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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.
84 lines
1.9 KiB
Mathematica
84 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 for word-sized signed integers.
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:- module clamp_int.
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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 int.
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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(int)::in, pair(int)::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(int)::in, int::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 = int.clamp(Min, Max, N)
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then
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ResultStr = int_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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[i(Min), i(Max), i(N), s(ResultStr)], !IO).
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%---------------------------------------------------------------------------%
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:- func numbers = list(int).
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numbers = [
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-2_147_483_648,
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-32_768,
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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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32_767,
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2_147_483_647
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].
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:- func ranges = list(pair(int)).
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ranges = [
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-2 - 12,
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-10 - 5,
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0 - 0,
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-1 - 1,
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5 - 10,
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12 - 6
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].
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%---------------------------------------------------------------------------%
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:- end_module clamp_int.
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%---------------------------------------------------------------------------%
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