Re: Continuations

In article <v6tbki$3g9rg$1@dont-email.me>, ldo@nz.invalid (Lawrence
D'Oliveiro) wrote:

The beauty of continuations is that they are a single generalized
control construct that can be used to implement specific language
features like regular routine calls, loops, exceptions and
coroutines, all built from the same common abstraction. One thing
that is difficult to do with them is arbitrary gotos. (I consider
that a feature, not a bug.)

Just occasionally, you need a goto to get out of a complicated error
situation. Not often, but sometimes.

I'm also of the opinion that unless memory gets a lot faster, requiring
hardware to maintain and navigate data structures in memory is a bad idea.
They'll get used because they're there, but they'll be slow. One can't
avoid page tables, but they should be simple.

John