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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-10-03 09:22:49 -0300 |
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| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-10-31 14:18:03 -0300 |
| commit | 274a46c9b25ab733a1fb9fb1497f1beecae30193 (patch) | |
| tree | 6bbc5910ee51e37f4dc0621b64554ae0a7e0db2d /manual | |
| parent | d097f3c79be55d646d86efb7ce876bf84d5ebe4e (diff) | |
| download | glibc-274a46c9b25ab733a1fb9fb1497f1beecae30193.tar.gz glibc-274a46c9b25ab733a1fb9fb1497f1beecae30193.tar.xz glibc-274a46c9b25ab733a1fb9fb1497f1beecae30193.zip | |
stdlib: Implement introsort for qsort (BZ 19305)
This patch makes the quicksort implementation to acts as introsort, to avoid worse-case performance (and thus making it O(nlog n)). It switch to heapsort when the depth level reaches 2*log2(total elements). The heapsort is a textbook implementation. Checked on x86_64-linux-gnu and aarch64-linux-gnu. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diffstat (limited to 'manual')
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