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64 lines
1.8 KiB
Mathematica
64 lines
1.8 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module pack_args_intermod2.
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:- interface.
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:- import_module io.
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:- type animal.
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:- type struct
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---> struct(
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animal, animal, % word 0
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int, % word 1
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string, % word 2
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animal, animal, animal, animal % word 3
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).
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:- func ani(int) = animal.
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:- pred write_struct(struct::in, io::di, io::uo) is det.
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:- pred write_animal(animal::in, io::di, io::uo) is det.
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%---------------------------------------------------------------------------%
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%---------------------------------------------------------------------------%
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:- implementation.
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:- type animal
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---> ant % 0
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; bat % 1
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; cat % 2
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; dog % 3
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; eel % 4
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; fox % 5
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; gnu % 6
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; hog. % 7
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ani(I) =
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( if I = 0 then ant
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else if I = 10 then bat
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else if I = 20 then cat
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else if I = 30 then dog
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else if I = 40 then eel
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else if I = 50 then fox
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else if I = 60 then gnu
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else hog
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).
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write_struct(struct(A, B, I, S, C, D, E, F), !IO) :-
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write_animal(A, !IO), io.write_string(", ", !IO),
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write_animal(B, !IO), io.write_string(", ", !IO),
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io.write_int(I, !IO), io.write_string(", ", !IO),
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io.write_string(S, !IO), io.write_string(", ", !IO),
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write_animal(C, !IO), io.write_string(", ", !IO),
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write_animal(D, !IO), io.write_string(", ", !IO),
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write_animal(E, !IO), io.write_string(", ", !IO),
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write_animal(F, !IO).
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write_animal(Animal, !IO) :-
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io.write(Animal, !IO).
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