1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03, c++11, c++14, c++17
10// UNSUPPORTED: no-localization
11
12// TODO FMT This test should not require std::to_chars(floating-point)
13// XFAIL: availability-fp_to_chars-missing
14
15// XFAIL: libcpp-has-no-experimental-tzdb
16
17// REQUIRES: locale.fr_FR.UTF-8
18// REQUIRES: locale.ja_JP.UTF-8
19
20// <chrono>
21//
22// template<class charT> struct formatter<chrono::sys_info, charT>;
23
24#include <chrono>
25#include <format>
26
27#include <cassert>
28#include <concepts>
29#include <locale>
30#include <iostream>
31#include <type_traits>
32
33#include "formatter_tests.h"
34#include "make_string.h"
35#include "platform_support.h" // locale name macros
36#include "test_macros.h"
37
38template <class CharT>
39static void test_no_chrono_specs() {
40// This test libc++ specific due to
41// [time.zone.info.sys]/7
42// Effects: Streams out the sys_info object r in an unspecified format.
43#ifdef _LIBCPP_VERSION
44 using namespace std::literals::chrono_literals;
45 namespace tz = std::chrono;
46
47 std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
48
49 // Non localized output
50
51 check(SV("[-10484-10-16 15:30:08, 14423-03-17 15:30:07) 00:00:00 0min \"TZ\""),
52 SV("{}"),
53 tz::sys_info{tz::sys_seconds::min(), tz::sys_seconds::max(), 0s, 0min, "TZ"});
54
55 check(SV("[1970-01-01 00:00:00, 2038-12-31 00:00:00) 12:23:45 -67min \"DMY\""),
56 SV("{}"),
57 tz::sys_info{static_cast<tz::sys_days>(tz::year_month_day{1970y, tz::January, 1d}),
58 static_cast<tz::sys_days>(tz::year_month_day{2038y, tz::December, 31d}),
59 12h + 23min + 45s,
60 -67min,
61 "DMY"});
62
63 std::locale::global(std::locale::classic());
64#endif // _LIBCPP_VERSION
65}
66
67template <class CharT>
68static void test_valid_values() {
69 using namespace std::literals::chrono_literals;
70
71 constexpr std::basic_string_view<CharT> fmt = SV("{:%%z='%z'%t%%Ez='%Ez'%t%%Oz='%Oz'%t%%Z='%Z'%n}");
72 constexpr std::basic_string_view<CharT> lfmt = SV("{:L%%z='%z'%t%%Ez='%Ez'%t%%Oz='%Oz'%t%%Z='%Z'%n}");
73
74 const std::locale loc(LOCALE_ja_JP_UTF_8);
75 std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
76
77 // Non localized output using C-locale
78 check(SV("%z='-0200'\t%Ez='-02:00'\t%Oz='-02:00'\t%Z='NEG'\n"),
79 fmt,
80 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, -2h, 0min, "NEG"});
81
82 check(SV("%z='+0000'\t%Ez='+00:00'\t%Oz='+00:00'\t%Z='ZERO'\n"),
83 fmt,
84 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, 0s, 0min, "ZERO"});
85
86 check(SV("%z='+1115'\t%Ez='+11:15'\t%Oz='+11:15'\t%Z='POS'\n"),
87 fmt,
88 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, 11h + 15min, 0min, "POS"});
89
90 // Use the global locale (fr_FR)
91 check(SV("%z='-0200'\t%Ez='-02:00'\t%Oz='-02:00'\t%Z='NEG'\n"),
92 lfmt,
93 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, -2h, 0min, "NEG"});
94
95 check(SV("%z='+0000'\t%Ez='+00:00'\t%Oz='+00:00'\t%Z='ZERO'\n"),
96 lfmt,
97 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, 0s, 0min, "ZERO"});
98
99 check(SV("%z='+1115'\t%Ez='+11:15'\t%Oz='+11:15'\t%Z='POS'\n"),
100 lfmt,
101 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, 11h + 15min, 0min, "POS"});
102
103 // Use supplied locale (ja_JP).
104 check(loc,
105 SV("%z='-0200'\t%Ez='-02:00'\t%Oz='-02:00'\t%Z='NEG'\n"),
106 lfmt,
107 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, -2h, 0min, "NEG"});
108
109 check(loc,
110 SV("%z='+0000'\t%Ez='+00:00'\t%Oz='+00:00'\t%Z='ZERO'\n"),
111 lfmt,
112 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, 0s, 0min, "ZERO"});
113
114 check(loc,
115 SV("%z='+1115'\t%Ez='+11:15'\t%Oz='+11:15'\t%Z='POS'\n"),
116 lfmt,
117 std::chrono::sys_info{std::chrono::sys_seconds{0s}, std::chrono::sys_seconds{0s}, 11h + 15min, 0min, "POS"});
118
119 std::locale::global(loc: std::locale::classic());
120}
121
122template <class CharT>
123static void test() {
124 test_no_chrono_specs<CharT>();
125 test_valid_values<CharT>();
126
127 check_invalid_types<CharT>({SV("z"), SV("Z"), SV("Ez"), SV("Oz")}, std::chrono::sys_info{});
128}
129
130int main(int, char**) {
131 test<char>();
132
133#ifndef TEST_HAS_NO_WIDE_CHARACTERS
134 test<wchar_t>();
135#endif
136
137 return 0;
138}
139

source code of libcxx/test/std/time/time.syn/formatter.sys_info.pass.cpp