg386208 resolution: not a bug stage: resolved |
| 2021-02-03 13:49:36 | jfu33.4 | create | |