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https://github.com/Mercury-Language/mercury.git
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c23ace77c8
library/int8.m:
library/int16.m:
library/int32.m:
Implement abs/1, unchecked_abs/1 and nabs/1 for int8, in16 and int32.
tests/hard_coded/arith_int{8,16,32}.{m,exp}:
Extend these tests to cover abs and nabs.
122 lines
3.5 KiB
Mathematica
122 lines
3.5 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 arithmetic operations for signed 32-bit integers.
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:- module arith_int32.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is cc_multi.
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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 exception.
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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_unop_test(int32.(+), "+", !IO),
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io.nl(!IO),
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run_unop_test(int32.(-), "-", !IO),
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io.nl(!IO),
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run_unop_test(int32.abs, "abs", !IO),
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io.nl(!IO),
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run_unop_test(int32.nabs, "nabs", !IO),
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io.nl(!IO),
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run_binop_test((func(X, Y) = X + Y), "+", !IO),
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io.nl(!IO),
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run_binop_test((func(X, Y) = X - Y), "-", !IO),
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io.nl(!IO),
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run_binop_test((func(X, Y) = X * Y), "*", !IO),
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io.nl(!IO),
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run_binop_test((func(X, Y) = X / Y), "/", !IO),
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io.nl(!IO),
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run_binop_test((func(X, Y) = X rem Y), "rem", !IO).
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%---------------------------------------------------------------------------%
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:- pred run_unop_test((func(int32) = int32)::in, string::in,
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io::di, io::uo) is cc_multi.
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run_unop_test(UnOpFunc, Desc, !IO) :-
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io.format("*** Test unary operation '%s' ***\n\n", [s(Desc)], !IO),
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As = numbers,
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list.foldl(run_unop_test_2(UnOpFunc, Desc), As, !IO).
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:- pred run_unop_test_2((func(int32) = int32)::in, string::in, int32::in,
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io::di, io::uo) is cc_multi.
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run_unop_test_2(UnOpFunc, Desc, A, !IO) :-
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( try []
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Result0 = UnOpFunc(A)
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then
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ResultStr = int32_to_string(Result0)
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catch_any _ ->
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ResultStr = "<<exception>>"
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),
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io.format("%s %s = %s\n",
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[s(Desc), s(int32_to_string(A)), s(ResultStr)], !IO).
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%---------------------------------------------------------------------------%
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:- pred run_binop_test((func(int32, int32) = int32)::in, string::in,
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io::di, io::uo) is cc_multi.
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run_binop_test(BinOpFunc, Desc, !IO) :-
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io.format("*** Test binary operation '%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_binop_test_2(BinOpFunc, Desc, Bs), As, !IO).
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:- pred run_binop_test_2((func(int32, int32) = int32)::in, string::in,
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list(int32)::in, int32::in, io::di, io::uo) is cc_multi.
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run_binop_test_2(BinOpFunc, Desc, Bs, A, !IO) :-
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list.foldl(run_binop_test_3(BinOpFunc, Desc, A), Bs, !IO).
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:- pred run_binop_test_3((func(int32, int32) = int32)::in, string::in,
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int32::in, int32::in, io::di, io::uo) is cc_multi.
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run_binop_test_3(BinOpFunc, Desc, A, B, !IO) :-
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( try []
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Result0 = BinOpFunc(A, B)
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then
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ResultStr = int32_to_string(Result0)
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catch_any _ ->
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ResultStr = "<<exception>>"
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),
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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(ResultStr)],
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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 arith_int32.
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%---------------------------------------------------------------------------%
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