Niklas Fiekas added the comment: Searching popcount in Python files on GitHub yields a considerable number of examples:
https://github.com/search?utf8=%E2%9C%93&q=popcount+extension%3Apy&type=Code Perhaps intresting: * In CPython itself: See count_set_bits in Modules/mathmodule.c * Domain specific applications: Bitboards in Chess, fairly shuffling cards in Poker, comparing molecules * Size of bitsets (see bitarray and bitsets I listed above). Probably for this reason also as a first class citizen in Redis: https://redis.io/commands/bitcount. Probably most important: * As the Hamming Distance: https://en.wikipedia.org/wiki/Hamming_distance#History_and_applications --- Btw. not a concrete application. I just stumbled upon this. popcnt was considered important enough to be included in the rather limited WebAssembly instruction set: https://github.com/WebAssembly/spec/raw/master/papers/pldi2017.pdf ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue29882> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
