Today, I implemented the #async / #await pattern (as known from #csharp and meanwhile quite some other languages) ...
... in good old #C! 馃槑
Well, at least sort of.
* It requires some standard library support, namely #POSIX user context switching with #getcontext and friends, which was deprecated in POSIX-1.2008. But it's still available on many systems, including #FreeBSD, #NetBSD, #Linux (with #glibc). It's NOT available e.g. on #OpenBSD, or Linux with some alternative libc.
* I can't do anything about the basic language syntax, so some boilerplate comes with using it.
* It has some overhead (room for extra stacks, even extra syscalls as getcontext unfortunately also always saves/restores the signal mask)
But then ... async/await in C! 馃コ
Here are the docs:
https://zirias.github.io/poser/api/latest/class_p_s_c___async_task.html