Sierpiński Triangle? In My Bitwise and? (lcamtuf.substack.com)
I’m an ethusiastic promoter of the C language. One of the outmoded cultural phenomena associated with C are bit-twiddling hacks: a collection of brain-teasers that implement improbably complex algorithms using bitwise arithmetic. They are often developed under the guise of code optimization, but they mostly serve to impress your friends and confuse enemies.