46 lines
671 B
Plaintext
46 lines
671 B
Plaintext
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:- object(quick(_Order)).
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:- info([
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authors is 'Paulo Moura',
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version is 1.0,
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date is 2000/4/22,
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parnames is ['Order'],
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comment is '.',
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source is 'Example adopted from the Francis G. McCabe L&O documentation.']).
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:- public(sort/2).
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:- mode(sort(+list, -list), one).
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sort([], []).
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sort([X| L], S):-
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split(L, X, L1, L2),
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sort(L1, S1),
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sort(L2, S2),
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app(S1, [X| S2], S).
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split([], _, [], []).
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split([D| L], X, [D| L1], L2):-
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parameter(1, Order),
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Order::less(D, X),
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!,
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split(L, X, L1, L2).
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split([D| L], X, L1, [D| L2]):-
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split(L, X, L1, L2).
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app([], L, L).
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app([H| T], L, [H| T2]) :-
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app(T, L, T2).
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:- end_object.
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