[plt-scheme] Continuations

> On Nov 6, 2007 9:01 AM, Joel J. Adamson <jadamson at partners.org> wrote:
> > manipulate.  I understand the escape/abortive continuation way of
> > catching exceptions, but can people list other situations?

In the c.l.s. post
(http://groups.google.com/group/comp.lang.scheme/msg/c44095d3db3dfbb2
) I made about continuations (which I mentioned in my blog), I pointed
out another classic example: re-startable exceptions.  There, I have a
iterative numerical equation solver which has a maximum number of
iterations permitted.  When this max number of iterations is reached,
the solver throws an exception *which contains the continuation of the
iterative process*.  Then the higher-level code can decide whether to
re-start the solver (using that continuation), or just give up on the
problem.

Will