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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.
86 lines
2.1 KiB
Mathematica
86 lines
2.1 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 64-bit integers.
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:- module clamp_int64.
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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 int64.
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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(int64)::in, pair(int64)::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(int64)::in, int64::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 = int64.clamp(Min, Max, N)
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then
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ResultStr = int64_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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[i64(Min), i64(Max), i64(N), s(ResultStr)], !IO).
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%---------------------------------------------------------------------------%
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:- func numbers = list(int64).
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numbers = [
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-9_223_372_036_854_775_808_i64,
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-2_147_483_648_i64,
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-64_768_i64,
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-128_i64,
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0_i64,
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1_i64,
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2_i64,
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8_i64,
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10_i64,
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16_i64,
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127_i64,
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64_767_i64,
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2_147_483_647_i64,
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9_223_372_036_854_775_807_i64
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].
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:- func ranges = list(pair(int64)).
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ranges = [
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-2i64 - 12i64,
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-10i64 - 5i64,
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0i64 - 0i64,
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-1i64 - 1i64,
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5i64 - 10i64,
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12i64 - 6i64
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].
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%---------------------------------------------------------------------------%
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:- end_module clamp_int64.
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%---------------------------------------------------------------------------%
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