Files
mercury/tests/hard_coded/cmp_int64.m
2018-08-30 03:38:16 +10:00

83 lines
2.3 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ft=mercury ts=4 sw=4 et wm=0 tw=0
%---------------------------------------------------------------------------%
% Test comparison operations for signed 64-bit integers.
:- module cmp_int64.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
%---------------------------------------------------------------------------%
%---------------------------------------------------------------------------%
:- implementation.
:- import_module int64.
:- import_module list.
:- import_module string.
%---------------------------------------------------------------------------%
main(!IO) :-
run_cmp_test(unify, "==", !IO),
io.nl(!IO),
run_cmp_test(int64.(<), "<", !IO),
io.nl(!IO),
run_cmp_test(int64.(=<), "=<", !IO),
io.nl(!IO),
run_cmp_test(int64.(>), ">", !IO),
io.nl(!IO),
run_cmp_test(int64.(>=), ">=", !IO).
:- pred run_cmp_test(pred(int64, int64)::in(pred(in, in) is semidet),
string::in, io::di, io::uo) is det.
run_cmp_test(CmpPred, Desc, !IO) :-
io.format("*** Testing int64.'%s' ***\n\n", [s(Desc)], !IO),
As = numbers,
Bs = numbers,
list.foldl(run_cmp_test_2(CmpPred, Desc, Bs), As, !IO).
:- pred run_cmp_test_2(pred(int64, int64)::in(pred(in, in) is semidet),
string::in, list(int64)::in, int64::in, io::di, io::uo) is det.
run_cmp_test_2(CmpPred, Desc, Bs, A, !IO) :-
list.foldl(run_cmp_test_3(CmpPred, Desc, A), Bs, !IO).
:- pred run_cmp_test_3(pred(int64, int64)::in(pred(in, in) is semidet),
string::in, int64::in, int64::in, io::di, io::uo) is det.
run_cmp_test_3(CmpPred, Desc, A, B, !IO) :-
Result = ( if CmpPred(A, B) then "true" else "false" ),
io.format("%s %s %s = %s\n",
[s(int64_to_string(A)), s(Desc), s(int64_to_string(B)), s(Result)],
!IO).
:- func numbers = list(int64).
numbers = [
-9_223_372_036_854_775_808_i64,
-2_147_483_648_i64,
-32_768_i64,
-128_i64,
0_i64,
1_i64,
2_i64,
8_i64,
10_i64,
16_i64,
127_i64,
32_767_i64,
2_147_483_647_i64,
9_223_372_036_854_775_807_i64
].
%---------------------------------------------------------------------------%
:- end_module cmp_int64.
%---------------------------------------------------------------------------%