Files
mercury/tests/hard_coded/integer_int8_conv.m
Julien Fischer 9845ffdcb8 Add tests of integer -> int{8,16,32} conversion.
tests/hard_coded/Mmakefile:
tests/hard_coded/integer_int8_conv.{m,exp}:
tests/hard_coded/integer_int16_conv.{m,exp}:
tests/hard_coded/integer_int32_conv.{m,exp}:
    As above.
2017-09-14 09:23:53 -04:00

98 lines
2.5 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ft=mercury ts=4 sw=4 et wm=0 tw=0
%---------------------------------------------------------------------------%
% Test conversion of int8s to integers and integers to int8s.
:- module integer_int8_conv.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
%---------------------------------------------------------------------------%
%---------------------------------------------------------------------------%
:- implementation.
:- import_module int.
:- import_module list.
:- import_module integer.
:- import_module int8.
%---------------------------------------------------------------------------%
main(!IO) :-
io.write_string("*** Testing int8 -> integer conversion ***\n\n", !IO),
list.foldl(do_to_integer_test, test_int8s, !IO),
io.nl(!IO),
io.write_string("*** Testing integer -> int8 conversion ***\n\n", !IO),
list.foldl(do_from_integer_test, test_integers, !IO).
:- pred do_to_integer_test(int8::in, io::di, io::uo) is det.
do_to_integer_test(U, !IO) :-
Integer = integer.from_int8(U),
io.write_string("int8 = ", !IO),
io.write_int8(U, !IO),
io.write_string(", integer = ", !IO),
io.print(Integer, !IO),
io.nl(!IO).
:- pred do_from_integer_test(integer::in, io::di, io::uo) is det.
do_from_integer_test(Integer, !IO) :-
io.write_string("integer = ", !IO),
io.print(Integer, !IO),
io.write_string(", int8 = ", !IO),
( if integer.to_int8(Integer, U) then
io.write_int8(U, !IO)
else
io.write_string("<<OUT-OF-RANGE>>", !IO)
),
io.nl(!IO).
:- func test_int8s = list(int8).
test_int8s = [
-128i8,
-64i8,
-32i8,
-1i8,
0i8,
1i8,
2i8,
4i8,
8i8,
10i8,
16i8,
32i8,
64i8,
127i8
].
:- func test_integers = list(integer).
test_integers = [
det_from_string("-9223372036854775808"),
det_from_string("-4294967296"),
det_from_string("-2147483648"),
det_from_string("-2"),
det_from_string("-1"),
det_from_string("0"),
det_from_string("1"),
det_from_string("2"),
det_from_string("16383"),
det_from_string("16384"),
det_from_string("16385"),
det_from_string("1073741824"),
det_from_string("2147483648"),
det_from_string("4294967295"),
det_from_string("4294967296"),
det_from_string("4294967297"),
det_from_string("9223372036854775808"),
det_from_string("18446744073709551615"),
det_from_string("18446744073709551616")
].