T.By at dcs.shef.ac.uk
Fri Sep 26 09:24:55 AEST 1997
"Fergus Henderson" <fjh at cs.mu.oz.au> wrote:
> Tomas By, you wrote:
> > In general, if I have a procedure with several modes, eg:
> > [...]
> > but I can't use the same code for both modes, how do I write
> > the "top-level"?
> The way to do this is to pass a argument specifying the direction:
Hmm. Is there any reason to do it that way rather than have two
:- pred stream_to_tree(stream(T),tree(T)).
:- mode stream_to_tree(in,out).
:- pred tree_to_stream(tree(T),stream(T)).
:- mode tree_to_stream(in,out).
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