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53 lines
1.2 KiB
Mathematica
53 lines
1.2 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module multimode_dcg.
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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(!IO) :-
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In = 42,
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test0(!IO),
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test1(In, !IO),
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test1(_Out0, !IO),
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test2(In, In, !IO),
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test2(In, _Out1, !IO),
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test2(_Out2, In, !IO),
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test2(_Out3, _Out4, !IO).
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:- pred test0(io, io).
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:- mode test0(di, uo) is det.
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test0 -->
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puts("test0").
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:- pred test1(int, io, io).
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:- mode test1(in, di, uo) is det.
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:- mode test1(out, di, uo) 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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:- pred test2(int, int, io, io).
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:- mode test2(in, in, di, uo) is det.
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:- mode test2(in, out, di, uo) is det.
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:- mode test2(out, in, di, uo) is det.
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:- mode test2(out, out, di, uo) 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, io::di, io::uo) is det.
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puts(S) -->
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io.write_string(S), nl.
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