Actually, arc just compiles everything down to Scheme; Scheme, of course, has full continuation support, and thus so does Arc.
That's a nice explanation of continuations, but one comment: I think (if I remember what I read correctly) that writing ccc in terms of mark-the-current-spot (or perhaps get/cc, or gcc :P) is actually impossible, but I could be wrong. The other advantage of ccc is that every flow control construct can be simulated using it (including, but not limited to, C's return).
> I think (if I remember what I read correctly) that writing ccc in terms of mark-the-current-spot (or perhaps get/cc, or gcc :P) is actually impossible, but I could be wrong.
that's the short-term conclusion i came to when i was fidding with it. i didn't exactly prove it was the case though so i was being safe
