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https://github.com/Mercury-Language/mercury.git
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33eb3028f5
tests/accumulator/*.m:
tests/analysis_*/*.m:
tests/benchmarks*/*.m:
tests/debugger*/*.{m,exp,inp}:
tests/declarative_debugger*/*.{m,exp,inp}:
tests/dppd*/*.m:
tests/exceptions*/*.m:
tests/general*/*.m:
tests/grade_subdirs*/*.m:
tests/hard_coded*/*.m:
Make these tests use four-space indentation, and ensure that
each module is imported on its own line. (I intend to use the latter
to figure out which subdirectories' tests can be executed in parallel.)
These changes usually move code to different lines. For the debugger tests,
specify the new line numbers in .inp files and expect them in .exp files.
84 lines
1.6 KiB
Mathematica
84 lines
1.6 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module family.
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:- interface.
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:- import_module io.
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:- pred main(io__state::di, io__state::uo) is det.
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:- implementation.
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main -->
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{
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half_siblings(b, c)
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->
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Msg = "Ok"
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;
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Msg = "Missing answer: half_siblings(b, c)"
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},
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io__write_string(Msg),
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io__nl.
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:- type person
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---> a
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; b
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; c
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; m
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; f
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; s.
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:- pred parent(person, person).
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:- mode parent(out, out) is multi.
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:- mode parent(in, out) is nondet.
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parent(m, a).
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parent(m, b).
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parent(f, a).
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parent(f, b).
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parent(f, c).
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parent(s, c).
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:- pred male(person::in) is semidet.
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male(f).
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male(s).
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:- pred female(person::in) is semidet.
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female(X) :-
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\+ male(X).
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:- pred common_mother(person::out, person::out) is nondet.
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:- pred common_father(person::out, person::out) is nondet.
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common_mother(A, B) :-
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parent(M, A),
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parent(M, B),
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\+ A = B,
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female(M).
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common_father(A, B) :-
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parent(F, A),
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parent(A, B), % Oops, that's a bug.
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\+ A = B,
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male(F).
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:- pred siblings(person::out, person::out) is nondet.
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siblings(A, B) :-
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common_mother(A, B).
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siblings(A, B) :-
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common_father(A, B).
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:- pred full_siblings(person::out, person::out) is nondet.
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full_siblings(A, B) :-
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common_mother(A, B),
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common_father(A, B).
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:- pred half_siblings(person::out, person::out) is nondet.
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half_siblings(A, B) :-
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siblings(A, B),
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\+ full_siblings(A, B).
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