//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// <chrono>
// class ambiguous_local_time
//
// template<class Duration>
// ambiguous_local_time(const local_time<Duration>& tp, const local_info& i);
#include <chrono>
#include <string_view>
#include "assert_macros.h"
#include "concat_macros.h"
template <class Duration>
static void
test(const std::chrono::local_time<Duration>& tp, const std::chrono::local_info& i, std::string_view expected) {
std::chrono::ambiguous_local_time exception{tp, i};
std::string_view result = exception.what();
TEST_REQUIRE(result == expected,
TEST_WRITE_CONCATENATED("Expected output\n", expected, "\n\nActual output\n", result, '\n'));
}
// The constructor constructs the runtime_error base class with a specific
// message. This implicitly tests what() too, since that is inherited from
// runtime_error there is no separate test for what().
int main(int, char**) {
using namespace std::literals::chrono_literals;
// There is no requirement on the ordering of PREV and NEXT so an "invalid"
// overlap is allowed. All tests with negative dates use the same order as
// positive tests.
test(std::chrono::local_time<std::chrono::nanoseconds>{-1ns},
std::chrono::local_info{
std::chrono::local_info::ambiguous,
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::January / 1 / 1970},
std::chrono::sys_days{std::chrono::March / 1 / 1970},
1h,
60min,
"PREV"},
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::September / 1 / 1969},
std::chrono::sys_days{std::chrono::December / 31 / 1969} + 23h,
0s,
0min,
"NEXT"}
},
R"(1969-12-31 23:59:59.999999999 is ambiguous. It could be
1969-12-31 23:59:59.999999999 PREV == 1969-12-31 22:59:59.999999999 UTC or
1969-12-31 23:59:59.999999999 NEXT == 1969-12-31 23:59:59.999999999 UTC)");
test(std::chrono::local_time<std::chrono::microseconds>{0us},
std::chrono::local_info{
std::chrono::local_info::ambiguous,
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::January / 1 / 1970},
std::chrono::sys_days{std::chrono::March / 1 / 1970},
1h,
60min,
"PREV"},
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::September / 1 / 1969},
std::chrono::sys_days{std::chrono::December / 31 / 1969} + 23h,
0s,
0min,
"NEXT"}},
R"(1970-01-01 00:00:00.000000 is ambiguous. It could be
1970-01-01 00:00:00.000000 PREV == 1969-12-31 23:00:00.000000 UTC or
1970-01-01 00:00:00.000000 NEXT == 1970-01-01 00:00:00.000000 UTC)");
test(std::chrono::local_time<std::chrono::milliseconds>{1ms},
std::chrono::local_info{
std::chrono::local_info::ambiguous,
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::January / 1 / 1970},
std::chrono::sys_days{std::chrono::March / 1 / 1970},
1h,
60min,
"PREV"},
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::September / 1 / 1969},
std::chrono::sys_days{std::chrono::December / 31 / 1969} + 23h,
0s,
0min,
"NEXT"}},
R"(1970-01-01 00:00:00.001 is ambiguous. It could be
1970-01-01 00:00:00.001 PREV == 1969-12-31 23:00:00.001 UTC or
1970-01-01 00:00:00.001 NEXT == 1970-01-01 00:00:00.001 UTC)");
test(std::chrono::local_seconds{(std::chrono::sys_days{std::chrono::January / 1 / -21970}).time_since_epoch()},
std::chrono::local_info{
std::chrono::local_info::ambiguous,
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::September / 1 / -21969},
std::chrono::sys_days{std::chrono::December / 31 / -21969},
0s,
0min,
"PREV"},
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::January / 1 / -21970},
std::chrono::sys_days{std::chrono::March / 1 / -21970} + 23h,
1h,
60min,
"NEXT"}},
R"(-21970-01-01 00:00:00 is ambiguous. It could be
-21970-01-01 00:00:00 PREV == -21970-01-01 00:00:00 UTC or
-21970-01-01 00:00:00 NEXT == -21971-12-31 23:00:00 UTC)");
test(
std::chrono::local_time<std::chrono::days>{
(std::chrono::sys_days{std::chrono::January / 1 / 21970}).time_since_epoch()},
std::chrono::local_info{
std::chrono::local_info::ambiguous,
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::September / 1 / 21969},
std::chrono::sys_days{std::chrono::December / 31 / 21969},
0s,
0min,
"PREV"},
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::January / 1 / 21970},
std::chrono::sys_days{std::chrono::March / 1 / 21970} + 23h,
1h,
60min,
"NEXT"}},
R"(21970-01-01 is ambiguous. It could be
21970-01-01 PREV == 21970-01-01 00:00:00 UTC or
21970-01-01 NEXT == 21969-12-31 23:00:00 UTC)");
test(std::chrono::local_time<std::chrono::weeks>{},
std::chrono::local_info{
std::chrono::local_info::ambiguous,
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::September / 1 / 1969},
std::chrono::sys_days{std::chrono::December / 31 / 1969},
0s,
0min,
"PREV"},
std::chrono::sys_info{
std::chrono::sys_days{std::chrono::January / 1 / 1970},
std::chrono::sys_days{std::chrono::March / 1 / 1970} + 23h,
1h,
60min,
"NEXT"}},
R"(1970-01-01 is ambiguous. It could be
1970-01-01 PREV == 1970-01-01 00:00:00 UTC or
1970-01-01 NEXT == 1969-12-31 23:00:00 UTC)");
// Note months and years can not be streamed.
return 0;
}
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