On Friday, 5 June 2020 at 19:12:43 UTC, ttk wrote: > Source is here .. a bit large, since I manually unrolled loops > 100x to minimize the impact of looping logic (particularly the > now() call): > > http://ciar.org/h/popcount.d Jesus. Shouldn't you be able to generate that instead of copy-pasting? It's D, after all.