How to make spaghetti stack with C?

Question

I'm trying to make coroutine and continuation with C. I realized I need some kind of spaghetti stack. Is it possible to execute a function within a new call-stack? Of course within single thread. How can I make a new, separated call-stack, and execute some code on it?

Answer 1

check out makecontext/swapcontext.

If those aren't available, then you could use setjmp/longjmp, but those are a little more complex.