---------- Forwarded message --------- From: Hirrolot <hirrolot@xxxxxxxxx> Date: Mon, Jan 31, 2022 at 10:59 PM Subject: Re: Prohibit use of break/continue in a statement To: David Brown <david.brown@xxxxxxxxxxxx> Ah, actually, the implementation is rather involved. I tried to explain it in my blog post [1]. The section "Pattern matching" should give you a clear sense of what is happening. Yes, `#define` directives for `break` and `continue` should work, but defining and undefining them every time would be a true hassle. [1] https://hirrolot.github.io/posts/compiling-algebraic-data-types-in-pure-c99.html