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| author | Tim Peters <tim.peters@gmail.com> | 2024-05-08 00:09:09 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-08 00:09:09 (GMT) |
| commit | 2f0a338be66e276a700f86af51d5ef54a138cbfb (patch) | |
| tree | 3cf16245a701df9250c93b7684dbee8bc44b8376 /Objects | |
| parent | 2a85bed89dc14327afe344a57233a37795fde2b9 (diff) | |
| download | cpython-2f0a338be66e276a700f86af51d5ef54a138cbfb.zip cpython-2f0a338be66e276a700f86af51d5ef54a138cbfb.tar.gz cpython-2f0a338be66e276a700f86af51d5ef54a138cbfb.tar.bz2 | |
gh-118610: Centralize power caching in `_pylong.py` (#118611)
A new `compute_powers()` function computes all and only the powers of the base the various base-conversion functions need, as efficiently as reasonably possible (turns out that invoking `**`is needed at most once). This typically gives a few % speedup, but the primary point is to simplify the base-conversion functions, which no longer need their own, ad hoc, and less efficient power-caching schemes.
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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