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81 lines
2.2 KiB
Mathematica
81 lines
2.2 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ft=mercury ts=4 sw=4 et wm=0 tw=0
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%---------------------------------------------------------------------------%
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% Test comparison operations for signed 32-bit integers.
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:- module cmp_int32.
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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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%---------------------------------------------------------------------------%
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%---------------------------------------------------------------------------%
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:- implementation.
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:- import_module int32.
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:- import_module list.
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:- import_module string.
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%---------------------------------------------------------------------------%
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main(!IO) :-
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run_cmp_test(unify, "==", !IO),
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io.nl(!IO),
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run_cmp_test(int32.(<), "<", !IO),
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io.nl(!IO),
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run_cmp_test(int32.(=<), "=<", !IO),
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io.nl(!IO),
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run_cmp_test(int32.(>), ">", !IO),
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io.nl(!IO),
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run_cmp_test(int32.(>=), ">=", !IO).
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:- pred run_cmp_test(pred(int32, int32)::in(pred(in, in) is semidet),
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string::in, io::di, io::uo) is det.
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run_cmp_test(CmpPred, Desc, !IO) :-
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io.format("*** Testing int32.'%s' ***\n\n", [s(Desc)], !IO),
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As = numbers,
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Bs = numbers,
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list.foldl(run_cmp_test_2(CmpPred, Desc, Bs), As, !IO).
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:- pred run_cmp_test_2(pred(int32, int32)::in(pred(in, in) is semidet),
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string::in, list(int32)::in, int32::in, io::di, io::uo) is det.
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run_cmp_test_2(CmpPred, Desc, Bs, A, !IO) :-
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list.foldl(run_cmp_test_3(CmpPred, Desc, A), Bs, !IO).
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:- pred run_cmp_test_3(pred(int32, int32)::in(pred(in, in) is semidet),
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string::in, int32::in, int32::in, io::di, io::uo) is det.
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run_cmp_test_3(CmpPred, Desc, A, B, !IO) :-
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Result = ( if CmpPred(A, B) then "true" else "false" ),
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io.format("%s %s %s = %s\n",
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[s(int32_to_string(A)), s(Desc), s(int32_to_string(B)), s(Result)],
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!IO).
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:- func numbers = list(int32).
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numbers = [
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-2_147_483_648_i32,
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-32_768_i32,
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-128_i32,
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0_i32,
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1_i32,
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2_i32,
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8_i32,
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10_i32,
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16_i32,
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127_i32,
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32_767_i32,
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2_147_483_647_i32
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].
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%---------------------------------------------------------------------------%
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:- end_module cmp_int32.
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%---------------------------------------------------------------------------%
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