TIL you cannot post retraction on a 4 month old comment on HN. I posted an upvoted comment about how these operators were invented in C due to the addressing modes available on PDP-11 computers, in the thread at <https://news.ycombinator.com/item?id=41850017>. Wrong!Turns out they predate both C and PDP-11 computers. Dennis Ritchie wrote about it in The Development of the C Programming Language, here's a link: <https://web.archive.org/web/20160304194040/http://www.bell-labs.com/usr/dmr/www/chi...