[libc++][chrono] implements GPS clock. (#125921)

Completes:
- LWG3359 <chrono> leap second support should allow for negative leap
seconds
- P1361R2 Integration of chrono with text formatting

Implements parts of:
- P0355 Extending <chrono> to Calendars and Time Zones

Fixes: #100432
Fixes: #100014
This commit is contained in:
Mark de Wever 2025-02-21 17:50:01 +01:00 committed by GitHub
parent 5a7ee431fd
commit cf50936b23
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21 changed files with 1870 additions and 5 deletions

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@ -39,6 +39,7 @@ Implemented Papers
------------------
- N4258: Cleaning-up noexcept in the Library (`Github <https://github.com/llvm/llvm-project/issues/99937>`__)
- P1361R2: Integration of chrono with text formatting (`Github <https://github.com/llvm/llvm-project/issues/100014>`__)
Improvements and New Features
-----------------------------

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@ -269,7 +269,7 @@
"`LWG3355 <https://wg21.link/LWG3355>`__","The memory algorithms should support move-only input iterators introduced by P1207","2020-02 (Prague)","|Complete|","15",""
"`LWG3356 <https://wg21.link/LWG3356>`__","``__cpp_lib_nothrow_convertible``\ should be ``__cpp_lib_is_nothrow_convertible``\ ","2020-02 (Prague)","|Complete|","12",""
"`LWG3358 <https://wg21.link/LWG3358>`__","|sect|\ [span.cons] is mistaken that ``to_address``\ can throw","2020-02 (Prague)","|Complete|","17",""
"`LWG3359 <https://wg21.link/LWG3359>`__","``<chrono>``\ leap second support should allow for negative leap seconds","2020-02 (Prague)","|In Progress|","",""
"`LWG3359 <https://wg21.link/LWG3359>`__","``<chrono>``\ leap second support should allow for negative leap seconds","2020-02 (Prague)","|Complete|","21",""
"`LWG3360 <https://wg21.link/LWG3360>`__","``three_way_comparable_with``\ is inconsistent with similar concepts","2020-02 (Prague)","|Nothing To Do|","",""
"`LWG3362 <https://wg21.link/LWG3362>`__","Strike ``stop_source``\ 's ``operator!=``\ ","2020-02 (Prague)","|Complete|","17",""
"`LWG3363 <https://wg21.link/LWG3363>`__","``drop_while_view``\ should opt-out of ``sized_range``\ ","2020-02 (Prague)","|Nothing To Do|","",""

1 Issue # Issue Name Meeting Status First released version Notes
269 `LWG3355 <https://wg21.link/LWG3355>`__ The memory algorithms should support move-only input iterators introduced by P1207 2020-02 (Prague) |Complete| 15
270 `LWG3356 <https://wg21.link/LWG3356>`__ ``__cpp_lib_nothrow_convertible``\ should be ``__cpp_lib_is_nothrow_convertible``\ 2020-02 (Prague) |Complete| 12
271 `LWG3358 <https://wg21.link/LWG3358>`__ |sect|\ [span.cons] is mistaken that ``to_address``\ can throw 2020-02 (Prague) |Complete| 17
272 `LWG3359 <https://wg21.link/LWG3359>`__ ``<chrono>``\ leap second support should allow for negative leap seconds 2020-02 (Prague) |In Progress| |Complete| 21
273 `LWG3360 <https://wg21.link/LWG3360>`__ ``three_way_comparable_with``\ is inconsistent with similar concepts 2020-02 (Prague) |Nothing To Do|
274 `LWG3362 <https://wg21.link/LWG3362>`__ Strike ``stop_source``\ 's ``operator!=``\ 2020-02 (Prague) |Complete| 17
275 `LWG3363 <https://wg21.link/LWG3363>`__ ``drop_while_view``\ should opt-out of ``sized_range``\ 2020-02 (Prague) |Nothing To Do|

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@ -115,7 +115,7 @@
"`P1207R4 <https://wg21.link/P1207R4>`__","Movability of Single-pass Iterators","2019-07 (Cologne)","|Complete|","15",""
"`P1208R6 <https://wg21.link/P1208R6>`__","Adopt source_location for C++20","2019-07 (Cologne)","|Complete|","16",""
"`P1355R2 <https://wg21.link/P1355R2>`__","Exposing a narrow contract for ceil2","2019-07 (Cologne)","|Complete|","9",""
"`P1361R2 <https://wg21.link/P1361R2>`__","Integration of chrono with text formatting","2019-07 (Cologne)","|Partial|","",""
"`P1361R2 <https://wg21.link/P1361R2>`__","Integration of chrono with text formatting","2019-07 (Cologne)","|Complete|","21",""
"`P1423R3 <https://wg21.link/P1423R3>`__","char8_t backward compatibility remediation","2019-07 (Cologne)","|Complete|","15",""
"`P1424R1 <https://wg21.link/P1424R1>`__","'constexpr' feature macro concerns","2019-07 (Cologne)","|Nothing To Do|","","Superseded by `P1902 <https://wg21.link/P1902>`__"
"`P1466R3 <https://wg21.link/P1466R3>`__","Miscellaneous minor fixes for chrono","2019-07 (Cologne)","|Partial|","",""

1 Paper # Paper Name Meeting Status First released version Notes
115 `P1207R4 <https://wg21.link/P1207R4>`__ Movability of Single-pass Iterators 2019-07 (Cologne) |Complete| 15
116 `P1208R6 <https://wg21.link/P1208R6>`__ Adopt source_location for C++20 2019-07 (Cologne) |Complete| 16
117 `P1355R2 <https://wg21.link/P1355R2>`__ Exposing a narrow contract for ceil2 2019-07 (Cologne) |Complete| 9
118 `P1361R2 <https://wg21.link/P1361R2>`__ Integration of chrono with text formatting 2019-07 (Cologne) |Partial| |Complete| 21
119 `P1423R3 <https://wg21.link/P1423R3>`__ char8_t backward compatibility remediation 2019-07 (Cologne) |Complete| 15
120 `P1424R1 <https://wg21.link/P1424R1>`__ 'constexpr' feature macro concerns 2019-07 (Cologne) |Nothing To Do| Superseded by `P1902 <https://wg21.link/P1902>`__
121 `P1466R3 <https://wg21.link/P1466R3>`__ Miscellaneous minor fixes for chrono 2019-07 (Cologne) |Partial|

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@ -4,7 +4,7 @@ Section,Description,Dependencies,Assignee,Status,First released version
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::sys_time<Duration>``",,Mark de Wever,|Complete|,17
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::utc_time<Duration>``",,Mark de Wever,|Complete|,20
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::tai_time<Duration>``",,Mark de Wever,|Complete|,21
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::gps_time<Duration>``",A ``<chrono>`` implementation,Mark de Wever,,,
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::gps_time<Duration>``",,Mark de Wever,|Complete|,21
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::file_time<Duration>``",,Mark de Wever,|Complete|,17
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::local_time<Duration>``",,Mark de Wever,|Complete|,17
`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::local-time-format-t<Duration>``",,,|Nothing To Do|,

Can't render this file because it has a wrong number of fields in line 2.

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@ -256,6 +256,7 @@ set(files
__chrono/exception.h
__chrono/file_clock.h
__chrono/formatter.h
__chrono/gps_clock.h
__chrono/hh_mm_ss.h
__chrono/high_resolution_clock.h
__chrono/leap_second.h

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@ -15,6 +15,7 @@
#include <__chrono/day.h>
#include <__chrono/duration.h>
#include <__chrono/file_clock.h>
#include <__chrono/gps_clock.h>
#include <__chrono/hh_mm_ss.h>
#include <__chrono/local_info.h>
#include <__chrono/month.h>
@ -124,6 +125,11 @@ _LIBCPP_HIDE_FROM_ABI _Tm __convert_to_tm(chrono::tai_time<_Duration> __tp) {
return std::__convert_to_tm<_Tm>(chrono::sys_time<_Rp>{__tp.time_since_epoch() - __offset});
}
template <class _Tm, class _Duration>
_LIBCPP_HIDE_FROM_ABI _Tm __convert_to_tm(chrono::gps_time<_Duration> __tp) {
return std::__convert_to_tm<_Tm>(chrono::utc_clock::to_sys(chrono::gps_clock::to_utc(__tp)));
}
# endif // _LIBCPP_HAS_EXPERIMENTAL_TZDB
# endif // _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM && _LIBCPP_HAS_LOCALIZATION

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@ -21,6 +21,7 @@
# include <__chrono/day.h>
# include <__chrono/duration.h>
# include <__chrono/file_clock.h>
# include <__chrono/gps_clock.h>
# include <__chrono/hh_mm_ss.h>
# include <__chrono/local_info.h>
# include <__chrono/month.h>
@ -235,6 +236,8 @@ _LIBCPP_HIDE_FROM_ABI __time_zone __convert_to_time_zone([[maybe_unused]] const
# if _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM
else if constexpr (__is_time_point<_Tp> && requires { requires same_as<typename _Tp::clock, chrono::tai_clock>; })
return {"TAI", chrono::seconds{0}};
else if constexpr (__is_time_point<_Tp> && requires { requires same_as<typename _Tp::clock, chrono::gps_clock>; })
return {"GPS", chrono::seconds{0}};
else if constexpr (__is_specialization_v<_Tp, chrono::zoned_time>)
return __formatter::__convert_to_time_zone(__value.get_info());
# endif // _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM
@ -748,6 +751,17 @@ public:
}
};
template <class _Duration, __fmt_char_type _CharT>
struct _LIBCPP_TEMPLATE_VIS formatter<chrono::gps_time<_Duration>, _CharT> : public __formatter_chrono<_CharT> {
public:
using _Base _LIBCPP_NODEBUG = __formatter_chrono<_CharT>;
template <class _ParseContext>
_LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) {
return _Base::__parse(__ctx, __format_spec::__fields_chrono, __format_spec::__flags::__clock);
}
};
# endif // _LIBCPP_HAS_EXPERIMENTAL_TZDB
# endif // _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM

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@ -0,0 +1,90 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___CHRONO_GPS_CLOCK_H
#define _LIBCPP___CHRONO_GPS_CLOCK_H
#include <version>
// Enable the contents of the header only when libc++ was built with experimental features enabled.
#if _LIBCPP_HAS_EXPERIMENTAL_TZDB
# include <__assert>
# include <__chrono/duration.h>
# include <__chrono/time_point.h>
# include <__chrono/utc_clock.h>
# include <__config>
# include <__type_traits/common_type.h>
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
# endif
_LIBCPP_PUSH_MACROS
# include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
# if _LIBCPP_STD_VER >= 20 && _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM && _LIBCPP_HAS_LOCALIZATION
namespace chrono {
class gps_clock;
template <class _Duration>
using gps_time = time_point<gps_clock, _Duration>;
using gps_seconds = gps_time<seconds>;
class gps_clock {
public:
using rep = utc_clock::rep;
using period = utc_clock::period;
using duration = chrono::duration<rep, period>;
using time_point = chrono::time_point<gps_clock>;
static constexpr bool is_steady = false; // The utc_clock is not steady.
// The static difference between UTC and GPS time as specified in the Standard.
static constexpr chrono::seconds __offset{315964809};
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI static time_point now() { return from_utc(utc_clock::now()); }
template <class _Duration>
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI static utc_time<common_type_t<_Duration, seconds>>
to_utc(const gps_time<_Duration>& __time) noexcept {
using _Rp = common_type_t<_Duration, seconds>;
_Duration __time_since_epoch = __time.time_since_epoch();
_LIBCPP_ASSERT_ARGUMENT_WITHIN_DOMAIN(__time_since_epoch >= utc_time<_Rp>::min().time_since_epoch() + __offset,
"the GPS to UTC conversion would underflow");
return utc_time<_Rp>{__time_since_epoch + __offset};
}
template <class _Duration>
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI static gps_time<common_type_t<_Duration, seconds>>
from_utc(const utc_time<_Duration>& __time) noexcept {
using _Rp = common_type_t<_Duration, seconds>;
_Duration __time_since_epoch = __time.time_since_epoch();
_LIBCPP_ASSERT_ARGUMENT_WITHIN_DOMAIN(__time_since_epoch <= utc_time<_Rp>::max().time_since_epoch() - __offset,
"the UTC to GPS conversion would overflow");
return gps_time<_Rp>{__time_since_epoch - __offset};
}
};
} // namespace chrono
# endif // _LIBCPP_STD_VER >= 20 && _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM &&
// _LIBCPP_HAS_LOCALIZATION
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_HAS_EXPERIMENTAL_TZDB
#endif // _LIBCPP___CHRONO_GPS_CLOCK_H

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@ -18,6 +18,7 @@
# include <__chrono/day.h>
# include <__chrono/duration.h>
# include <__chrono/file_clock.h>
# include <__chrono/gps_clock.h>
# include <__chrono/hh_mm_ss.h>
# include <__chrono/local_info.h>
# include <__chrono/month.h>
@ -78,6 +79,12 @@ operator<<(basic_ostream<_CharT, _Traits>& __os, const tai_time<_Duration>& __tp
return __os << std::format(__os.getloc(), _LIBCPP_STATICALLY_WIDEN(_CharT, "{:L%F %T}"), __tp);
}
template <class _CharT, class _Traits, class _Duration>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const gps_time<_Duration>& __tp) {
return __os << std::format(__os.getloc(), _LIBCPP_STATICALLY_WIDEN(_CharT, "{:L%F %T}"), __tp);
}
# endif // _LIBCPP_HAS_EXPERIMENTAL_TZDB
# endif // _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM

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@ -363,6 +363,33 @@ template<class charT, class traits, class Duration> // C++20
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os, const tai_time<Duration>& t);
// [time.clock.gps], class gps_clock
class gps_clock { // C++20
public:
using rep = a signed arithmetic type;
using period = ratio<unspecified, unspecified>;
using duration = chrono::duration<rep, period>;
using time_point = chrono::time_point<gps_clock>;
static constexpr bool is_steady = unspecified;
static time_point now();
template<class Duration>
static utc_time<common_type_t<Duration, seconds>>
to_utc(const gps_time<Duration>& t);
template<class Duration>
static gps_time<common_type_t<Duration, seconds>>
from_utc(const utc_time<Duration>& t);
};
template<class Duration>
using gps_time = time_point<gps_clock, Duration>; // C++20
using gps_seconds = gps_time<seconds>; // C++20
template<class charT, class traits, class Duration> // C++20
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os, const gps_time<Duration>& t);
class file_clock // C++20
{
public:
@ -930,6 +957,8 @@ namespace std {
struct formatter<chrono::utc_time<Duration>, charT>; // C++20
template<class Duration, class charT>
struct formatter<chrono::tai_time<Duration>, charT>; // C++20
template<class Duration, class charT>
struct formatter<chrono::gps_time<Duration>, charT>; // C++20
template<class Duration, class charT>
struct formatter<chrono::file_time<Duration>, charT>; // C++20
template<class Duration, class charT>

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@ -935,6 +935,10 @@ module std [system] {
module exception { header "__chrono/exception.h" }
module file_clock { header "__chrono/file_clock.h" }
module formatter { header "__chrono/formatter.h" }
module gps_clock {
header "__chrono/gps_clock.h"
export std.chrono.time_point
}
module hh_mm_ss { header "__chrono/hh_mm_ss.h" }
module high_resolution_clock {
header "__chrono/high_resolution_clock.h"

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@ -103,13 +103,11 @@ export namespace std {
using std::chrono::tai_seconds;
using std::chrono::tai_time;
# if 0
// [time.clock.gps], class gps_clock
using std::chrono::gps_clock;
using std::chrono::gps_seconds;
using std::chrono::gps_time;
# endif
# endif // _LIBCPP_ENABLE_EXPERIMENTAL
#endif // _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM && _LIBCPP_HAS_LOCALIZATION

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@ -113,4 +113,15 @@ void test(std::chrono::time_zone tz, std::chrono::time_zone_link link, std::chro
// expected-warning@+1 {{ignoring return value of function declared with 'nodiscard' attribute}}
std::chrono::tai_clock::from_utc(std::chrono::utc_seconds{});
}
{ // [time.clock.gps]
// expected-warning@+1 {{ignoring return value of function declared with 'nodiscard' attribute}}
std::chrono::gps_clock::now();
// expected-warning@+1 {{ignoring return value of function declared with 'nodiscard' attribute}}
std::chrono::gps_clock::to_utc(std::chrono::gps_seconds{});
// expected-warning@+1 {{ignoring return value of function declared with 'nodiscard' attribute}}
std::chrono::gps_clock::from_utc(std::chrono::utc_seconds{});
}
}

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@ -0,0 +1,73 @@
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// REQUIRES: libcpp-hardening-mode={{extensive|debug}}
// REQUIRES: has-unix-headers
// XFAIL: libcpp-hardening-mode=debug && availability-verbose_abort-missing
// <chrono>
//
// class gps_clock;
// static gps_time<common_type_t<_Duration, seconds>>
// from_utc(const utc_time<_Duration>& t) noexcept;
#include <chrono>
#include "check_assertion.h"
// The function is specified as
// gps_time<common_type_t<Duration, seconds>>{t.time_since_epoch()} + 378691210s
// When t == t.max() there will be a signed integral overflow (other values too).
int main(int, char**) {
using namespace std::literals::chrono_literals;
constexpr std::chrono::seconds offset{315964809};
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::nanoseconds>::max() - offset);
TEST_LIBCPP_ASSERT_FAILURE(
std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::nanoseconds>::max() - offset + 1ns),
"the UTC to GPS conversion would overflow");
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::microseconds>::max() - offset);
TEST_LIBCPP_ASSERT_FAILURE(
std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::microseconds>::max() - offset + 1us),
"the UTC to GPS conversion would overflow");
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::milliseconds>::max() - offset);
TEST_LIBCPP_ASSERT_FAILURE(
std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::milliseconds>::max() - offset + 1ms),
"the UTC to GPS conversion would overflow");
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_seconds::max() - offset);
TEST_LIBCPP_ASSERT_FAILURE(std::chrono::gps_clock::from_utc(std::chrono::utc_seconds::max() - offset + 1s),
"the UTC to GPS conversion would overflow");
// The conversion uses `common_type_t<Duration, seconds>` so types "larger"
// than seconds are converted to seconds. Types "larger" than seconds are
// stored in "smaller" intergral and the overflow can never occur.
// Validate the types can never overflow on all current (and future) supported platforms.
static_assert(std::chrono::utc_time<std::chrono::days>::max() <= std::chrono::utc_seconds::max() - offset);
static_assert(std::chrono::utc_time<std::chrono::weeks>::max() <= std::chrono::utc_seconds::max() - offset);
static_assert(std::chrono::utc_time<std::chrono::months>::max() <= std::chrono::utc_seconds::max() - offset);
static_assert(std::chrono::utc_time<std::chrono::years>::max() <= std::chrono::utc_seconds::max() - offset);
// Validate the run-time conversion works.
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::days>::max());
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::weeks>::max());
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::months>::max());
(void)std::chrono::gps_clock::from_utc(std::chrono::utc_time<std::chrono::years>::max());
return 0;
}

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@ -0,0 +1,73 @@
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// REQUIRES: libcpp-hardening-mode={{extensive|debug}}
// REQUIRES: has-unix-headers
// XFAIL: libcpp-hardening-mode=debug && availability-verbose_abort-missing
// <chrono>
//
// class gps_clock;
// static utc_time<common_type_t<_Duration, seconds>>
// to_utc(const gps_time<_Duration>& t) noexcept;
#include <chrono>
#include "check_assertion.h"
// The function is specified as
// utc_time<common_type_t<Duration, seconds>>{t.time_since_epoch()} - 378691210s
// When t == t.min() there will be a signed integral underlow (other values too).
int main(int, char**) {
using namespace std::literals::chrono_literals;
constexpr std::chrono::seconds offset{315964809};
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::nanoseconds>::min() + offset);
TEST_LIBCPP_ASSERT_FAILURE(
std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::nanoseconds>::min() + offset - 1ns),
"the GPS to UTC conversion would underflow");
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::microseconds>::min() + offset);
TEST_LIBCPP_ASSERT_FAILURE(
std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::microseconds>::min() + offset - 1us),
"the GPS to UTC conversion would underflow");
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::milliseconds>::min() + offset);
TEST_LIBCPP_ASSERT_FAILURE(
std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::milliseconds>::min() + offset - 1ms),
"the GPS to UTC conversion would underflow");
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_seconds::min() + offset);
TEST_LIBCPP_ASSERT_FAILURE(std::chrono::gps_clock::to_utc(std::chrono::gps_seconds::min() + offset - 1s),
"the GPS to UTC conversion would underflow");
// The conversion uses `common_type_t<Duration, seconds>` so types "larger"
// than seconds are converted to seconds. Types "larger" than seconds are
// stored in "smaller" intergral and the underflow can never occur.
// Validate the types can never underflow on all current (and future) supported platforms.
static_assert(std::chrono::gps_time<std::chrono::days>::min() >= std::chrono::gps_seconds::min() + offset);
static_assert(std::chrono::gps_time<std::chrono::weeks>::min() >= std::chrono::gps_seconds::min() + offset);
static_assert(std::chrono::gps_time<std::chrono::months>::min() >= std::chrono::gps_seconds::min() + offset);
static_assert(std::chrono::gps_time<std::chrono::years>::min() >= std::chrono::gps_seconds::min() + offset);
// Validate the run-time conversion works.
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::days>::min());
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::weeks>::min());
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::months>::min());
(void)std::chrono::gps_clock::to_utc(std::chrono::gps_time<std::chrono::years>::min());
return 0;
}

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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
// TODO FMT This test should not require std::to_chars(floating-point)
// XFAIL: availability-fp_to_chars-missing
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// REQUIRES: locale.fr_FR.UTF-8
// REQUIRES: locale.ja_JP.UTF-8
// <chrono>
// class gps_clock;
// template<class charT, class traits, class Duration>
// basic_ostream<charT, traits>&
// operator<<(basic_ostream<charT, traits>& os, const gps_time<Duration>& tp);
#include <chrono>
#include <cassert>
#include <ratio>
#include <sstream>
#include "make_string.h"
#include "platform_support.h" // locale name macros
#include "test_macros.h"
#define SV(S) MAKE_STRING_VIEW(CharT, S)
template <class CharT, class Duration>
static std::basic_string<CharT> stream_c_locale(std::chrono::gps_time<Duration> time_point) {
std::basic_stringstream<CharT> sstr;
sstr << std::fixed << time_point;
return sstr.str();
}
template <class CharT, class Duration>
static std::basic_string<CharT> stream_fr_FR_locale(std::chrono::gps_time<Duration> time_point) {
std::basic_stringstream<CharT> sstr;
const std::locale locale(LOCALE_fr_FR_UTF_8);
sstr.imbue(locale);
sstr << std::fixed << time_point;
return sstr.str();
}
template <class CharT, class Duration>
static std::basic_string<CharT> stream_ja_JP_locale(std::chrono::gps_time<Duration> time_point) {
std::basic_stringstream<CharT> sstr;
const std::locale locale(LOCALE_ja_JP_UTF_8);
sstr.imbue(locale);
sstr << std::fixed << time_point;
return sstr.str();
}
template <class CharT>
static void test_c() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
assert(stream_c_locale<CharT>(cr::gps_time<cr::nanoseconds>{946'688'523'123'456'789ns}) ==
SV("2010-01-05 01:01:48.123456789"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::microseconds>{946'688'523'123'456us}) ==
SV("2010-01-05 01:01:48.123456"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) == SV("2010-01-05 00:00:07.123"));
assert(stream_c_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:12"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:30:42"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 22:59:42"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<signed char, std::ratio<2, 1>>>{
cr::duration<signed char, std::ratio<2, 1>>{60}}) == SV("1980-01-06 00:02:00"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<short, std::ratio<1, 2>>>{
cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1980-01-06 00:30:00.0"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<int, std::ratio<1, 4>>>{
cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1980-01-06 00:15:00.00"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<long, std::ratio<1, 10>>>{
cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01.1"));
assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 100>>>{
cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:12.10"));
}
template <class CharT>
static void test_fr_FR() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::nanoseconds>{946'688'523'123'456'789ns}) ==
SV("2010-01-05 01:01:48,123456789"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::microseconds>{946'688'523'123'456us}) ==
SV("2010-01-05 01:01:48,123456"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) ==
SV("2010-01-05 00:00:07,123"));
assert(stream_fr_FR_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:12"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:30:42"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 22:59:42"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<signed char, std::ratio<2, 1>>>{
cr::duration<signed char, std::ratio<2, 1>>{60}}) == SV("1980-01-06 00:02:00"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<short, std::ratio<1, 2>>>{
cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1980-01-06 00:30:00,0"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<int, std::ratio<1, 4>>>{
cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1980-01-06 00:15:00,00"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<long, std::ratio<1, 10>>>{
cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01,1"));
assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 100>>>{
cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:12,10"));
}
template <class CharT>
static void test_ja_JP() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::nanoseconds>{946'688'523'123'456'789ns}) ==
SV("2010-01-05 01:01:48.123456789"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::microseconds>{946'688'523'123'456us}) ==
SV("2010-01-05 01:01:48.123456"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) ==
SV("2010-01-05 00:00:07.123"));
assert(stream_ja_JP_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:12"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:30:42"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 22:59:42"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<signed char, std::ratio<2, 1>>>{
cr::duration<signed char, std::ratio<2, 1>>{60}}) == SV("1980-01-06 00:02:00"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<short, std::ratio<1, 2>>>{
cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1980-01-06 00:30:00.0"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<int, std::ratio<1, 4>>>{
cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1980-01-06 00:15:00.00"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<long, std::ratio<1, 10>>>{
cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01.1"));
assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 100>>>{
cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:12.10"));
}
template <class CharT>
static void test() {
test_c<CharT>();
test_fr_FR<CharT>();
test_ja_JP<CharT>();
}
int main(int, char**) {
test<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test<wchar_t>();
#endif
return 0;
}

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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// <chrono>
//
// class gps_clock;
// static gps_time<common_type_t<_Duration, seconds>>
// from_utc(const utc<_Duration>& __time) noexcept;
#include <chrono>
#include <cassert>
#include <source_location>
#include "test_macros.h"
#include "assert_macros.h"
#include "concat_macros.h"
static void test_known_values() {
namespace cr = std::chrono;
using namespace std::literals::chrono_literals;
// [time.clock.gps.overview]/1
// The clock gps_clock measures seconds since the first Sunday of January,
// 1980 00:00:00 UTC.
// The first Sunday is 1980-1-6 (so January sixth)
// ... 1980-01-06 00:00:00 GPS is equivalent to 1980-01-06 00:00:00 UTC
assert(cr::gps_clock::from_utc(cr::utc_clock::from_sys(cr::sys_days{cr::January / 6 / 1980})) == cr::gps_seconds{0s});
}
template <class Duration>
static void test_leap_seconds(std::chrono::utc_time<Duration> utc,
std::chrono::gps_time<Duration> expected,
std::source_location loc = std::source_location::current()) {
auto gps = std::chrono::gps_clock::from_utc(utc);
TEST_REQUIRE(gps == expected,
TEST_WRITE_CONCATENATED(loc, "\nExpected output ", expected, "\nActual output ", gps, '\n'));
}
// Tests set if existing database entries at the time of writing.
static void test_transitions() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
// "sys" is the time of the transition to the next leap second.
// "elapsed" is the number of leap seconds before the transition.
auto test_transition = [](cr::sys_days sys, cr::seconds elapsed) {
constexpr auto unix_to_gps_epoch_offset =
cr::sys_days{cr::January / 1 / 1970} - cr::sys_days{cr::January / 6 / 1980};
cr::gps_seconds gps{sys.time_since_epoch() + unix_to_gps_epoch_offset + elapsed};
test_leap_seconds(cr::utc_clock::from_sys(sys - 1ns), gps - 1ns);
test_leap_seconds(cr::utc_clock::from_sys(sys), gps + 1s);
test_leap_seconds(cr::utc_clock::from_sys(sys) + 1ns, gps + 1s + 1ns);
};
// Transitions from the start of UTC.
test_transition(cr::sys_days{cr::July / 1 / 1972}, -9s);
test_transition(cr::sys_days{cr::January / 1 / 1973}, -8s);
test_transition(cr::sys_days{cr::January / 1 / 1974}, -7s);
test_transition(cr::sys_days{cr::January / 1 / 1975}, -6s);
test_transition(cr::sys_days{cr::January / 1 / 1976}, -5s);
test_transition(cr::sys_days{cr::January / 1 / 1977}, -4s);
test_transition(cr::sys_days{cr::January / 1 / 1978}, -3s);
test_transition(cr::sys_days{cr::January / 1 / 1979}, -2s);
test_transition(cr::sys_days{cr::January / 1 / 1980}, -1s);
test_transition(cr::sys_days{cr::July / 1 / 1981}, 0s);
test_transition(cr::sys_days{cr::July / 1 / 1982}, 1s);
test_transition(cr::sys_days{cr::July / 1 / 1983}, 2s);
test_transition(cr::sys_days{cr::July / 1 / 1985}, 3s);
test_transition(cr::sys_days{cr::January / 1 / 1988}, 4s);
test_transition(cr::sys_days{cr::January / 1 / 1990}, 5s);
test_transition(cr::sys_days{cr::January / 1 / 1991}, 6s);
test_transition(cr::sys_days{cr::July / 1 / 1992}, 7s);
test_transition(cr::sys_days{cr::July / 1 / 1993}, 8s);
test_transition(cr::sys_days{cr::July / 1 / 1994}, 9s);
test_transition(cr::sys_days{cr::January / 1 / 1996}, 10s);
test_transition(cr::sys_days{cr::July / 1 / 1997}, 11s);
test_transition(cr::sys_days{cr::January / 1 / 1999}, 12s);
test_transition(cr::sys_days{cr::January / 1 / 2006}, 13s);
test_transition(cr::sys_days{cr::January / 1 / 2009}, 14s);
test_transition(cr::sys_days{cr::July / 1 / 2012}, 15s);
test_transition(cr::sys_days{cr::July / 1 / 2015}, 16s);
test_transition(cr::sys_days{cr::January / 1 / 2017}, 17s);
}
// Tests whether the return type is the expected type.
static void test_return_type() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::nanoseconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::nanoseconds>{0ns});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::microseconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::microseconds>{0us});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::milliseconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::milliseconds>{0ms});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::seconds>{cr::seconds{0}});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::minutes>{cr::minutes{0}});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::hours>{cr::hours{0}});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::days>{cr::days{0}});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::weeks>{cr::weeks{0}});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::months>{cr::months{0}});
}
{
[[maybe_unused]] std::same_as<cr::gps_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::from_utc(cr::utc_time<cr::years>{cr::years{0}});
}
}
int main(int, const char**) {
using namespace std::literals::chrono_literals;
std::chrono::utc_seconds time = std::chrono::utc_seconds{0s};
static_assert(noexcept(std::chrono::gps_clock::from_utc(time)));
test_known_values();
test_transitions();
test_return_type();
return 0;
}

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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// <chrono>
//
// class gps_clock;
// static time_point now();
#include <chrono>
#include <concepts>
#include <cassert>
int main(int, const char**) {
using clock = std::chrono::gps_clock;
std::same_as<clock::time_point> decltype(auto) t = clock::now();
assert(t >= clock::time_point::min());
assert(t <= clock::time_point::max());
return 0;
}

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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// <chrono>
//
// class gps_clock;
// static utc_time<common_type_t<_Duration, seconds>>
// to_utc(const gps_time<_Duration>& __time) noexcept;
#include <chrono>
#include <cassert>
#include <source_location>
#include "test_macros.h"
#include "assert_macros.h"
#include "concat_macros.h"
static void test_known_values() {
namespace cr = std::chrono;
using namespace std::literals::chrono_literals;
assert(cr::gps_clock::to_utc(cr::gps_seconds{0s}) == cr::utc_clock::from_sys(cr::sys_days{cr::January / 6 / 1980}));
}
template <class Duration>
static void test_leap_seconds(std::chrono::gps_time<Duration> gps,
std::chrono::utc_time<Duration> expected,
std::source_location loc = std::source_location::current()) {
auto utc = std::chrono::gps_clock::to_utc(gps);
TEST_REQUIRE(utc == expected,
TEST_WRITE_CONCATENATED(loc, "\nExpected output ", expected, "\nActual output ", utc, '\n'));
}
// Tests set if existing database entries at the time of writing.
static void test_transitions() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
// "sys" is the time of the transition to the next leap second.
// "elapsed" is the number of leap seconds before the transition.
auto test_transition = [](cr::sys_days sys, cr::seconds elapsed) {
constexpr auto unix_to_gps_epoch_offset =
cr::sys_days{cr::January / 1 / 1970} - cr::sys_days{cr::January / 6 / 1980};
cr::gps_seconds gps{sys.time_since_epoch() + unix_to_gps_epoch_offset + elapsed};
test_leap_seconds(gps - 1ns, cr::utc_clock::from_sys(sys - 1ns));
test_leap_seconds(gps + 1s, cr::utc_clock::from_sys(sys));
test_leap_seconds(gps + 1s + 1ns, cr::utc_clock::from_sys(sys + 1ns));
};
// Transitions from the start of UTC.
test_transition(cr::sys_days{cr::July / 1 / 1972}, -9s);
test_transition(cr::sys_days{cr::January / 1 / 1973}, -8s);
test_transition(cr::sys_days{cr::January / 1 / 1974}, -7s);
test_transition(cr::sys_days{cr::January / 1 / 1975}, -6s);
test_transition(cr::sys_days{cr::January / 1 / 1976}, -5s);
test_transition(cr::sys_days{cr::January / 1 / 1977}, -4s);
test_transition(cr::sys_days{cr::January / 1 / 1978}, -3s);
test_transition(cr::sys_days{cr::January / 1 / 1979}, -2s);
test_transition(cr::sys_days{cr::January / 1 / 1980}, -1s);
test_transition(cr::sys_days{cr::July / 1 / 1981}, 0s);
test_transition(cr::sys_days{cr::July / 1 / 1982}, 1s);
test_transition(cr::sys_days{cr::July / 1 / 1983}, 2s);
test_transition(cr::sys_days{cr::July / 1 / 1985}, 3s);
test_transition(cr::sys_days{cr::January / 1 / 1988}, 4s);
test_transition(cr::sys_days{cr::January / 1 / 1990}, 5s);
test_transition(cr::sys_days{cr::January / 1 / 1991}, 6s);
test_transition(cr::sys_days{cr::July / 1 / 1992}, 7s);
test_transition(cr::sys_days{cr::July / 1 / 1993}, 8s);
test_transition(cr::sys_days{cr::July / 1 / 1994}, 9s);
test_transition(cr::sys_days{cr::January / 1 / 1996}, 10s);
test_transition(cr::sys_days{cr::July / 1 / 1997}, 11s);
test_transition(cr::sys_days{cr::January / 1 / 1999}, 12s);
test_transition(cr::sys_days{cr::January / 1 / 2006}, 13s);
test_transition(cr::sys_days{cr::January / 1 / 2009}, 14s);
test_transition(cr::sys_days{cr::July / 1 / 2012}, 15s);
test_transition(cr::sys_days{cr::July / 1 / 2015}, 16s);
test_transition(cr::sys_days{cr::January / 1 / 2017}, 17s);
}
// Tests whether the return type is the expected type.
static void test_return_type() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::nanoseconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::nanoseconds>{0ns});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::microseconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::microseconds>{0us});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::milliseconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::milliseconds>{0ms});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::seconds>{cr::seconds{0}});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::minutes>{cr::minutes{0}});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::hours>{cr::hours{0}});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::days>{cr::days{0}});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::weeks>{cr::weeks{0}});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::months>{cr::months{0}});
}
{
[[maybe_unused]] std::same_as<cr::utc_time<cr::seconds>> decltype(auto) _ =
cr::gps_clock::to_utc(cr::gps_time<cr::years>{cr::years{0}});
}
}
int main(int, const char**) {
using namespace std::literals::chrono_literals;
std::chrono::gps_seconds time = std::chrono::gps_seconds{0s};
static_assert(noexcept(std::chrono::gps_clock::to_utc(time)));
test_known_values();
test_transitions();
test_return_type();
return 0;
}

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@ -0,0 +1,60 @@
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// <chrono>
// class gps_clock {
// public:
// using rep = a signed arithmetic type;
// using period = ratio<unspecified, unspecified>;
// using duration = chrono::duration<rep, period>;
// using time_point = chrono::time_point<gps_clock>;
// static constexpr bool is_steady = unspecified;
//
// ...
// };
//
// template<class Duration>
// using gps_time = time_point<gps_clock, Duration>;
// using gps_seconds = gps_time<seconds>;
#include <chrono>
#include <concepts>
#include <ratio>
#include "test_macros.h"
// class gps_clock
using rep = std::chrono::gps_clock::rep;
using period = std::chrono::gps_clock::period;
using duration = std::chrono::gps_clock::duration;
using time_point = std::chrono::gps_clock::time_point;
constexpr bool is_steady = std::chrono::gps_clock::is_steady;
// Tests the values. part of them are implementation defined.
LIBCPP_STATIC_ASSERT(std::same_as<rep, std::chrono::utc_clock::rep>);
static_assert(std::is_arithmetic_v<rep>);
static_assert(std::is_signed_v<rep>);
LIBCPP_STATIC_ASSERT(std::same_as<period, std::chrono::utc_clock::period>);
static_assert(std::same_as<period, std::ratio<period::num, period::den>>);
static_assert(std::same_as<duration, std::chrono::duration<rep, period>>);
static_assert(std::same_as<time_point, std::chrono::time_point<std::chrono::gps_clock>>);
LIBCPP_STATIC_ASSERT(is_steady == false);
// typedefs
static_assert(std::same_as<std::chrono::gps_time<int>, std::chrono::time_point<std::chrono::gps_clock, int>>);
static_assert(std::same_as<std::chrono::gps_time<long>, std::chrono::time_point<std::chrono::gps_clock, long>>);
static_assert(std::same_as<std::chrono::gps_seconds, std::chrono::gps_time<std::chrono::seconds>>);

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//===----------------------------------------------------------------------===//
// 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
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++20
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
// TODO FMT This test should not require std::to_chars(floating-point)
// XFAIL: availability-fp_to_chars-missing
// XFAIL: libcpp-has-no-experimental-tzdb
// XFAIL: availability-tzdb-missing
// REQUIRES: locale.fr_FR.UTF-8
// REQUIRES: locale.ja_JP.UTF-8
// <chrono>
// template<class Duration, class charT>
// struct formatter<chrono::gps_time<Duration>, charT>;
#include <chrono>
#include <format>
#include <cassert>
#include <concepts>
#include <locale>
#include <iostream>
#include <type_traits>
#include "formatter_tests.h"
#include "make_string.h"
#include "platform_support.h" // locale name macros
#include "test_macros.h"
template <class CharT>
static void test_no_chrono_specs() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output
// [time.syn]
// using nanoseconds = duration<signed integer type of at least 64 bits, nano>;
// using microseconds = duration<signed integer type of at least 55 bits, micro>;
// using milliseconds = duration<signed integer type of at least 45 bits, milli>;
// using seconds = duration<signed integer type of at least 35 bits>;
// using minutes = duration<signed integer type of at least 29 bits, ratio< 60>>;
// using hours = duration<signed integer type of at least 23 bits, ratio<3600>>;
check(SV("1435-08-09 22:07:05"), SV("{}"), cr::gps_seconds(-17'179'869'184s)); // Minimum value for 35 bits.
check(SV("1911-12-18 20:46:01"), SV("{}"), cr::gps_seconds(-2'147'483'648s));
check(SV("1980-01-05 00:00:00"), SV("{}"), cr::gps_seconds(-24h));
check(SV("1980-01-05 06:00:00"), SV("{}"), cr::gps_seconds(-18h));
check(SV("1980-01-05 12:00:00"), SV("{}"), cr::gps_seconds(-12h));
check(SV("1980-01-05 18:00:00"), SV("{}"), cr::gps_seconds(-6h));
check(SV("1980-01-05 23:59:59"), SV("{}"), cr::gps_seconds(-1s));
check(SV("1980-01-06 00:00:00"), SV("{}"), cr::gps_seconds(0s));
check(SV("2010-01-04 23:59:45"), SV("{}"), cr::gps_seconds(946'684'800s));
check(SV("2010-01-05 01:01:48"), SV("{}"), cr::gps_seconds(946'688'523s));
check(SV("2048-01-24 03:13:49"), SV("{}"), cr::gps_seconds(2'147'483'647s));
check(SV("2524-06-03 01:52:45"), SV("{}"), cr::gps_seconds(17'179'869'183s)); // Maximum value for 35 bits.
check(SV("2010-01-05 01:01:48.123"), SV("{}"), cr::gps_time<cr::milliseconds>(946'688'523'123ms));
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_year() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt =
SV("{:%%C='%C'%t%%EC='%EC'%t%%y='%y'%t%%Oy='%Oy'%t%%Ey='%Ey'%t%%Y='%Y'%t%%EY='%EY'%n}");
constexpr std::basic_string_view<CharT> lfmt =
SV("{:L%%C='%C'%t%%EC='%EC'%t%%y='%y'%t%%Oy='%Oy'%t%%Ey='%Ey'%t%%Y='%Y'%t%%EY='%EY'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%C='19'\t%EC='19'\t%y='80'\t%Oy='80'\t%Ey='80'\t%Y='1980'\t%EY='1980'\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%C='20'\t%EC='20'\t%y='09'\t%Oy='09'\t%Ey='09'\t%Y='2009'\t%EY='2009'\n"),
fmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
check(SV("%C='19'\t%EC='19'\t%y='80'\t%Oy='80'\t%Ey='80'\t%Y='1980'\t%EY='1980'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%C='20'\t%EC='20'\t%y='09'\t%Oy='09'\t%Ey='09'\t%Y='2009'\t%EY='2009'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%C='19'\t%EC='19'\t%y='80'\t%Oy='80'\t%Ey='80'\t%Y='1980'\t%EY='1980'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%C='20'\t%EC='20'\t%y='09'\t%Oy='09'\t%Ey='09'\t%Y='2009'\t%EY='2009'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#else // defined(_WIN32) || defined(__APPLE__) || defined(_AIX)||defined(__FreeBSD__)
check(loc,
SV("%C='19'\t%EC='昭和'\t%y='80'\t%Oy='八十'\t%Ey='55'\t%Y='1980'\t%EY='昭和55年'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%C='20'\t%EC='平成'\t%y='09'\t%Oy='九'\t%Ey='21'\t%Y='2009'\t%EY='平成21年'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#endif // defined(_WIN32) || defined(__APPLE__) || defined(_AIX)||defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_month() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%b='%b'%t%%h='%h'%t%%B='%B'%t%%m='%m'%t%%Om='%Om'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%b='%b'%t%%h='%h'%t%%B='%B'%t%%m='%m'%t%%Om='%Om'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%b='Jan'\t%h='Jan'\t%B='January'\t%m='01'\t%Om='01'\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%b='May'\t%h='May'\t%B='May'\t%m='05'\t%Om='05'\n"),
fmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS on Wednesday, 18 May 2033
// Use the global locale (fr_FR)
#if defined(__APPLE__)
check(SV("%b='jan'\t%h='jan'\t%B='janvier'\t%m='01'\t%Om='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
#else
check(SV("%b='janv.'\t%h='janv.'\t%B='janvier'\t%m='01'\t%Om='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
#endif
check(SV("%b='mai'\t%h='mai'\t%B='mai'\t%m='05'\t%Om='05'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS on Wednesday, 18 May 2033
// Use supplied locale (ja_JP). This locale has a different alternate.
#ifdef _WIN32
check(loc,
SV("%b='1'\t%h='1'\t%B='1月'\t%m='01'\t%Om='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%b='5'\t%h='5'\t%B='5月'\t%m='05'\t%Om='05'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#elif defined(_AIX) // _WIN32
check(loc,
SV("%b='1月'\t%h='1月'\t%B='1月'\t%m='01'\t%Om='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%b='5月'\t%h='5月'\t%B='5月'\t%m='05'\t%Om='05'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#elif defined(__APPLE__) // _WIN32
check(loc,
SV("%b=' 1'\t%h=' 1'\t%B='1月'\t%m='01'\t%Om='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%b=' 5'\t%h=' 5'\t%B='5月'\t%m='05'\t%Om='05'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#elif defined(__FreeBSD__) // _WIN32
check(loc,
SV("%b=' 1月'\t%h=' 1月'\t%B='1月'\t%m='01'\t%Om='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%b=' 5月'\t%h=' 5月'\t%B='5月'\t%m='05'\t%Om='05'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#else // _WIN32
check(loc,
SV("%b=' 1月'\t%h=' 1月'\t%B='1月'\t%m='01'\t%Om='一'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%b=' 5月'\t%h=' 5月'\t%B='5月'\t%m='05'\t%Om='五'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#endif // _WIN32
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_day() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%d='%d'%t%%Od='%Od'%t%%e='%e'%t%%Oe='%Oe'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%d='%d'%t%%Od='%Od'%t%%e='%e'%t%%Oe='%Oe'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%d='06'\t%Od='06'\t%e=' 6'\t%Oe=' 6'\n"), fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%d='13'\t%Od='13'\t%e='13'\t%Oe='13'\n"),
fmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
check(SV("%d='06'\t%Od='06'\t%e=' 6'\t%Oe=' 6'\n"), lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%d='13'\t%Od='13'\t%e='13'\t%Oe='13'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
check(SV("%d='06'\t%Od='06'\t%e=' 6'\t%Oe=' 6'\n"), lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%d='06'\t%Od='06'\t%e=' 6'\t%Oe=' 6'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%d='13'\t%Od='13'\t%e='13'\t%Oe='13'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#else // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%d='06'\t%Od='六'\t%e=' 6'\t%Oe='六'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%d='13'\t%Od='十三'\t%e='13'\t%Oe='十三'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#endif // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_weekday() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt =
SV("{:%%a='%a'%t%%A='%A'%t%%u='%u'%t%%Ou='%Ou'%t%%w='%w'%t%%Ow='%Ow'%n}");
constexpr std::basic_string_view<CharT> lfmt =
SV("{:L%%a='%a'%t%%A='%A'%t%%u='%u'%t%%Ou='%Ou'%t%%w='%w'%t%%Ow='%Ow'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%a='Sun'\t%A='Sunday'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%a='Sun'\t%A='Sunday'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
fmt,
cr::gps_seconds(3'979'002'513s)); // 06:28:15 GPS on Sunday, 7 February 2106
// Use the global locale (fr_FR)
#if defined(__APPLE__)
check(SV("%a='Dim'\t%A='Dimanche'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%a='Dim'\t%A='Dimanche'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
lfmt,
cr::gps_seconds(3'979'002'513s)); // 06:28:15 GPS on Sunday, 7 February 2106
#else
check(SV("%a='dim.'\t%A='dimanche'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%a='dim.'\t%A='dimanche'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
lfmt,
cr::gps_seconds(3'979'002'513s)); // 06:28:15 GPS on Sunday, 7 February 2106
#endif
// Use supplied locale (ja_JP).
// This locale has a different alternate, but not on all platforms
#if defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%a='日'\t%A='日曜日'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%a='日'\t%A='日曜日'\t%u='7'\t%Ou='7'\t%w='0'\t%Ow='0'\n"),
lfmt,
cr::gps_seconds(3'979'002'513s)); // 06:28:15 GPS on Sunday, 7 February 2106
#else // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%a='日'\t%A='日曜日'\t%u='7'\t%Ou='七'\t%w='0'\t%Ow=''\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%a='日'\t%A='日曜日'\t%u='7'\t%Ou='七'\t%w='0'\t%Ow=''\n"),
lfmt,
cr::gps_seconds(3'979'002'513s)); // 06:28:15 GPS on Sunday, 7 February 2106
#endif // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_day_of_year() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%j='%j'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%j='%j'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%j='006'\n"), fmt, cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%j='138'\n"), fmt, cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
// Use the global locale (fr_FR)
check(SV("%j='006'\n"), lfmt, cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%j='138'\n"), lfmt, cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
// Use supplied locale (ja_JP). This locale has a different alternate.
check(loc, SV("%j='006'\n"), lfmt, cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc, SV("%j='138'\n"), lfmt, cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_week() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%U='%U'%t%%OU='%OU'%t%%W='%W'%t%%OW='%OW'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%U='%U'%t%%OU='%OU'%t%%W='%W'%t%%OW='%OW'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%U='01'\t%OU='01'\t%W='00'\t%OW='00'\n"), fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%U='20'\t%OU='20'\t%W='20'\t%OW='20'\n"),
fmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
// Use the global locale (fr_FR)
check(SV("%U='01'\t%OU='01'\t%W='00'\t%OW='00'\n"), lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%U='20'\t%OU='20'\t%W='20'\t%OW='20'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%U='01'\t%OU='001\t%W='00'\t%OW='00'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%U='20'\t%OU='20'\t%W='20'\t%OW='20'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#else // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%U='01'\t%OU='一'\t%W='00'\t%OW=''\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%U='20'\t%OU='二十'\t%W='20'\t%OW='二十'\n"),
lfmt,
cr::gps_seconds(1'684'035'218s)); // 03:33:20 GPS Wednesday, 18 May 2033
#endif // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_iso_8601_week() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%g='%g'%t%%G='%G'%t%%V='%V'%t%%OV='%OV'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%g='%g'%t%%G='%G'%t%%V='%V'%t%%OV='%OV'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%g='80'\t%G='1980'\t%V='01'\t%OV='01'\n"), fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%g='09'\t%G='2009'\t%V='07'\t%OV='07'\n"),
fmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
check(SV("%g='80'\t%G='1980'\t%V='01'\t%OV='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%g='09'\t%G='2009'\t%V='07'\t%OV='07'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%g='80'\t%G='1980'\t%V='01'\t%OV='01'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%g='09'\t%G='2009'\t%V='07'\t%OV='07'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#else // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%g='80'\t%G='1980'\t%V='01'\t%OV='一'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%g='09'\t%G='2009'\t%V='07'\t%OV='七'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#endif // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_date() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%D='%D'%t%%F='%F'%t%%x='%x'%t%%Ex='%Ex'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%D='%D'%t%%F='%F'%t%%x='%x'%t%%Ex='%Ex'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%D='01/06/80'\t%F='1980-01-06'\t%x='01/06/80'\t%Ex='01/06/80'\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%D='02/13/09'\t%F='2009-02-13'\t%x='02/13/09'\t%Ex='02/13/09'\n"),
fmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
#if defined(__APPLE__) || defined(__FreeBSD__)
check(SV("%D='01/06/80'\t%F='1980-01-01'\t%x='06.01.1980'\t%Ex='06.01.1980'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%D='02/13/09'\t%F='2009-02-13'\t%x='13.02.2009'\t%Ex='13.02.2009'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#else
check(SV("%D='01/06/80'\t%F='1980-01-06'\t%x='06/01/1980'\t%Ex='06/01/1980'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%D='02/13/09'\t%F='2009-02-13'\t%x='13/02/2009'\t%Ex='13/02/2009'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#endif
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%D='01/06/80'\t%F='1980-01-06'\t%x='1980/01/06'\t%Ex='1980/01/06'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%D='02/13/09'\t%F='2009-02-13'\t%x='2009/02/13'\t%Ex='2009/02/13'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#else // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
check(loc,
SV("%D='01/06/80'\t%F='1980-01-06'\t%x='1980年01月06日'\t%Ex='昭和55年01月06日'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%D='02/13/09'\t%F='2009-02-13'\t%x='2009年02月13日'\t%Ex='平成21年02月13日'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#endif // defined(_WIN32) || defined(__APPLE__) || defined(_AIX) || defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_time() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV(
"{:"
"%%H='%H'%t"
"%%OH='%OH'%t"
"%%I='%I'%t"
"%%OI='%OI'%t"
"%%M='%M'%t"
"%%OM='%OM'%t"
"%%S='%S'%t"
"%%OS='%OS'%t"
"%%p='%p'%t"
"%%R='%R'%t"
"%%T='%T'%t"
"%%r='%r'%t"
"%%X='%X'%t"
"%%EX='%EX'%t"
"%n}");
constexpr std::basic_string_view<CharT> lfmt = SV(
"{:L"
"%%H='%H'%t"
"%%OH='%OH'%t"
"%%I='%I'%t"
"%%OI='%OI'%t"
"%%M='%M'%t"
"%%OM='%OM'%t"
"%%S='%S'%t"
"%%OS='%OS'%t"
"%%p='%p'%t"
"%%R='%R'%t"
"%%T='%T'%t"
"%%r='%r'%t"
"%%X='%X'%t"
"%%EX='%EX'%t"
"%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%H='00'\t"
"%OH='00'\t"
"%I='12'\t"
"%OI='12'\t"
"%M='00'\t"
"%OM='00'\t"
"%S='00'\t"
"%OS='00'\t"
"%p='AM'\t"
"%R='00:00'\t"
"%T='00:00:00'\t"
"%r='12:00:00 AM'\t"
"%X='00:00:00'\t"
"%EX='00:00:00'\t"
"\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='31'\t"
"%OM='31'\t"
"%S='30.123'\t"
"%OS='30.123'\t"
"%p='PM'\t"
"%R='23:31'\t"
"%T='23:31:30.123'\t"
"%r='11:31:30 PM'\t"
"%X='23:31:30'\t"
"%EX='23:31:30'\t"
"\n"),
fmt,
cr::gps_time<cr::milliseconds>(918'603'105'123ms)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
check(SV("%H='00'\t"
"%OH='00'\t"
"%I='12'\t"
"%OI='12'\t"
"%M='00'\t"
"%OM='00'\t"
"%S='00'\t"
"%OS='00'\t"
#if defined(_AIX)
"%p='AM'\t"
#else
"%p=''\t"
#endif
"%R='00:00'\t"
"%T='00:00:00'\t"
#ifdef _WIN32
"%r='00:00:00'\t"
#elif defined(_AIX)
"%r='12:00:00 AM'\t"
#elif defined(__APPLE__) || defined(__FreeBSD__)
"%r=''\t"
#else
"%r='12:00:00 '\t"
#endif
"%X='00:00:00'\t"
"%EX='00:00:00'\t"
"\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='31'\t"
"%OM='31'\t"
"%S='30,123'\t"
"%OS='30,123'\t"
#if defined(_AIX)
"%p='PM'\t"
#else
"%p=''\t"
#endif
"%R='23:31'\t"
"%T='23:31:30,123'\t"
#ifdef _WIN32
"%r='23:31:30'\t"
#elif defined(_AIX)
"%r='11:31:30 PM'\t"
#elif defined(__APPLE__) || defined(__FreeBSD__)
"%r=''\t"
#else
"%r='11:31:30 '\t"
#endif
"%X='23:31:30'\t"
"%EX='23:31:30'\t"
"\n"),
lfmt,
cr::gps_time<cr::milliseconds>(918'603'105'123ms)); // 23:31:30 GPS Friday, 13 February 2009
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
check(loc,
SV("%H='00'\t"
"%OH='00'\t"
"%I='12'\t"
"%OI='12'\t"
"%M='00'\t"
"%OM='00'\t"
"%S='00'\t"
"%OS='00'\t"
# if defined(__APPLE__)
"%p='AM'\t"
# else
"%p='午前'\t"
# endif
"%R='00:00'\t"
"%T='00:00:00'\t"
# if defined(__APPLE__) || defined(__FreeBSD__)
# if defined(__APPLE__)
"%r='12:00:00 AM'\t"
# else
"%r='12:00:00 午前'\t"
# endif
"%X='00時00分00秒'\t"
"%EX='00時00分00秒'\t"
# elif defined(_WIN32)
"%r='0:00:00'\t"
"%X='0:00:00'\t"
"%EX='0:00:00'\t"
# else
"%r='午前12:00:00'\t"
"%X='00:00:00'\t"
"%EX='00:00:00'\t"
# endif
"\n"),
lfmt,
cr::hh_mm_ss(0s));
check(loc,
SV("%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='31'\t"
"%OM='31'\t"
"%S='30.123'\t"
"%OS='30.123'\t"
# if defined(__APPLE__)
"%p='PM'\t"
# else
"%p='午後'\t"
# endif
"%R='23:31'\t"
"%T='23:31:30.123'\t"
# if defined(__APPLE__) || defined(__FreeBSD__)
# if defined(__APPLE__)
"%r='11:31:30 PM'\t"
# else
"%r='11:31:30 午後'\t"
# endif
"%X='23時31分30秒'\t"
"%EX='23時31分30秒'\t"
# elif defined(_WIN32)
"%r='23:31:30'\t"
"%X='23:31:30'\t"
"%EX='23:31:30'\t"
# else
"%r='午後11:31:30'\t"
"%X='23:31:30'\t"
"%EX='23:31:30'\t"
# endif
"\n"),
lfmt,
cr::hh_mm_ss(23h + 31min + 30s + 123ms));
#else // defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
check(loc,
SV("%H='00'\t"
"%OH=''\t"
"%I='12'\t"
"%OI='十二'\t"
"%M='00'\t"
"%OM=''\t"
"%S='00'\t"
"%OS=''\t"
"%p='午前'\t"
"%R='00:00'\t"
"%T='00:00:00'\t"
"%r='午前12時00分00秒'\t"
"%X='00時00分00秒'\t"
"%EX='00時00分00秒'\t"
"\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%H='23'\t"
"%OH='二十三'\t"
"%I='11'\t"
"%OI='十一'\t"
"%M='31'\t"
"%OM='三十一'\t"
"%S='30.123'\t"
"%OS='三十.123'\t"
"%p='午後'\t"
"%R='23:31'\t"
"%T='23:31:30.123'\t"
"%r='午後11時31分30秒'\t"
"%X='23時31分30秒'\t"
"%EX='23時31分30秒'\t"
"\n"),
lfmt,
cr::gps_time<cr::milliseconds>(918'603'105'123ms)); // 23:31:30 GPS Friday, 13 February 2009
#endif // defined(__APPLE__) || defined(_AIX) || defined(_WIN32) || defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_date_time() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%c='%c'%t%%Ec='%Ec'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%c='%c'%t%%Ec='%Ec'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%c='Sun Jan 6 00:00:00 1980'\t%Ec='Sun Jan 6 00:00:00 1980'\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(SV("%c='Fri Feb 13 23:31:30 2009'\t%Ec='Fri Feb 13 23:31:30 2009'\n"),
fmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use the global locale (fr_FR)
check(
// https://sourceware.org/bugzilla/show_bug.cgi?id=24054
#if defined(__powerpc__) && defined(__linux__)
SV("%c='dim. 06 janv. 1980 00:00:00 GPS'\t%Ec='dim. 06 janv. 1958 00:00:00 GPS'\n"),
#elif defined(__GLIBC__) && __GLIBC__ <= 2 && __GLIBC_MINOR__ < 29
SV("%c='dim. 06 janv. 1980 00:00:00 GMT'\t%Ec='dim. 06 janv. 1980 00:00:00 GMT'\n"),
#elif defined(_AIX)
SV("%c=' 1 janvier 1980 à 00:00:00 GPS'\t%Ec=' 6 janvier 1980 à 00:00:00 GPS'\n"),
#elif defined(__APPLE__)
SV("%c='Dim 6 jan 00:00:00 1980'\t%Ec='Dim 6 jan 00:00:00 1980'\n"),
#elif defined(_WIN32)
SV("%c='06/01/1980 00:00:00'\t%Ec='06/01/1980 00:00:00'\n"),
#elif defined(__FreeBSD__)
SV("%c='dim. 6 janv. 00:00:00 1980'\t%Ec='dim. 6 janv. 00:00:00 1980'\n"),
#else
SV("%c='dim. 06 janv. 1980 00:00:00'\t%Ec='dim. 06 janv. 1980 00:00:00'\n"),
#endif
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(
// https://sourceware.org/bugzilla/show_bug.cgi?id=24054
#if defined(__powerpc__) && defined(__linux__)
SV("%c='ven. 13 févr. 2009 23:31:30 GPS'\t%Ec='ven. 13 févr. 2009 23:31:30 GPS'\n"),
#elif defined(__GLIBC__) && __GLIBC__ <= 2 && __GLIBC_MINOR__ < 29
SV("%c='ven. 13 févr. 2009 23:31:30 GMT'\t%Ec='ven. 13 févr. 2009 23:31:30 GMT'\n"),
#elif defined(_AIX)
SV("%c='13 février 2009 à 23:31:30 GPS'\t%Ec='13 février 2009 à 23:31:30 GPS'\n"),
#elif defined(__APPLE__)
SV("%c='Ven 13 fév 23:31:30 2009'\t%Ec='Ven 13 fév 23:31:30 2009'\n"),
#elif defined(_WIN32)
SV("%c='13/02/2009 23:31:30'\t%Ec='13/02/2009 23:31:30'\n"),
#elif defined(__FreeBSD__)
SV("%c='ven. 13 févr. 23:31:30 2009'\t%Ec='ven. 13 févr. 23:31:30 2009'\n"),
#else
SV("%c='ven. 13 févr. 2009 23:31:30'\t%Ec='ven. 13 févr. 2009 23:31:30'\n"),
#endif
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
// Use supplied locale (ja_JP). This locale has a different alternate.a
#if defined(__APPLE__) || defined(__FreeBSD__)
check(loc,
SV("%c='水 1/ 6 00:00:00 1980'\t%Ec='水 1/ 6 00:00:00 1980'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%c='金 2/13 23:31:30 2009'\t%Ec='金 2/13 23:31:30 2009'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#elif defined(_AIX) // defined(__APPLE__)|| defined(__FreeBSD__)
check(loc,
SV("%c='1980年01月 6日 00:00:00 GPS'\t%Ec='1980年01月 6日 00:00:00 GPS'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%c='2009年02月13日 23:31:30 GPS'\t%Ec='2009年02月13日 23:31:30 GPS'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#elif defined(_WIN32) // defined(__APPLE__)|| defined(__FreeBSD__)
check(loc,
SV("%c='1980/01/06 0:00:00'\t%Ec='1980/01/06 0:00:00'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%c='2009/02/13 23:31:30'\t%Ec='2009/02/13 23:31:30'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#else // defined(__APPLE__)|| defined(__FreeBSD__)
check(loc,
SV("%c='1980年01月06日 00時00分00秒'\t%Ec='昭和55年01月06日 00時00分00秒'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
check(loc,
SV("%c='2009年02月13日 23時31分30秒'\t%Ec='平成21年02月13日 23時31分30秒'\n"),
lfmt,
cr::gps_seconds(918'603'105s)); // 23:31:30 GPS Friday, 13 February 2009
#endif // defined(__APPLE__)|| defined(__FreeBSD__)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values_time_zone() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
constexpr std::basic_string_view<CharT> fmt = SV("{:%%z='%z'%t%%Ez='%Ez'%t%%Oz='%Oz'%t%%Z='%Z'%n}");
constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%z='%z'%t%%Ez='%Ez'%t%%Oz='%Oz'%t%%Z='%Z'%n}");
const std::locale loc(LOCALE_ja_JP_UTF_8);
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
// Non localized output using C-locale
check(SV("%z='+0000'\t%Ez='+00:00'\t%Oz='+00:00'\t%Z='GPS'\n"),
fmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
// Use the global locale (fr_FR)
check(SV("%z='+0000'\t%Ez='+00:00'\t%Oz='+00:00'\t%Z='GPS'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
// Use supplied locale (ja_JP).
check(loc,
SV("%z='+0000'\t%Ez='+00:00'\t%Oz='+00:00'\t%Z='GPS'\n"),
lfmt,
cr::gps_seconds(0s)); // 00:00:00 GPS Sunday, 6 January 1980
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values() {
test_valid_values_year<CharT>();
test_valid_values_month<CharT>();
test_valid_values_day<CharT>();
test_valid_values_weekday<CharT>();
test_valid_values_day_of_year<CharT>();
test_valid_values_week<CharT>();
test_valid_values_iso_8601_week<CharT>();
test_valid_values_date<CharT>();
test_valid_values_time<CharT>();
test_valid_values_date_time<CharT>();
test_valid_values_time_zone<CharT>();
}
template <class CharT>
static void test() {
using namespace std::literals::chrono_literals;
namespace cr = std::chrono;
test_no_chrono_specs<CharT>();
test_valid_values<CharT>();
check_invalid_types<CharT>(
{SV("a"), SV("A"), SV("b"), SV("B"), SV("c"), SV("C"), SV("d"), SV("D"), SV("e"), SV("F"), SV("g"),
SV("G"), SV("h"), SV("H"), SV("I"), SV("j"), SV("m"), SV("M"), SV("p"), SV("r"), SV("R"), SV("S"),
SV("T"), SV("u"), SV("U"), SV("V"), SV("w"), SV("W"), SV("x"), SV("X"), SV("y"), SV("Y"), SV("z"),
SV("Z"), SV("Ec"), SV("EC"), SV("Ex"), SV("EX"), SV("Ey"), SV("EY"), SV("Ez"), SV("Od"), SV("Oe"), SV("OH"),
SV("OI"), SV("Om"), SV("OM"), SV("OS"), SV("Ou"), SV("OU"), SV("OV"), SV("Ow"), SV("OW"), SV("Oy"), SV("Oz")},
cr::gps_seconds(0s));
check_exception("The format specifier expects a '%' or a '}'", SV("{:A"), cr::gps_seconds(0s));
check_exception("The chrono specifiers contain a '{'", SV("{:%%{"), cr::gps_seconds(0s));
check_exception("End of input while parsing a conversion specifier", SV("{:%"), cr::gps_seconds(0s));
check_exception("End of input while parsing the modifier E", SV("{:%E"), cr::gps_seconds(0s));
check_exception("End of input while parsing the modifier O", SV("{:%O"), cr::gps_seconds(0s));
// Precision not allowed
check_exception("The format specifier expects a '%' or a '}'", SV("{:.3}"), cr::gps_seconds(0s));
}
int main(int, char**) {
test<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test<wchar_t>();
#endif
return 0;
}