[mercury-users] failure warning

[Peter Schachte]

> foo(X, Y) :-
>     ( if ... then
>         Y = ...
>     else
>         false
>     ).

I'm just curious why you don't more succinctly write

foo(X, Y) :-
        ...,
        Y = ... .

or even

foo(X, ...) :-
        ... .

This, of course, is not to say that the behavior you are asking about
is OK.

-- 
Peter Schachte              A witty saying proves nothing.
schachte at cs.mu.OZ.AU            -- Voltaire 
www.cs.mu.oz.au/~schachte/  
Phone: +61 3 8344 1338      
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