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https://github.com/Mercury-Language/mercury.git
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2f39008fbf
Fix a bug in int -> uint32 conversion for the C grades.
tests/Mmakefile:
tests/hard_coded/from_int_int32.{m,exp}:
tests/hard_coded/from_int_uint32.m:
Add the above tests.
tests/hard_coded/from_int_uint32.exp:
Expected output for machines with a 64-bit int type.
tests/hard_coded/from_int_uint32.exp2:
Expected output for machines with a 32-bit int type.
library/uint32.m:
Fix a bug in the definition of from_int/2. On machines where Mercury has
a 64-bit int type the conversion should succeed for inputs up to (and
including) UINT32_MAX.
66 lines
1.5 KiB
Mathematica
66 lines
1.5 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 converson of Mercury ints to signed 32-bit integers.
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:- module from_int_int32.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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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 list.
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:- import_module string.
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%---------------------------------------------------------------------------%
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main(!IO) :-
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list.foldl(do_test, numbers, !IO).
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:- pred do_test(string::in, io::di, io::uo) is det.
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do_test(IntStr, !IO) :-
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io.format("from_int(%s) = ", [s(IntStr)], !IO),
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( if
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string.to_int(IntStr, Int),
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int32.from_int(Int, Int32)
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then
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io.format("%s\n", [s(int32_to_string(Int32))], !IO)
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else
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io.write_string("<<out-of-range>>\n", !IO)
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).
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:- func numbers = list(string).
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numbers = [
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"-9223372036854775808",
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"-2147483649",
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"-2147483648",
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"-32768",
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"-128",
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"0",
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"1",
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"2",
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"8",
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"10",
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"16",
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"127",
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"32767",
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"2147483647",
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"2147483648",
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"9223372036854775807"
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].
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%---------------------------------------------------------------------------%
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:- end_module from_int_int32.
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%---------------------------------------------------------------------------%
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