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1f6d83692a
tests/hard_coded/*.m:
Update programming style, unless doing so would change
the meaning of the test, in particular:
- use '.' as a module qualifier in place of '__'
- use {write,print}_line where appropriate
- use if-then-else in place of C -> T ; E
- use state variables in place of DCGs
tests/hard_coded/dir_test.m:
Document what the expected outputs correspond to.
Use a uniform module qualifier in the output.
tests/hard_coded/dir_test.exp*:
Conform to the above change.
37 lines
1.0 KiB
Mathematica
37 lines
1.0 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module higher_order_func_test.
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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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:- import_module int.
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:- import_module list.
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main(!IO) :-
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L1 = [1, 2, 3],
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L2 = my_map((func(X::in) = (Y::out) is det :- Y = 2*X), L1),
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L3 = my_map((func(X2) = Y2 :- Y2 = 5*X2), L2),
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L = my_map(func(X3) = 10*X3, L3),
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list.foldl(output_int_and_string(" "), L, !IO),
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io.nl(!IO).
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:- func my_map(func(X) = Y, list(X)) = list(Y).
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:- mode my_map(func(in) = out is det, in) = out is det.
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:- mode my_map(func(in) = out is semidet, in) = out is semidet.
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my_map(_, []) = [].
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my_map(F, [H0 | T0]) = [apply(F, H0) | my_map(F, T0)].
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:- pred output_int_and_string(string::in, int::in, io::di, io::uo) is det.
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output_int_and_string(Str, N, !IO) :-
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io.write_int(N, !IO),
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io.write_string(Str, !IO).
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