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https://github.com/Mercury-Language/mercury.git
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b049a5c3db
array.resize/4 has inconsistent behaviour across backends if its first argument
is negative; make it throw an exception if the first argument is negative.
library/array.m:
As above.
NEWS:
Announce the change.
tests/hard_coded/Mmakefile:
tests/hard_coded/array_resize.{m,exp}:
Add a more extensive test case for array.resize.
92 lines
3.5 KiB
Mathematica
92 lines
3.5 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ft=mercury ts=4 sw=4 et
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%---------------------------------------------------------------------------%
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%
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% Test array.resize/3.
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%
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%---------------------------------------------------------------------------%
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:- module array_resize.
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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 array.
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:- import_module exception.
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:- import_module list.
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:- type fruit
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---> orange
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; lemon
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; apple
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; pear
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; pineapple.
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:- type color
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---> color(uint8, uint8, uint8).
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main(!IO) :-
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test_resize([1, 2, 3, 4], -1, 42, !IO), % Should raise exception.
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test_resize([1, 2, 3, 4], 0, 42, !IO),
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test_resize([1, 2, 3, 4], 3, 42, !IO),
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test_resize([1, 2, 3, 4], 4, 42, !IO),
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test_resize([1, 2, 3, 4], 5, 42, !IO),
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test_resize([1i8, 2i8, 3i8, 4i8], 3, 42i8, !IO),
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test_resize([1i8, 2i8, 3i8, 4i8], 6, 42i8, !IO),
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test_resize([1u8, 2u8, 3u8, 4u8], 3, 42u8, !IO),
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test_resize([1u8, 2u8, 3u8, 4u8], 6, 42u8, !IO),
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test_resize([1i16, 2i16, 3i16, 4i16], 3, 42i16, !IO),
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test_resize([1i16, 2i16, 3i16, 4i16], 6, 42i16, !IO),
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test_resize([1u16, 2u16, 3u16, 4u16], 3, 42u16, !IO),
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test_resize([1u16, 2u16, 3u16, 4u16], 6, 42u16, !IO),
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test_resize([1i32, 2i32, 3i32, 4i32], 3, 42i32, !IO),
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test_resize([1i32, 2i32, 3i32, 4i32], 6, 42i32, !IO),
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test_resize([1u32, 2u32, 3u32, 4u32], 3, 42u32, !IO),
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test_resize([1u32, 2u32, 3u32, 4u32], 6, 42u32, !IO),
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test_resize([1i64, 2i64, 3i64, 4i64], 3, 42i64, !IO),
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test_resize([1i64, 2i64, 3i64, 4i64], 6, 42i64, !IO),
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test_resize([1u64, 2u64, 3u64, 4u64], 3, 42u64, !IO),
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test_resize([1u64, 2u64, 3u64, 4u64], 6, 42u64, !IO),
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test_resize([1.0, 2.0, 3.0, 4.0], 3, 42.0, !IO),
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test_resize([1.0, 2.0, 3.0, 4.0], 36, 42.0, !IO),
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test_resize(["one", "two", "three", "four"], 3, "forty-two", !IO),
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test_resize([1.0, 2.0, 3.0, 4.0], 6, 42.0, !IO),
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test_resize(['a', 'b', 'c', 'd'], 3, 'X', !IO),
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test_resize(['a', 'b', 'c', 'd'], 6, 'X', !IO),
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test_resize([orange, lemon, apple, pear], 3, pineapple, !IO),
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test_resize([orange, lemon, apple, pear], 6, pineapple, !IO),
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test_resize([color(1u8, 1u8, 1u8), color(2u8, 2u8, 2u8),
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color(3u8, 3u8, 3u8), color(4u8, 4u8, 4u8)], 3, color(0u8, 0u8, 0u8), !IO),
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test_resize([color(1u8, 1u8, 1u8), color(2u8, 2u8, 2u8),
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color(3u8, 3u8, 3u8), color(4u8, 4u8, 4u8)], 6, color(0u8, 0u8, 0u8), !IO),
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test_resize([[1], [2, 2], [3, 3, 3], [4, 4, 4, 4]], 3, [42], !IO),
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test_resize([[1], [2, 2], [3, 3, 3], [4, 4, 4, 4]], 6, [42], !IO).
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:- pred test_resize(list(T)::in, int::in, T::in, io::di, io::uo) is cc_multi.
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test_resize(Elems, Size, Init, !IO) :-
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io.write_string("================\n", !IO),
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array.from_list(Elems, Array0),
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io.write_string("Array0 = ", !IO),
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io.write_line(Array0, !IO),
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io.write_string("Size = ", !IO),
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io.write_line(Size, !IO),
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io.write_string("Init = ", !IO),
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io.write_line(Init, !IO),
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( try [] (
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array.resize(Size, Init, Array0, Array)
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) then
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io.write_string("Array = ", !IO),
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io.write_line(Array, !IO)
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catch software_error(S) ->
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io.write_string("EXCEPTION: ", !IO),
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io.write_line(S, !IO)
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).
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