Deciphering the postcard-sized raytracer
For anyone else who read the article and is itching for more, the International Obfuscated C Code Contest[0] (IOCCC) is the place for this kind of compact, obfuscated trick code. Stuff like [1] reminds me how far I still have to go with programming.[0]: https://www.ioccc.org/years-spoiler.html
[1hint]: https://www.ioccc.org/2015/mills1/hint.html
[1code]: https://www.ioccc.org/2015/mills1/prog.c