mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-16 01:43:35 +00:00
018d05ea45
library/list.m:
Make split_upto/4 and take_upto/{2,3} abort for N < 0.
tests/hard_coded/take_split_upto.{m,exp}:
Update this test case to test the for new behaviour.
tests/hard_coded/Mmakefile:
Do not run the take_split_upto test case in deep profiling
grades since it now requires catching exceptions to be supported.
NEWS:
Announce the above change.
106 lines
2.7 KiB
Mathematica
106 lines
2.7 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 list.split_upto/4 and list.take_upto/3.
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:- module take_split_upto.
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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 assoc_list.
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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 maybe.
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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_take_upto_test, tests, !IO),
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io.nl(!IO),
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list.foldl(run_split_upto_test, tests, !IO).
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:- pred run_take_upto_test(pair(int, list(int))::in, io::di, io::uo)
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is cc_multi.
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run_take_upto_test(N - List, !IO) :-
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NStr = describe_int(N),
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io.format("take_upto(%s, %s) ===> ", [s(NStr), s(string(List))], !IO),
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(
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try [] (
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list.take_upto(N, List, Start)
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)
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then
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io.format("%s\n", [s(string(Start))], !IO)
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catch_any _ ->
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io.write_string("<<exception>>\n", !IO)
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).
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:- pred run_split_upto_test(pair(int, list(int))::in, io::di, io::uo)
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is cc_multi.
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run_split_upto_test(N - List, !IO) :-
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NStr = describe_int(N),
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io.format("split_upto(%s, %s) ===> ", [s(NStr), s(string(List))], !IO),
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(
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try [] (
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list.split_upto(N, List, Start, End)
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)
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then
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io.format("(%s, %s)\n", [s(string(Start)), s(string(End))], !IO)
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catch_any _ ->
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io.write_string("<<exception>>\n", !IO)
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).
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%---------------------------------------------------------------------------%
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:- func tests = assoc_list(int, list(int)).
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tests = [
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int.min_int - [],
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int.min_int - [111],
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int.min_int - [111, 222],
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-1 - [],
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-1 - [111],
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-1 - [111, 222],
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0 - [],
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0 - [111],
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0 - [111, 222],
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1 - [],
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1 - [111],
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1 - [111, 222],
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2 - [],
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2 - [111],
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2 - [111, 222],
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2 - [111, 222, 333],
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int.max_int - [],
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int.max_int - [111],
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int.max_int - [111, 222]
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].
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:- func describe_int(int) = string.
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describe_int(N) =
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( if N = int.min_int then
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"int.min_int"
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else if N = int.max_int then
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"int.max_int"
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else
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int_to_string(N)
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).
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%---------------------------------------------------------------------------%
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:- end_module take_split_upto.
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%---------------------------------------------------------------------------%
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