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llvm-project/libcxx/test/std/time/time.syn/formatter.duration.pass.cpp
Mark de Wever 402eb2ef09 [libc++][format] Improves diagnostics. 
Improves both the compile-time and run-time errors.
At compile-time it does a bit more work to get more specific errors.
This could be done at run-time too, but that has a performance penalty.
Since it's expected most use-cases use format* instead of vformat* the
compile-time errors are more common.

For example when using

  std::format_to("{:-c}", 42);

Before compile output would contain

  std::__throw_format_error("The format-spec should consume the input or end with a '}'");

Now it contains

  std::__throw_format_error("The format specifier does not allow the sign option");

Given a better indication the sign option is not allowed. Note the
output is still not user-friendly; C++ doesn't have good facilities to
generate nice messages from the library.

In general all messages have been reviewed and improved, using a more
consistent style and using less terms used in the standard. For example

  format-spec -> format specifier
  arg-id -> argument index

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D152624
2023-07-18 21:11:12 +02:00

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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
//
//===----------------------------------------------------------------------===//
// XFAIL: LIBCXX-FREEBSD-FIXME
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: no-localization
// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
// XFAIL: availability-fp_to_chars-missing
// REQUIRES: locale.fr_FR.UTF-8
// REQUIRES: locale.ja_JP.UTF-8
// <chrono>
// template<class Rep, class Period, class charT>
// struct formatter<chrono::duration<Rep, Period>, charT>;
#include <chrono>
#include <format>
#include <cassert>
#include <concepts>
#include <locale>
#include <iostream>
#include <ratio>
#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;
check(SV("1as"), SV("{}"), std::chrono::duration<int, std::atto>(1));
check(SV("1fs"), SV("{}"), std::chrono::duration<int, std::femto>(1));
check(SV("1ps"), SV("{}"), std::chrono::duration<int, std::pico>(1));
check(SV("1ns"), SV("{}"), 1ns);
#ifndef TEST_HAS_NO_UNICODE
check(SV("1\u00b5s"), SV("{}"), 1us);
#else
check(SV("1us"), SV("{}"), 1us);
#endif
check(SV("1ms"), SV("{}"), 1ms);
check(SV("1cs"), SV("{}"), std::chrono::duration<int, std::centi>(1));
check(SV("1ds"), SV("{}"), std::chrono::duration<int, std::deci>(1));
check(SV("1s"), SV("{}"), 1s);
check(SV("1das"), SV("{}"), std::chrono::duration<int, std::deca>(1));
check(SV("1hs"), SV("{}"), std::chrono::duration<int, std::hecto>(1));
check(SV("1ks"), SV("{}"), std::chrono::duration<int, std::kilo>(1));
check(SV("1Ms"), SV("{}"), std::chrono::duration<int, std::mega>(1));
check(SV("1Gs"), SV("{}"), std::chrono::duration<int, std::giga>(1));
check(SV("1Ts"), SV("{}"), std::chrono::duration<int, std::tera>(1));
check(SV("1Ps"), SV("{}"), std::chrono::duration<int, std::peta>(1));
check(SV("1Es"), SV("{}"), std::chrono::duration<int, std::exa>(1));
check(SV("1min"), SV("{}"), 1min);
check(SV("1h"), SV("{}"), 1h);
check(SV("1d"), SV("{}"), std::chrono::duration<int, std::ratio<86400>>(1));
check(SV("1[42]s"), SV("{}"), std::chrono::duration<int, std::ratio<42>>(1));
check(SV("1[11]s"), SV("{}"), std::chrono::duration<int, std::ratio<33, 3>>(1));
check(SV("1[11/9]s"), SV("{}"), std::chrono::duration<int, std::ratio<11, 9>>(1));
}
template <class CharT>
static void test_valid_positive_integral_values() {
using namespace std::literals::chrono_literals;
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"
"%%j='%j'%t"
"%%Q='%Q'%t"
"%%q='%q'%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"
"%%j='%j'%t"
"%%Q='%Q'%t"
"%%q='%q'%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"
"%j='0'\t"
"%Q='0'\t"
"%q='s'\t"
"\n"),
fmt,
0s);
check(SV("%H='11'\t"
"%OH='11'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
"%p='AM'\t"
"%R='11:59'\t"
"%T='11:59:59'\t"
"%r='11:59:59 AM'\t"
"%X='11:59:59'\t"
"%EX='11:59:59'\t"
"%j='0'\t"
"%Q='43199'\t"
"%q='s'\t"
"\n"),
fmt,
11h + 59min + 59s);
check(SV("%H='12'\t"
"%OH='12'\t"
"%I='12'\t"
"%OI='12'\t"
"%M='00'\t"
"%OM='00'\t"
"%S='00'\t"
"%OS='00'\t"
"%p='PM'\t"
"%R='12:00'\t"
"%T='12:00:00'\t"
"%r='12:00:00 PM'\t"
"%X='12:00:00'\t"
"%EX='12:00:00'\t"
"%j='0'\t"
"%Q='12'\t"
"%q='h'\t"
"\n"),
fmt,
12h);
check(SV("%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
"%p='PM'\t"
"%R='23:59'\t"
"%T='23:59:59'\t"
"%r='11:59:59 PM'\t"
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
fmt,
23h + 59min + 59s);
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"
"%j='7'\t"
"%Q='7'\t"
"%q='d'\t"
"\n"),
fmt,
std::chrono::duration<int, std::ratio<86400>>(7));
// 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__)
"%r=''\t"
#else
"%r='12:00:00 '\t"
#endif
"%X='00:00:00'\t"
"%EX='00:00:00'\t"
"%j='0'\t"
"%Q='0'\t"
"%q='s'\t"
"\n"),
lfmt,
0s);
check(SV("%H='11'\t"
"%OH='11'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
#if defined(_AIX)
"%p='AM'\t"
#else
"%p=''\t"
#endif
"%R='11:59'\t"
"%T='11:59:59'\t"
#ifdef _WIN32
"%r='11:59:59'\t"
#elif defined(_AIX)
"%r='11:59:59 AM'\t"
#elif defined(__APPLE__)
"%r=''\t"
#else
"%r='11:59:59 '\t"
#endif
"%X='11:59:59'\t"
"%EX='11:59:59'\t"
"%j='0'\t"
"%Q='43199'\t"
"%q='s'\t"
"\n"),
lfmt,
11h + 59min + 59s);
check(SV("%H='12'\t"
"%OH='12'\t"
"%I='12'\t"
"%OI='12'\t"
"%M='00'\t"
"%OM='00'\t"
"%S='00'\t"
"%OS='00'\t"
#if defined(_AIX)
"%p='PM'\t"
#else
"%p=''\t"
#endif
"%R='12:00'\t"
"%T='12:00:00'\t"
#ifdef _WIN32
"%r='12:00:00'\t"
#elif defined(_AIX)
"%r='12:00:00 PM'\t"
#elif defined(__APPLE__)
"%r=''\t"
#else
"%r='12:00:00 '\t"
#endif
"%X='12:00:00'\t"
"%EX='12:00:00'\t"
"%j='0'\t"
"%Q='12'\t"
"%q='h'\t"
"\n"),
lfmt,
12h);
check(SV("%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
#if defined(_AIX)
"%p='PM'\t"
#else
"%p=''\t"
#endif
"%R='23:59'\t"
"%T='23:59:59'\t"
#if defined(_AIX)
"%r='11:59:59 PM'\t"
#elif defined(__APPLE__)
"%r=''\t"
#elif defined(_WIN32)
"%r='23:59:59'\t"
#else
"%r='11:59:59 '\t"
#endif
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
lfmt,
23h + 59min + 59s);
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__)
"%r=''\t"
#elif defined(_WIN32)
"%r='12:00:00'\t"
#else
"%r='12:00:00 '\t"
#endif
"%X='00:00:00'\t"
"%EX='00:00:00'\t"
"%j='7'\t"
"%Q='7'\t"
"%q='d'\t"
"\n"),
lfmt,
std::chrono::duration<int, std::ratio<86400>>(7));
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
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__)
"%r='12:00:00 AM'\t"
"%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
"%j='0'\t"
"%Q='0'\t"
"%q='s'\t"
"\n"),
lfmt,
0s);
check(loc,
SV("%H='11'\t"
"%OH='11'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
# if defined(__APPLE__)
"%p='AM'\t"
# else
"%p='午前'\t"
# endif
"%R='11:59'\t"
"%T='11:59:59'\t"
# if defined(__APPLE__)
"%r='11:59:59 AM'\t"
"%X='11時59分59秒'\t"
"%EX='11時59分59秒'\t"
# elif defined(_WIN32)
"%r='11:59:59'\t"
"%X='11:59:59'\t"
"%EX='11:59:59'\t"
# else
"%r='午前11:59:59'\t"
"%X='11:59:59'\t"
"%EX='11:59:59'\t"
# endif
"%j='0'\t"
"%Q='43199'\t"
"%q='s'\t"
"\n"),
lfmt,
11h + 59min + 59s);
check(loc,
SV("%H='12'\t"
"%OH='12'\t"
"%I='12'\t"
"%OI='12'\t"
"%M='00'\t"
"%OM='00'\t"
"%S='00'\t"
"%OS='00'\t"
# if defined(__APPLE__)
"%p='PM'\t"
# else
"%p='午後'\t"
# endif
"%R='12:00'\t"
"%T='12:00:00'\t"
# if defined(__APPLE__)
"%r='12:00:00 PM'\t"
"%X='12時00分00秒'\t"
"%EX='12時00分00秒'\t"
# else
# ifdef _WIN32
"%r='12:00:00'\t"
# else
"%r='午後12:00:00'\t"
# endif
"%X='12:00:00'\t"
"%EX='12:00:00'\t"
# endif
"%j='0'\t"
"%Q='12'\t"
"%q='h'\t"
"\n"),
lfmt,
12h);
check(loc,
SV("%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
# if defined(__APPLE__)
"%p='PM'\t"
# else
"%p='午後'\t"
# endif
"%R='23:59'\t"
"%T='23:59:59'\t"
# if defined(__APPLE__)
"%r='11:59:59 PM'\t"
"%X='23時59分59秒'\t"
"%EX='23時59分59秒'\t"
# else
# ifdef _WIN32
"%r='23:59:59'\t"
# else
"%r='午後11:59:59'\t"
# endif
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
# endif
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
lfmt,
23h + 59min + 59s);
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__)
"%r='12:00:00 AM'\t"
"%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
"%j='7'\t"
"%Q='7'\t"
"%q='d'\t"
"\n"),
lfmt,
std::chrono::duration<int, std::ratio<86400>>(7));
#else // defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
check(loc,
SV("%H='00'\t"
"%OH='〇'\t"
"%I='12'\t"
"%OI='十二'\t"
"%M='00'\t"
"%OM='〇'\t"
"%S='00'\t"
"%OS='〇'\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"
"%j='0'\t"
"%Q='0'\t"
"%q='s'\t"
"\n"),
lfmt,
0s);
check(loc,
SV("%H='11'\t"
"%OH='十一'\t"
"%I='11'\t"
"%OI='十一'\t"
"%M='59'\t"
"%OM='五十九'\t"
"%S='59'\t"
"%OS='五十九'\t"
"%p='午前'\t"
"%R='11:59'\t"
"%T='11:59:59'\t"
"%r='午前11時59分59秒'\t"
"%X='11時59分59秒'\t"
"%EX='11時59分59秒'\t"
"%j='0'\t"
"%Q='43199'\t"
"%q='s'\t"
"\n"),
lfmt,
11h + 59min + 59s);
check(loc,
SV("%H='12'\t"
"%OH='十二'\t"
"%I='12'\t"
"%OI='十二'\t"
"%M='00'\t"
"%OM='〇'\t"
"%S='00'\t"
"%OS='〇'\t"
"%p='午後'\t"
"%R='12:00'\t"
"%T='12:00:00'\t"
"%r='午後12時00分00秒'\t"
"%X='12時00分00秒'\t"
"%EX='12時00分00秒'\t"
"%j='0'\t"
"%Q='12'\t"
"%q='h'\t"
"\n"),
lfmt,
12h);
check(loc,
SV("%H='23'\t"
"%OH='二十三'\t"
"%I='11'\t"
"%OI='十一'\t"
"%M='59'\t"
"%OM='五十九'\t"
"%S='59'\t"
"%OS='五十九'\t"
"%p='午後'\t"
"%R='23:59'\t"
"%T='23:59:59'\t"
"%r='午後11時59分59秒'\t"
"%X='23時59分59秒'\t"
"%EX='23時59分59秒'\t"
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
lfmt,
23h + 59min + 59s);
check(loc,
SV("%H='00'\t"
"%OH='〇'\t"
"%I='12'\t"
"%OI='十二'\t"
"%M='00'\t"
"%OM='〇'\t"
"%S='00'\t"
"%OS='〇'\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"
"%j='7'\t"
"%Q='7'\t"
"%q='d'\t"
"\n"),
lfmt,
std::chrono::duration<int, std::ratio<86400>>(7));
#endif // defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_negative_integral_values() {
// [time.format]/4 The result of formatting a std::chrono::duration instance
// holding a negative value, or an hh_mm_ss object h for which
// h.is_negative() is true, is equivalent to the output of the corresponding
// positive value, with a STATICALLY-WIDEN<charT>("-") character sequence
// placed before the replacement of the initial conversion specifier.
//
// Note in this case %% is the initial conversion specifier.
using namespace std::literals::chrono_literals;
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"
"%%j='%j'%t"
"%%Q='%Q'%t"
"%%q='%q'%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"
"%%j='%j'%t"
"%%Q='%Q'%t"
"%%q='%q'%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='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
"%p='PM'\t"
"%R='23:59'\t"
"%T='23:59:59'\t"
"%r='11:59:59 PM'\t"
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
fmt,
-(23h + 59min + 59s));
// Use the global locale (fr_FR)
check(SV("-%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
#if defined(_AIX)
"%p='PM'\t"
#else
"%p=''\t"
#endif
"%R='23:59'\t"
"%T='23:59:59'\t"
#if defined(_AIX)
"%r='11:59:59 PM'\t"
#elif defined(__APPLE__)
"%r=''\t"
#elif defined(_WIN32)
"%r='23:59:59'\t"
#else
"%r='11:59:59 '\t"
#endif
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
lfmt,
-(23h + 59min + 59s));
// Use supplied locale (ja_JP). This locale has a different alternate.
#if defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
check(loc,
SV("-%H='23'\t"
"%OH='23'\t"
"%I='11'\t"
"%OI='11'\t"
"%M='59'\t"
"%OM='59'\t"
"%S='59'\t"
"%OS='59'\t"
# if defined(__APPLE__)
"%p='PM'\t"
# else
"%p='午後'\t"
# endif
"%R='23:59'\t"
"%T='23:59:59'\t"
# if defined(__APPLE__)
"%r='11:59:59 PM'\t"
"%X='23時59分59秒'\t"
"%EX='23時59分59秒'\t"
# elif defined(_WIN32)
"%r='23:59:59'\t"
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
# else
"%r='午後11:59:59'\t"
"%X='23:59:59'\t"
"%EX='23:59:59'\t"
# endif
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
lfmt,
-(23h + 59min + 59s));
#else // defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
check(loc,
SV("-%H='23'\t"
"%OH='二十三'\t"
"%I='11'\t"
"%OI='十一'\t"
"%M='59'\t"
"%OM='五十九'\t"
"%S='59'\t"
"%OS='五十九'\t"
"%p='午後'\t"
"%R='23:59'\t"
"%T='23:59:59'\t"
"%r='午後11時59分59秒'\t"
"%X='23時59分59秒'\t"
"%EX='23時59分59秒'\t"
"%j='0'\t"
"%Q='86399'\t"
"%q='s'\t"
"\n"),
lfmt,
-(23h + 59min + 59s));
#endif // defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_fractional_values() {
using namespace std::literals::chrono_literals;
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("00.000000001"), SV("{:%S}"), 1ns);
check(SV("00.000000501"), SV("{:%S}"), 501ns);
check(SV("00.000001000"), SV("{:%S}"), 1000ns);
check(SV("00.000000000001"), SV("{:%S}"), std::chrono::duration<int, std::pico>(1));
check(SV("00.000000000000001"), SV("{:%S}"), std::chrono::duration<int, std::femto>(1));
check(SV("00.000000000000000001"), SV("{:%S}"), std::chrono::duration<int, std::atto>(1));
check(SV("00.001"), SV("{:%S}"), 1ms);
check(SV("00.01"), SV("{:%S}"), std::chrono::duration<int, std::centi>(1));
check(SV("00.1"), SV("{:%S}"), std::chrono::duration<int, std::deci>(1));
check(SV("01.1"), SV("{:%S}"), std::chrono::duration<int, std::deci>(11));
check(SV("00.001"), SV("{:%S}"), std::chrono::duration<float, std::milli>(1.123456789));
check(SV("00.011"), SV("{:%S}"), std::chrono::duration<double, std::milli>(11.123456789));
check(SV("01"), SV("{:%S}"), std::chrono::duration<long double>(61.123456789));
check(SV("00.000000001"), SV("{:%OS}"), 1ns);
check(SV("00.000000501"), SV("{:%OS}"), 501ns);
check(SV("00.000001000"), SV("{:%OS}"), 1000ns);
check(SV("00.000000000001"), SV("{:%OS}"), std::chrono::duration<int, std::pico>(1));
check(SV("00.000000000000001"), SV("{:%OS}"), std::chrono::duration<int, std::femto>(1));
check(SV("00.000000000000000001"), SV("{:%OS}"), std::chrono::duration<int, std::atto>(1));
check(SV("00.001"), SV("{:%OS}"), 1ms);
check(SV("00.01"), SV("{:%OS}"), std::chrono::duration<int, std::centi>(1));
check(SV("00.1"), SV("{:%OS}"), std::chrono::duration<int, std::deci>(1));
check(SV("01.1"), SV("{:%OS}"), std::chrono::duration<int, std::deci>(11));
check(SV("00.001"), SV("{:%OS}"), std::chrono::duration<float, std::milli>(1.123456789));
check(SV("00.011"), SV("{:%OS}"), std::chrono::duration<double, std::milli>(11.123456789));
check(SV("01"), SV("{:%OS}"), std::chrono::duration<long double>(61.123456789));
check(SV("01:05:06.000000001"), SV("{:%T}"), 1h + 5min + 6s + 1ns);
check(SV("01:05:06.000000501"), SV("{:%T}"), 1h + 5min + 6s + 501ns);
check(SV("01:05:06.000001000"), SV("{:%T}"), 1h + 5min + 6s + 1000ns);
check(SV("01:05:06.001"), SV("{:%T}"), 1h + 5min + 6s + 1ms);
check(SV("01:05:06.01"), SV("{:%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::centi>(1));
check(SV("01:05:06.1"), SV("{:%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::deci>(1));
check(SV("01:05:07.1"), SV("{:%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::deci>(11));
check(
SV("00:01:02"), SV("{:%T}"), std::chrono::duration<float, std::ratio<60>>(1) + std::chrono::duration<float>(2.5));
check(SV("01:05:11"),
SV("{:%T}"),
std::chrono::duration<double, std::ratio<3600>>(1) + std::chrono::duration<double, std::ratio<60>>(5) +
std::chrono::duration<double>(11.123456789));
check(SV("01:06:01"),
SV("{:%T}"),
std::chrono::duration<long double, std::ratio<3600>>(1) +
std::chrono::duration<long double, std::ratio<60>>(5) + std::chrono::duration<long double>(61.123456789));
check(SV("0"), SV("{:%j}"), std::chrono::duration<float, std::milli>(1.));
check(SV("1"), SV("{:%j}"), std::chrono::duration<double, std::milli>(86'400'000));
check(SV("1"), SV("{:%j}"), std::chrono::duration<long double, std::ratio<7 * 24 * 3600>>(0.14285714286));
check(SV("1000000"), SV("{:%Q}"), 1'000'000s);
check(SV("1"), SV("{:%Q}"), std::chrono::duration<float, std::milli>(1.));
check(SV("1.123456789"), SV("{:.6%Q}"), std::chrono::duration<double, std::milli>(1.123456789));
check(SV("1.123456789"), SV("{:.9%Q}"), std::chrono::duration<long double, std::milli>(1.123456789));
// Use the global locale (fr_FR)
check(SV("00,000000001"), SV("{:L%S}"), 1ns);
check(SV("00,000000501"), SV("{:L%S}"), 501ns);
check(SV("00,000001000"), SV("{:L%S}"), 1000ns);
check(SV("00,000000000001"), SV("{:L%S}"), std::chrono::duration<int, std::pico>(1));
check(SV("00,000000000000001"), SV("{:L%S}"), std::chrono::duration<int, std::femto>(1));
check(SV("00,000000000000000001"), SV("{:L%S}"), std::chrono::duration<int, std::atto>(1));
check(SV("00,001"), SV("{:L%S}"), 1ms);
check(SV("00,01"), SV("{:L%S}"), std::chrono::duration<int, std::centi>(1));
check(SV("00,1"), SV("{:L%S}"), std::chrono::duration<int, std::deci>(1));
check(SV("01,1"), SV("{:L%S}"), std::chrono::duration<int, std::deci>(11));
check(SV("00,001"), SV("{:L%S}"), std::chrono::duration<float, std::milli>(1.123456789));
check(SV("00,011"), SV("{:L%S}"), std::chrono::duration<double, std::milli>(11.123456789));
check(SV("01"), SV("{:L%S}"), std::chrono::duration<long double>(61.123456789));
check(SV("00,000000001"), SV("{:L%OS}"), 1ns);
check(SV("00,000000501"), SV("{:L%OS}"), 501ns);
check(SV("00,000001000"), SV("{:L%OS}"), 1000ns);
check(SV("00,000000000001"), SV("{:L%OS}"), std::chrono::duration<int, std::pico>(1));
check(SV("00,000000000000001"), SV("{:L%OS}"), std::chrono::duration<int, std::femto>(1));
check(SV("00,000000000000000001"), SV("{:L%OS}"), std::chrono::duration<int, std::atto>(1));
check(SV("00,001"), SV("{:L%OS}"), 1ms);
check(SV("00,01"), SV("{:L%OS}"), std::chrono::duration<int, std::centi>(1));
check(SV("00,1"), SV("{:L%OS}"), std::chrono::duration<int, std::deci>(1));
check(SV("01,1"), SV("{:L%OS}"), std::chrono::duration<int, std::deci>(11));
check(SV("00,001"), SV("{:L%OS}"), std::chrono::duration<float, std::milli>(1.123456789));
check(SV("00,011"), SV("{:L%OS}"), std::chrono::duration<double, std::milli>(11.123456789));
check(SV("01"), SV("{:L%OS}"), std::chrono::duration<long double>(61.123456789));
check(SV("01:05:06,000000001"), SV("{:L%T}"), 1h + 5min + 6s + 1ns);
check(SV("01:05:06,000000501"), SV("{:L%T}"), 1h + 5min + 6s + 501ns);
check(SV("01:05:06,000001000"), SV("{:L%T}"), 1h + 5min + 6s + 1000ns);
check(SV("01:05:06,001"), SV("{:L%T}"), 1h + 5min + 6s + 1ms);
check(SV("01:05:06,01"), SV("{:L%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::centi>(1));
check(SV("01:05:06,1"), SV("{:L%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::deci>(1));
check(SV("01:05:07,1"), SV("{:L%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::deci>(11));
check(SV("00:01:02"),
SV("{:L%T}"),
std::chrono::duration<float, std::ratio<60>>(1) + std::chrono::duration<float>(2.5));
check(SV("01:05:11"),
SV("{:L%T}"),
std::chrono::duration<double, std::ratio<3600>>(1) + std::chrono::duration<double, std::ratio<60>>(5) +
std::chrono::duration<double>(11.123456789));
check(SV("01:06:01"),
SV("{:L%T}"),
std::chrono::duration<long double, std::ratio<3600>>(1) +
std::chrono::duration<long double, std::ratio<60>>(5) + std::chrono::duration<long double>(61.123456789));
check(SV("0"), SV("{:L%j}"), std::chrono::duration<float, std::milli>(1.));
check(SV("1"), SV("{:L%j}"), std::chrono::duration<double, std::milli>(86'400'000));
check(SV("1"), SV("{:L%j}"), std::chrono::duration<long double, std::ratio<7 * 24 * 3600>>(0.14285714286));
check(SV("1000000"), SV("{:L%Q}"), 1'000'000s); // The Standard mandates not localized.
check(SV("1"), SV("{:L%Q}"), std::chrono::duration<float, std::milli>(1.));
check(SV("1.123456789"), SV("{:.6L%Q}"), std::chrono::duration<double, std::milli>(1.123456789));
check(SV("1.123456789"), SV("{:.9L%Q}"), std::chrono::duration<long double, std::milli>(1.123456789));
// Use supplied locale (ja_JP). This locale has a different alternate.
check(loc, SV("00.000000001"), SV("{:L%S}"), 1ns);
check(loc, SV("00.000000501"), SV("{:L%S}"), 501ns);
check(loc, SV("00.000001000"), SV("{:L%S}"), 1000ns);
check(loc, SV("00.000000000001"), SV("{:L%S}"), std::chrono::duration<int, std::pico>(1));
check(loc, SV("00.000000000000001"), SV("{:L%S}"), std::chrono::duration<int, std::femto>(1));
check(loc, SV("00.000000000000000001"), SV("{:L%S}"), std::chrono::duration<int, std::atto>(1));
check(loc, SV("00.001"), SV("{:L%S}"), 1ms);
check(loc, SV("00.01"), SV("{:L%S}"), std::chrono::duration<int, std::centi>(1));
check(loc, SV("00.1"), SV("{:L%S}"), std::chrono::duration<int, std::deci>(1));
check(loc, SV("01.1"), SV("{:L%S}"), std::chrono::duration<int, std::deci>(11));
check(loc, SV("00.001"), SV("{:L%S}"), std::chrono::duration<float, std::milli>(1.123456789));
check(loc, SV("00.011"), SV("{:L%S}"), std::chrono::duration<double, std::milli>(11.123456789));
check(loc, SV("01"), SV("{:L%S}"), std::chrono::duration<long double>(61.123456789));
#if defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
check(SV("00.000000001"), SV("{:%OS}"), 1ns);
check(SV("00.000000501"), SV("{:%OS}"), 501ns);
check(SV("00.000001000"), SV("{:%OS}"), 1000ns);
check(SV("00.000000000001"), SV("{:%OS}"), std::chrono::duration<int, std::pico>(1));
check(SV("00.000000000000001"), SV("{:%OS}"), std::chrono::duration<int, std::femto>(1));
check(SV("00.000000000000000001"), SV("{:%OS}"), std::chrono::duration<int, std::atto>(1));
check(SV("00.001"), SV("{:%OS}"), 1ms);
check(SV("00.01"), SV("{:%OS}"), std::chrono::duration<int, std::centi>(1));
check(SV("00.1"), SV("{:%OS}"), std::chrono::duration<int, std::deci>(1));
check(SV("01.1"), SV("{:%OS}"), std::chrono::duration<int, std::deci>(11));
check(SV("00.001"), SV("{:%OS}"), std::chrono::duration<float, std::milli>(1.123456789));
check(SV("00.011"), SV("{:%OS}"), std::chrono::duration<double, std::milli>(11.123456789));
check(SV("01"), SV("{:%OS}"), std::chrono::duration<long double>(61.123456789));
#else // defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
check(loc, SV("〇.000000001"), SV("{:L%OS}"), 1ns);
check(loc, SV("〇.000000501"), SV("{:L%OS}"), 501ns);
check(loc, SV("〇.000001000"), SV("{:L%OS}"), 1000ns);
check(loc, SV("〇.000000000001"), SV("{:L%OS}"), std::chrono::duration<int, std::pico>(1));
check(loc, SV("〇.000000000000001"), SV("{:L%OS}"), std::chrono::duration<int, std::femto>(1));
check(loc, SV("〇.000000000000000001"), SV("{:L%OS}"), std::chrono::duration<int, std::atto>(1));
check(loc, SV("〇.001"), SV("{:L%OS}"), 1ms);
check(loc, SV("〇.01"), SV("{:L%OS}"), std::chrono::duration<int, std::centi>(1));
check(loc, SV("〇.1"), SV("{:L%OS}"), std::chrono::duration<int, std::deci>(1));
check(loc, SV("一.1"), SV("{:L%OS}"), std::chrono::duration<int, std::deci>(11));
check(loc, SV("〇.001"), SV("{:L%OS}"), std::chrono::duration<float, std::milli>(1.123456789));
check(loc, SV("〇.011"), SV("{:L%OS}"), std::chrono::duration<double, std::milli>(11.123456789));
check(loc, SV("一"), SV("{:L%OS}"), std::chrono::duration<long double>(61.123456789));
#endif // defined(__APPLE__) || defined(_AIX) || defined(_WIN32)
check(loc, SV("01:05:06.000000001"), SV("{:L%T}"), 1h + 5min + 6s + 1ns);
check(loc, SV("01:05:06.000000501"), SV("{:L%T}"), 1h + 5min + 6s + 501ns);
check(loc, SV("01:05:06.000001000"), SV("{:L%T}"), 1h + 5min + 6s + 1000ns);
check(loc, SV("01:05:06.001"), SV("{:L%T}"), 1h + 5min + 6s + 1ms);
check(loc, SV("01:05:06.01"), SV("{:L%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::centi>(1));
check(loc, SV("01:05:06.1"), SV("{:L%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::deci>(1));
check(loc, SV("01:05:07.1"), SV("{:L%T}"), 1h + 5min + 6s + std::chrono::duration<int, std::deci>(11));
check(loc,
SV("00:01:02"),
SV("{:L%T}"),
std::chrono::duration<float, std::ratio<60>>(1) + std::chrono::duration<float>(2.5));
check(loc,
SV("01:05:11"),
SV("{:L%T}"),
std::chrono::duration<double, std::ratio<3600>>(1) + std::chrono::duration<double, std::ratio<60>>(5) +
std::chrono::duration<double>(11.123456789));
check(loc,
SV("01:06:01"),
SV("{:L%T}"),
std::chrono::duration<long double, std::ratio<3600>>(1) +
std::chrono::duration<long double, std::ratio<60>>(5) + std::chrono::duration<long double>(61.123456789));
check(loc, SV("0"), SV("{:L%j}"), std::chrono::duration<float, std::milli>(1.));
check(loc, SV("1"), SV("{:L%j}"), std::chrono::duration<double, std::milli>(86'400'000));
check(loc, SV("1"), SV("{:L%j}"), std::chrono::duration<long double, std::ratio<7 * 24 * 3600>>(0.14285714286));
check(loc, SV("1000000"), SV("{:L%Q}"), 1'000'000s); // The Standard mandates not localized.
check(loc, SV("1"), SV("{:L%Q}"), std::chrono::duration<float, std::milli>(1.));
check(loc, SV("1.123456789"), SV("{:.6L%Q}"), std::chrono::duration<double, std::milli>(1.123456789));
check(loc, SV("1.123456789"), SV("{:.9L%Q}"), std::chrono::duration<long double, std::milli>(1.123456789));
std::locale::global(std::locale::classic());
}
template <class CharT>
static void test_valid_values() {
test_valid_positive_integral_values<CharT>();
test_valid_negative_integral_values<CharT>();
test_valid_fractional_values<CharT>();
}
template <class CharT>
static void test_pr62082() {
// Examples in https://llvm.org/PR62082
check(SV("39.223300"), SV("{:%S}"), std::chrono::duration<int, std::ratio<101, 103>>{40});
check(SV("01.4755859375"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 1024>>{1511});
// Test with all possible number of decimals [0, 18]. When it does not
// fit in 18 decimals it uses 6.
check(SV("05"), SV("{:%S}"), std::chrono::duration<float, std::ratio<1, 1>>{5}); // 0
check(SV("05.0"), SV("{:%S}"), std::chrono::duration<float, std::ratio<1, 2>>{10}); // 1
check(SV("05.5"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 2>>{11}); // 1
check(SV("01.00"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 4>>{4}); // 2
check(SV("01.50"), SV("{:%S}"), std::chrono::duration<double, std::ratio<1, 4>>{6}); // 2
check(SV("01.75"), SV("{:%S}"), std::chrono::duration<long double, std::ratio<1, 4>>{7}); // 2
check(SV("01.000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 8>>{8}); // 3
check(SV("01.0000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 16>>{16}); // 4
check(SV("01.00000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 32>>{32}); // 5
check(SV("01.000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 64>>{64}); // 6
check(SV("01.0000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 128>>{128}); // 7
check(SV("01.00000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 256>>{256}); // 8
check(SV("01.000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 512>>{512}); // 9
check(SV("01.0000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 1024>>{1024}); // 10
check(SV("01.00000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 2048>>{2048}); // 11
check(SV("01.000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 4096>>{4096}); // 12
check(SV("01.0000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 8192>>{8192}); // 13
check(SV("01.00000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 16384>>{16384}); // 14
check(SV("01.000000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 32768>>{32768}); // 15
check(SV("01.0000000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 65536>>{65536}); // 16
check(SV("01.00000000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 131072>>{131072}); // 17
check(SV("01.000000000000000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 262144>>{262144}); // 18
check(SV("01.000000"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 524288>>{524288}); // 19 -> 6
// Infinite number of decimals will use 6 decimals.
check(SV("00.111111"), SV("{:%S}"), std::chrono::duration<int, std::ratio<1, 9>>{1});
check(SV("00.111111"), SV("{:%S}"), std::chrono::duration<float, std::ratio<1, 9>>{1});
check(SV("00.111111"), SV("{:%S}"), std::chrono::duration<double, std::ratio<1, 9>>{1});
check(SV("00.111111"), SV("{:%S}"), std::chrono::duration<long double, std::ratio<1, 9>>{1});
}
template <class CharT>
static void test() {
using namespace std::literals::chrono_literals;
test_no_chrono_specs<CharT>();
test_valid_values<CharT>();
test_pr62082<CharT>();
check_invalid_types<CharT>(
{SV("H"), SV("I"), SV("j"), SV("M"), SV("n"), SV("O"), SV("p"), SV("q"), SV("Q"), SV("r"),
SV("R"), SV("S"), SV("t"), SV("T"), SV("X"), SV("EX"), SV("OH"), SV("OI"), SV("OM"), SV("OS")},
0ms);
check_exception("The format specifier expects a '%' or a '}'", SV("{:A"), 0ms);
check_exception("The chrono specifiers contain a '{'", SV("{:%%{"), 0ms);
check_exception("End of input while parsing a conversion specifier", SV("{:%"), 0ms);
check_exception("End of input while parsing the modifier E", SV("{:%E"), 0ms);
check_exception("End of input while parsing the modifier O", SV("{:%O"), 0ms);
// Make sure the the required values work, based on their minimum number of required bits per [time.syn].
check(SV("23:47:16.854775807"),
SV("{:%T}"),
std::chrono::nanoseconds{0x7fff'ffff'ffff'ffffll}); // 64 bit signed value max
check(SV("23:35:09.481983"),
SV("{:%T}"),
std::chrono::microseconds{0x003f'ffff'ffff'ffffll}); // 55 bit signed value max
check(SV("06:20:44.415"), SV("{:%T}"), std::chrono::milliseconds{0x0000'fff'ffff'ffffll}); // 45 bit signed value max
check(SV("01:53:03"), SV("{:%T}"), std::chrono::seconds{0x0000'0003'ffff'ffffll}); // 35 bit signed value max
check(SV("12:15:00"), SV("{:%T}"), std::chrono::minutes{0x0fff'ffff}); // 29 bit signed value max
check(SV("15:00:00"), SV("{:%T}"), std::chrono::hours{0x003f'ffff}); // 23 bit signed value max
check(SV("00:00:00"), SV("{:%T}"), std::chrono::days{0x0ff'ffff}); // 25 bit signed value max
check(SV("00:00:00"), SV("{:%T}"), std::chrono::weeks{0x003f'ffff}); // 22 bit signed value max
check(SV("21:11:42"), SV("{:%T}"), std::chrono::months{0x0007'ffff}); // 20 bit signed value max
check(SV("05:42:00"), SV("{:%T}"), std::chrono::years{0xffff}); // 17 bit signed value max
// Precision not allowed
check_exception("The format specifier expects a '%' or a '}'", SV("{:.3}"), 0ms);
}
int main(int, char**) {
test<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test<wchar_t>();
#endif
return 0;
}
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