Matt Fowles <[EMAIL PROTECTED]> wrote: > Leo~ > On Tue, 16 Nov 2004 09:23:24 +0100, Leopold Toetsch <[EMAIL PROTECTED]> wrote:
>> i = 0 >> lp: >> foo() >> inc i >> if i < 10 goto lp > There is one thing I am not sure about here. The loop will work > correctly for each seperate invocation of the appropriate > continuation. No. Imagine, foo() is not a simple function anymore. Someone e.g. Jens Rieks[1], discovers that the algoritm is simpler implemented with continuations. So inside foo() the return continuation of foo() is copyied, stored elsewhere, passed along to another function, and that one now suddenly returns via this continuation to your loop. If this invocation of the continuation would restore registers suddenly the loop will become an infinite one, as C<i> is always restored to zero. [1] Have a look at runtime/parrot/library/Streams/Sub.imc leo
