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30 lines
514 B
Mathematica
30 lines
514 B
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module det_switch.
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:- interface.
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:- type enum
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---> a
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; b
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; c.
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:- pred p(enum, int).
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:- mode p(in, out) is det.
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:- mode p(out, in) is semidet.
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:- mode p(out, out) is multi.
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:- implementation.
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p(a, 1).
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p(b, 2).
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p(c, 3).
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:- pred q(enum, int).
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:- mode q(in, out) is semidet.
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q(a, 1).
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q(b, 2).
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