Files
mercury/tests/hard_coded/arith_uint8.m
Julien Fischer 8f71e926d9 Extend fixed-size int tests to cover min/2 and max/2.
tests/hard_coded/arith_int{8,16,32,64}.{m,exp}:
tests/hard_coded/arith_uint{8,16,32,64}.{m,exp}:
    As above.
2026-03-04 01:07:28 +11:00

87 lines
2.4 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ft=mercury ts=4 sw=4 et wm=0 tw=0
%---------------------------------------------------------------------------%
% Test arithmetic operations for unsigned 8-bit integers.
:- module arith_uint8.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is cc_multi.
%---------------------------------------------------------------------------%
%---------------------------------------------------------------------------%
:- implementation.
:- import_module uint8.
:- import_module exception.
:- import_module list.
:- import_module string.
%---------------------------------------------------------------------------%
main(!IO) :-
run_binop_test((func(X, Y) = X + Y), "+", !IO),
io.nl(!IO),
run_binop_test((func(X, Y) = X - Y), "-", !IO),
io.nl(!IO),
run_binop_test((func(X, Y) = X * Y), "*", !IO),
io.nl(!IO),
run_binop_test((func(X, Y) = X / Y), "/", !IO),
io.nl(!IO),
run_binop_test((func(X, Y) = X rem Y), "rem", !IO),
io.nl(!IO),
run_binop_test(uint8.max, "max", !IO),
io.nl(!IO),
run_binop_test(uint8.min, "min", !IO).
:- pred run_binop_test((func(uint8, uint8) = uint8)::in, string::in,
io::di, io::uo) is cc_multi.
run_binop_test(BinOpFunc, Desc, !IO) :-
io.format("*** Test binary operation '%s' ***\n\n", [s(Desc)], !IO),
As = numbers,
Bs = numbers,
list.foldl(run_binop_test_2(BinOpFunc, Desc, Bs), As, !IO).
:- pred run_binop_test_2((func(uint8, uint8) = uint8)::in, string::in,
list(uint8)::in, uint8::in, io::di, io::uo) is cc_multi.
run_binop_test_2(BinOpFunc, Desc, Bs, A, !IO) :-
list.foldl(run_binop_test_3(BinOpFunc, Desc, A), Bs, !IO).
:- pred run_binop_test_3((func(uint8, uint8) = uint8)::in, string::in,
uint8::in, uint8::in, io::di, io::uo) is cc_multi.
run_binop_test_3(BinOpFunc, Desc, A, B, !IO) :-
( try []
Result0 = BinOpFunc(A, B)
then
ResultStr = uint8_to_string(Result0)
catch_any _ ->
ResultStr = "<<exception>>"
),
io.format("%s %s %s = %s\n",
[s(uint8_to_string(A)), s(Desc), s(uint8_to_string(B)), s(ResultStr)],
!IO).
:- func numbers = list(uint8).
numbers = [
0u8,
1u8,
2u8,
8u8,
10u8,
16u8,
255u8
].
%---------------------------------------------------------------------------%
:- end_module arith_uint8.
%---------------------------------------------------------------------------%