[Haskell-cafe] Re: copy-on-write monad?

oleg at pobox.com oleg at pobox.com
Sat Jun 23 04:01:00 EDT 2007

Greg Meredith wrote:
> First, has anyone worked out a monadic
> approach to copy-on-write? (And, Is there any analysis of perf
> characteristics of said monadic schemes?)

If you use Zippers (Huet's or generic ones) with functional updates,
copy-on-write comes out automatically and by default. This is
explained in 
and, in a more readable form, in a recent paper

The web page also contains the complete code.

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