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https://github.com/Mercury-Language/mercury.git
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a194e47c33
library/int.m:
library/int{8,16,64}.m:
library/uint.m:
library/uint(8,16,32,64}.m:
Add the new function.
NEWS.md:
Announce the additions.
tests/hard_coded/Mmakefile:
tests/hard_coded/clamp_int*.{m,exp}:
tests/hard_coded/clamp_uint*.{m,exp}:
Add tests for the new functions.
tests/hard_coded/string_code_point.m:
Avoid an ambiguity due to this module defining its own version of clamp/3.
XXX we should replace the local one with a call to int.clamp/3, but this
module constructs ranges where Max < Min and aborts with the new one.
80 lines
1.9 KiB
Mathematica
80 lines
1.9 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 clamp/3 unsigned 8-bit integers.
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:- module clamp_uint8.
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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 exception.
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:- import_module uint8.
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:- import_module list.
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:- import_module pair.
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:- import_module string.
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%---------------------------------------------------------------------------%
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main(!IO) :-
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list.foldl(run_clamp_test(numbers), ranges, !IO).
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:- pred run_clamp_test(list(uint8)::in, pair(uint8)::in, io::di, io::uo)
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is cc_multi.
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run_clamp_test(Numbers, Range, !IO) :-
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list.foldl(run_clamp_test_2(Range), Numbers, !IO).
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:- pred run_clamp_test_2(pair(uint8)::in, uint8::in, io::di, io::uo)
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is cc_multi.
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run_clamp_test_2(Range, N, !IO) :-
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Range = Min - Max,
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( try []
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Result = uint8.clamp(Min, Max, N)
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then
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ResultStr = uint8_to_string(Result)
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catch_any _ ->
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ResultStr = "<<exception>>"
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),
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io.format("clamp(%u, %u, %u) = %s\n",
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[u8(Min), u8(Max), u8(N), s(ResultStr)], !IO).
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%---------------------------------------------------------------------------%
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:- func numbers = list(uint8).
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numbers = [
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0u8,
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1u8,
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2u8,
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8u8,
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10u8,
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16u8,
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127u8,
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128u8,
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255u8
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].
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:- func ranges = list(pair(uint8)).
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ranges = [
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0u8 - 0u8,
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0u8 - 5u8,
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5u8 - 10u8,
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0u8 - 255u8,
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12u8 - 6u8
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].
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%---------------------------------------------------------------------------%
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:- end_module clamp_uint8.
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%---------------------------------------------------------------------------%
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