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60 lines
1.3 KiB
Mathematica
60 lines
1.3 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module multimode_missing_impure.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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:- implementation.
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main -->
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{ In = 42 },
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{ test0 },
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{ test1(In) },
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{ test1(_Out0) },
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{ test2(In, In) },
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{ test2(In, _Out1) },
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{ test2(_Out2, In) },
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{ test2(_Out3, _Out4) }.
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:- pred test0.
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:- mode test0 is det.
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test0 :-
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puts("test0").
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% This should be declared impure, or promised pure.
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:- pred test1(int).
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:- mode test1(in) is det.
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:- mode test1(out) is det.
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test1(_::in) :-
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puts("test1(in)").
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test1(0::out) :-
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puts("test1(out)").
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% This should be declared impure, or promised pure.
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:- pred test2(int, int).
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:- mode test2(in, in) is det.
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:- mode test2(in, out) is det.
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:- mode test2(out, in) is det.
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:- mode test2(out, out) is det.
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test2(_::in, _::in) :-
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puts("test2(in, in)").
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test2(_::in, 0::out) :-
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puts("test2(in, out)").
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test2(0::out, _::in) :-
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puts("test2(out, in)").
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test2(0::out, 0::out) :-
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puts("test2(out, out)").
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:- pred puts(string::in) is det.
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puts(_).
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:- pragma foreign_proc("C",
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puts(S::in),
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[promise_pure, will_not_call_mercury],
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"
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puts(S);
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").
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