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Date: Tue, 24 Oct 2017 14:30:26 +0100
From: "Richard W.M. Jones" <rich@annexia.org>
To: Simon Cruanes <simon.cruanes.2007@m4x.org>
Cc: Ivan Gotovchits <ivg@ieee.org>, David Allsopp <dra-news@metastack.com>,
	caml-list <caml-list@inria.fr>,
	Malcolm Matalka <mmatalka@gmail.com>
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Subject: Re: [Caml-list] What if exn was not an open type?

On Fri, Oct 20, 2017 at 01:38:16PM +0200, Simon Cruanes wrote:
> Exceptions are also very useful as control structures sometimes. For
> example:
> 
> - exiting from a traversal (graph, tree, `Foo.iter` functions) early
> - being able to return a result from any point in a very large algorithm
>   (e.g. returning "sat" or "unsat" in a SAT solver, where the main
>   algorithm can span several hundreds or thousands of lines).

Since I first used OCaml I have wished for a simple (and type safe)
return statement.

Rich.