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llvm-project/libcxx/test/std/time/time.clock/time.clock.gps/gps_time.ostream.pass.cpp
Mark de Wever cf50936b23
[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
2025-02-21 17:50:01 +01:00

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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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