[m-rev.] State variable syntax transformation

[Fergus Henderson]

On 26-Feb-2002, Michael Day <mikeday at bigpond.net.au> wrote:
> 
> > The determinism of the goal `if we_have_a_problem(X) then throw(...)
> > else true' is `det', not `erroneous'.
...
> So... don't use --no-fully-strict when you're debugging? Or always make
> sure you have a convenient io state for those debug messages?

You don't need an io__state; any output argument will do.

	p(Output) :-
		Output0 = ...,
		(if we_have_a_problem(X) then throw(...) else Output = Output0).

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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