I put in Duff's Device looked interesting. https://godbolt.org/g/SVhqKP https://godbolt.org/g/SVhqKP https://en.wikipedia.org/wiki/Duff's_device https://en.wik

I put in Duff's Device looked interesting. https://godbolt.org/g/SVhqKP https://godbolt.org/g/SVhqKP https://en.wikipedia.org/wiki/Duff's_device https://en.wikipedia.org/wiki/Duff's_device