Re: continuations in ``the art of computer programming''

From	Lawrence D’Oliveiro <ldo@nz.invalid>
Newsgroups	comp.programming
Subject	Re: continuations in ``the art of computer programming''
Date	2026-09-25 00:06 +0000
Organization	A noiseless patient Spider
Message-ID	<1194du2$34hlg$7@dont-email.me> (permalink)
References	<87se31fd84.fsf@safunu.org> <87tsnhtbbl.fsf@ID-208667.user.individual.de> <87ld8qd1px.fsf@safunu.org>

Show all headers | View raw

On Thu, 24 Sep 2026 13:59:54 -0300, Anton Antimo wrote:

> So I think call/cc is essentially a jump over there, do something
> and take here an address for you to get back to what you were doing
> before.

There doesn’t need to be a jump to begin with. You could just save the
return point and continue execution normally. Think setjmp/longjmp in
C -- that’s a form of continuation, too.

It’s just that the Lisps usually implement it as “call a function
while passing it another function which, when called, jumps back to
just after the point of the initial call”.

Back to comp.programming | Previous — Previous in thread | Find similar | Unroll thread

Thread

continuations in ``the art of computer programming'' Anton Antimo <anton@safunu.org> - 2026-09-22 13:43 -0300
  Re: continuations in ``the art of computer programming'' ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-22 18:04 +0000
  Re: continuations in ``the art of computer programming'' usenet@stegropa.de (Stefan Große Pawig) - 2026-09-22 20:01 +0200
    Re: continuations in ``the art of computer programming'' Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-22 21:07 +0000
    Re: continuations in ``the art of computer programming'' Anton Antimo <anton@safunu.org> - 2026-09-24 13:59 -0300
      Re: continuations in ``the art of computer programming'' Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-25 00:06 +0000

csiph-web