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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.
85 lines
1.9 KiB
Mathematica
85 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 signed 8-bit integers.
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:- module clamp_int8.
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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 int8.
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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(int8)::in, pair(int8)::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(int8)::in, int8::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 = int8.clamp(Min, Max, N)
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then
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ResultStr = int8_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(%d, %d, %d) = %s\n",
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[i8(Min), i8(Max), i8(N), s(ResultStr)], !IO).
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%---------------------------------------------------------------------------%
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:- func numbers = list(int8).
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numbers = [
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-128i8,
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-16i8,
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-10i8,
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-8i8,
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-2i8,
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-1i8,
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0i8,
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1i8,
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2i8,
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8i8,
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10i8,
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16i8,
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127i8
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].
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:- func ranges = list(pair(int8)).
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ranges = [
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-2i8 - 12i8,
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-10i8 - 5i8,
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0i8 - 0i8,
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-1i8 - 1i8,
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5i8 - 10i8,
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12i8 - 6i8
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].
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%---------------------------------------------------------------------------%
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:- end_module clamp_int8.
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%---------------------------------------------------------------------------%
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