Squashed 'external/fmt/' changes from 093b39ca5..353bd895a

353bd895a Add FMT_EXPORT on ranges.h customization points (#4476)
953cffa70 Replace memset with constexpr fill_n in bigint::align (#4471)
571c02d47 Add xchar support for std::byte formatter (#4480)
f4345467f Fix compilation on clang-21 / libc++-21 (#4477)
1ef834807 Properly constrain `detail::copy` optimization (#4474)
a5dccffa5 Add double and float support to scan test
4a149f513 Test non-SSO constexpr string formatting
067bc479b Avoid redundant work when processing UTF-8 strings (#4475)
730fd4d9a Remove redundant tests
5860688d7 Enable constexpr support for fmt::format (fmtlib#3403) (#4456)
46be88bc1 Cleanup FP formatting
cc8891490 Export fmt::dynamic_format_arg_store in fmt module (#4459)
fc0c76a07 Handle large precision
6332a3852 Bump ossf/scorecard-action from 2.4.0 to 2.4.2 (#4462)
02de29e00 Remove a reference to a compromised account
6d51c78c1 Cleanup FP formatting
0f4e9d0bd Cleanup FP formatting
d9d50495a Optimize the default FP formatting
befbc5fdb Fix ADL lookup for memory_buffer
8aa1d6a9f Minor cleanup
6d79757a3 Interpret precision as display width (#4443)
1ff0b7f5e Cleanup warning suppression
ea985e84f Remove some implicit conversions (#4447)
f7033da09 Avoid include locale inline if C++20 modules are enabled (#4451)
b723c021d Give useful error when misusing fmt::ptr. (#4453)
3ba3c390f Clarify that formatting of pointers is disallowed
ab161a71c Fix some typos in comments (#4448)
b5266fd3b Remove some redundant `const`s (#4445)
9b0ebd443 Cleanup base-test
7af94e559 Remove old gcc workaround
2924fcf8f Cleanup base-test
102752ad4 Update docs
a6cd72c9e Cleanup base-test
07885271a Minor cleanup
4999416e5 Fix reference_wrapper ambiguity with format_as (#4434)
55a8f6a4b Change component prefix for NSIS compatibility (#4442)
eb9a95d42 Clarify that formatting of pointers is disallowed
d5c33e4f4 Make template parameter order consistent
a2225f288 Remove unused include
b43b2f953 Cleanup standard formatters
1312b4a16 Cleanup standard formatters
4404dc05d Consolidate implementation details
7bb6fcb32 Bump version
59259a5fd Make a doc directory if it doesn't exist
542ea7c40 Clarify that Formatter parameter is deprecated
40626af88 Update version
7fdd6846b Bump version
6caff7ed9 Cleanup test
71a548387 Update changelog
448929d49 Update and apply clang-format
26d87edab Bump github/codeql-action from 3.28.13 to 3.28.16 (#4432)
505ee058f Update changelog
ccab41719 Update changelog
ec1349d34 Update changelog
0ed2a65a8 Clarify why we use __builtin_strlen instead of strlen
e22c94307 Update changelog
b252bad3c Update changelog
268083123 Cleanun string_view
8978ab09b Avoiding __builtin_strlen (#4429)
c936e2e44 Implement debug format for error_code
a7d7b894c Implement the s specifier for error_code
e98155a6f Remove redundant specializations
41b3bed4d Clarify why we don't use qualified names
67d9e4932 Update changelog
9db5e4df2 Don't specialize std::is_floating_point
906eaf2dd Make specifier order consistent
9f6c12c3d Remove deprecated localtime from docs
2d0518b5f Fix cmake error in pedantic mode (#4426)
c81cbed2b Simplify test
c7925241c Remove `core.h` from README (#4422)
c70913835 Add support for incomplete types
db405954c Remove `fmt/core.h` from docs (#4421)
0a917ee2f Minor comment tweak
969d4aef6 Update doc image
8061c7c8c Cleanup duration formatter
7b59df411 Remove redundant member
b8192d233 Fix build error with MSVC v141 (#4413)
e814b5fab Reduce template parametrization
ed0d216f7 Fix localization and formatting of timezone names
bd9554a29 Fix formatting of timezone names
f086dc0d2 Fix timezone handling in tm
f10b6dd81 Improve chrono formatting
f470b9c56 Cleanup chrono tests and set consistent TZ
b28214487 Fix handling of %Z
6d69f0c5f Improve chorno tests
da776c9a6 Test timezone
64db979e3 Added a missing FMT_STRING in fmt::println() (#4407)
5f2e61fdd Cleanup chrono detail
b3d45e1d3 Remove fmt_detail
5f6fb96df Bump github/codeql-action from 3.28.8 to 3.28.13 (#4403)
5199e0f88 Fix a flush issue on libstdc++
2f5843057 Move buffering tests to os-test
d5d32c1e8 Bazel support: Update platforms to 0.0.11 (#4400)
204661287 Improve local_time test
e1ab38336 Report an error when timezone is not available
b9e0e94a0 Enable more chrono tests on Windows
a81842428 Update changelog
f53055efe Revert "Workaround an ABI issue in spdlog"
b2dfcb2b8 Fix local_time test
7ac97cbd1 Enable some local_time tests and make them deterministic
17898794a Use fmt::local_time
443a8ef34 Deprecate fmt::localtime
3607e92dc Bump version
43e31614c Test ambiguous time
989826ce5 Update changelog
9d6e24c64 Fix handling of long with FMT_BUILTIN_TYPES=0
0843317e0 Update changelog
784eac839 Workaround an ABI issue in spdlog
6fdf225a3 Always inline value ctors in optimized gcc mode only
332da79bf Always inline value ctors
7b273fbb5 Minor cleanup
191c504b1 Cleanup build config
d13fb6092 Cleanup build config
dd780fde4 Add clang-3.4
37e647471 Fix dynamic named arg format spec handling (#4361)
77c0fc07d Switch to supported ubuntu image
9212ff6ca Apply coding conventions and use constexpr
864bdf963 Report error on duplicate named arg names (#4367)
b776cf66f Optimize `text_style` using bit packing (#4363)
bdbf957b9 Bump msys2/setup-msys2 from 2.25.0 to 2.27.0
577fd3be8 Fix TU-local entity exposition error in GCC 15
faac8b1fa Remove exports in std.h
123913715 Update version
8c1059b92 Update changelog
4e5aafbf4 Bump version
db30fb3b8 Update changelog
3401ce2be Fix ABI compatibility
7f7695524 Fix conflict with std::ignore (#4356)
251320fcb Add .vs folder to .gitignore (#4355)
94ab51cb8 Simplify implementation of `operator""_cf` (#4349)
0ca42e836 Workaround an MSVC v140 bug
ed27df576 Replace forward slashes by backslashes in BMI path for MSVC. (#4344)
d42a068db Apply coding conventions
f2cec917d Move is_compiled_string to public API (#4342)
d5b866e24 fix gcc 8.3 compile errors (#4336)
5676e408f Bump github/codeql-action from 3.27.0 to 3.28.8 (#4337)
71d24b564 Bump actions/upload-artifact from 4.4.0 to 4.6.0 (#4339)
c9267da4d Fix typo in `FMT_HAS_BUILTIN` check
373855c1b Clarify difference in FP representation
52eeeb52a Make exponent threshold depend on representation (#3649)
9cf9f38ed Update version
4946bdb72 Update changelog
01a5b56f0 Fix error of unitialized variable FMT_HEADERS
cb6fdf219 Restore constraint on map formatter (#4326)
f841ae61e Fix #4303: avoid instantiating formatter<const T> (#4325)
a3d05d70c Silence a constexpr warning when compiling with MSVC and /W4 (#4322)
41539c29f Workaround a bug in gcc 6 (#4318)
aabe63910 Tweak changelog
f90090be2 Update changelog
9ff9c695d Bump version
06ad1224e Update changelog
5f0572acd Workaround a compilation error on gcc 9.4
898d43857 Fix formatting into std::ostreambuf_iterator using a compiled format (#4312)
937b7c5c1 Add args() accessor back to fmt::format_context (#4310)
01914f038 Reduce size of basic_specs
c43da3570 Workaround an ICE when using modules with gcc 14.2 and earlier
8303d140a Update version
b0b3dc5ff Bump version
586ea06f0 Rename set_fill to copy_fill_from
5750f434f Update changelog
bfbdc2be9 Add parameter to the fallback to_sys function.
87e007267 Update changelog
d57040f94 Prefix components
21aa0956d Restore ABI compatibility
3f864a450 Address MSVC C4127 warning when formatting non unicode `tm` (#4299)

git-subtree-dir: external/fmt
git-subtree-split: 353bd895a2bf9d0b1bc5977dc002fb6e0cdb0960
This commit is contained in:
irisz64
2025-06-26 22:16:38 +02:00
parent 5ff285a9ed
commit fca3b644b3
44 changed files with 2166 additions and 1597 deletions

View File

@@ -22,21 +22,6 @@
#include "format.h"
namespace fmt_detail {
struct time_zone {
template <typename Duration, typename T>
auto to_sys(T)
-> std::chrono::time_point<std::chrono::system_clock, Duration> {
return {};
}
};
template <typename... T> inline auto current_zone(T...) -> time_zone* {
return nullptr;
}
template <typename... T> inline void _tzset(T...) {}
} // namespace fmt_detail
FMT_BEGIN_NAMESPACE
// Enable safe chrono durations, unless explicitly disabled.
@@ -261,7 +246,7 @@ namespace detail {
using utc_clock = std::chrono::utc_clock;
#else
struct utc_clock {
void to_sys();
template <typename T> void to_sys(T);
};
#endif
@@ -341,7 +326,7 @@ inline auto get_classic_locale() -> const std::locale& {
}
template <typename CodeUnit> struct codecvt_result {
static constexpr const size_t max_size = 32;
static constexpr size_t max_size = 32;
CodeUnit buf[max_size];
CodeUnit* end;
};
@@ -364,7 +349,7 @@ void write_codecvt(codecvt_result<CodeUnit>& out, string_view in,
template <typename OutputIt>
auto write_encoded_tm_str(OutputIt out, string_view in, const std::locale& loc)
-> OutputIt {
if (detail::use_utf8 && loc != get_classic_locale()) {
if (const_check(detail::use_utf8) && loc != get_classic_locale()) {
// char16_t and char32_t codecvts are broken in MSVC (linkage errors) and
// gcc-4.
#if FMT_MSC_VERSION != 0 || \
@@ -435,14 +420,11 @@ auto write(OutputIt out, const std::tm& time, const std::locale& loc,
return write_encoded_tm_str(out, string_view(buf.data(), buf.size()), loc);
}
template <typename Rep1, typename Rep2>
struct is_same_arithmetic_type
: public std::integral_constant<bool,
(std::is_integral<Rep1>::value &&
std::is_integral<Rep2>::value) ||
(std::is_floating_point<Rep1>::value &&
std::is_floating_point<Rep2>::value)> {
};
template <typename T, typename U>
using is_similar_arithmetic_type =
bool_constant<(std::is_integral<T>::value && std::is_integral<U>::value) ||
(std::is_floating_point<T>::value &&
std::is_floating_point<U>::value)>;
FMT_NORETURN inline void throw_duration_error() {
FMT_THROW(format_error("cannot format duration"));
@@ -501,9 +483,9 @@ auto duration_cast(std::chrono::duration<FromRep, FromPeriod> from) -> To {
#endif
}
template <
typename To, typename FromRep, typename FromPeriod,
FMT_ENABLE_IF(!is_same_arithmetic_type<FromRep, typename To::rep>::value)>
template <typename To, typename FromRep, typename FromPeriod,
FMT_ENABLE_IF(
!is_similar_arithmetic_type<FromRep, typename To::rep>::value)>
auto duration_cast(std::chrono::duration<FromRep, FromPeriod> from) -> To {
// Mixed integer <-> float cast is not supported by safe_duration_cast.
return std::chrono::duration_cast<To>(from);
@@ -519,12 +501,30 @@ auto to_time_t(sys_time<Duration> time_point) -> std::time_t {
.count();
}
// Workaround a bug in libstdc++ which sets __cpp_lib_chrono to 201907 without
// providing current_zone(): https://github.com/fmtlib/fmt/issues/4160.
template <typename T> FMT_CONSTEXPR auto has_current_zone() -> bool {
using namespace std::chrono;
using namespace fmt_detail;
return !std::is_same<decltype(current_zone()), fmt_detail::time_zone*>::value;
namespace tz {
// DEPRECATED!
struct time_zone {
template <typename Duration, typename LocalTime>
auto to_sys(LocalTime) -> sys_time<Duration> {
return {};
}
};
template <typename... T> auto current_zone(T...) -> time_zone* {
return nullptr;
}
template <typename... T> void _tzset(T...) {}
} // namespace tz
// DEPRECATED!
inline void tzset_once() {
static bool init = []() {
using namespace tz;
_tzset();
return false;
}();
ignore_unused(init);
}
} // namespace detail
@@ -535,7 +535,7 @@ FMT_BEGIN_EXPORT
* expressed in local time. Unlike `std::localtime`, this function is
* thread-safe on most platforms.
*/
inline auto localtime(std::time_t time) -> std::tm {
FMT_DEPRECATED inline auto localtime(std::time_t time) -> std::tm {
struct dispatcher {
std::time_t time_;
std::tm tm_;
@@ -572,11 +572,11 @@ inline auto localtime(std::time_t time) -> std::tm {
}
#if FMT_USE_LOCAL_TIME
template <typename Duration,
FMT_ENABLE_IF(detail::has_current_zone<Duration>())>
inline auto localtime(std::chrono::local_time<Duration> time) -> std::tm {
template <typename Duration>
FMT_DEPRECATED auto localtime(std::chrono::local_time<Duration> time)
-> std::tm {
using namespace std::chrono;
using namespace fmt_detail;
using namespace detail::tz;
return localtime(detail::to_time_t(current_zone()->to_sys<Duration>(time)));
}
#endif
@@ -652,7 +652,7 @@ inline void write_digit2_separated(char* buf, unsigned a, unsigned b,
// Add ASCII '0' to each digit byte and insert separators.
digits |= 0x3030003030003030 | (usep << 16) | (usep << 40);
constexpr const size_t len = 8;
constexpr size_t len = 8;
if (const_check(is_big_endian())) {
char tmp[len];
std::memcpy(tmp, &digits, len);
@@ -911,7 +911,14 @@ template <typename Derived> struct null_chrono_spec_handler {
FMT_CONSTEXPR void on_tz_name() { unsupported(); }
};
struct tm_format_checker : null_chrono_spec_handler<tm_format_checker> {
class tm_format_checker : public null_chrono_spec_handler<tm_format_checker> {
private:
bool has_timezone_ = false;
public:
constexpr explicit tm_format_checker(bool has_timezone)
: has_timezone_(has_timezone) {}
FMT_NORETURN inline void unsupported() {
FMT_THROW(format_error("no format"));
}
@@ -949,8 +956,12 @@ struct tm_format_checker : null_chrono_spec_handler<tm_format_checker> {
FMT_CONSTEXPR void on_24_hour_time() {}
FMT_CONSTEXPR void on_iso_time() {}
FMT_CONSTEXPR void on_am_pm() {}
FMT_CONSTEXPR void on_utc_offset(numeric_system) {}
FMT_CONSTEXPR void on_tz_name() {}
FMT_CONSTEXPR void on_utc_offset(numeric_system) {
if (!has_timezone_) FMT_THROW(format_error("no timezone"));
}
FMT_CONSTEXPR void on_tz_name() {
if (!has_timezone_) FMT_THROW(format_error("no timezone"));
}
};
inline auto tm_wday_full_name(int wday) -> const char* {
@@ -980,24 +991,27 @@ inline auto tm_mon_short_name(int mon) -> const char* {
}
template <typename T, typename = void>
struct has_member_data_tm_gmtoff : std::false_type {};
struct has_tm_gmtoff : std::false_type {};
template <typename T>
struct has_member_data_tm_gmtoff<T, void_t<decltype(T::tm_gmtoff)>>
: std::true_type {};
struct has_tm_gmtoff<T, void_t<decltype(T::tm_gmtoff)>> : std::true_type {};
template <typename T, typename = void>
struct has_member_data_tm_zone : std::false_type {};
template <typename T, typename = void> struct has_tm_zone : std::false_type {};
template <typename T>
struct has_member_data_tm_zone<T, void_t<decltype(T::tm_zone)>>
: std::true_type {};
struct has_tm_zone<T, void_t<decltype(T::tm_zone)>> : std::true_type {};
inline void tzset_once() {
static bool init = []() {
using namespace fmt_detail;
_tzset();
return false;
}();
ignore_unused(init);
template <typename T, FMT_ENABLE_IF(has_tm_zone<T>::value)>
bool set_tm_zone(T& time, char* tz) {
time.tm_zone = tz;
return true;
}
template <typename T, FMT_ENABLE_IF(!has_tm_zone<T>::value)>
bool set_tm_zone(T&, char*) {
return false;
}
inline char* utc() {
static char tz[] = "UTC";
return tz;
}
// Converts value to Int and checks that it's in the range [0, upper).
@@ -1005,7 +1019,7 @@ template <typename T, typename Int, FMT_ENABLE_IF(std::is_integral<T>::value)>
inline auto to_nonnegative_int(T value, Int upper) -> Int {
if (!std::is_unsigned<Int>::value &&
(value < 0 || to_unsigned(value) > to_unsigned(upper))) {
FMT_THROW(fmt::format_error("chrono value is out of range"));
FMT_THROW(format_error("chrono value is out of range"));
}
return static_cast<Int>(value);
}
@@ -1090,7 +1104,7 @@ void write_fractional_seconds(OutputIt& out, Duration d, int precision = -1) {
// Format subseconds which are given as a floating point type with an
// appropriate number of digits. We cannot pass the Duration here, as we
// explicitly need to pass the Rep value in the chrono_formatter.
// explicitly need to pass the Rep value in the duration_formatter.
template <typename Duration>
void write_floating_seconds(memory_buffer& buf, Duration duration,
int num_fractional_digits = -1) {
@@ -1124,7 +1138,7 @@ class tm_writer {
static constexpr int days_per_week = 7;
const std::locale& loc_;
const bool is_classic_;
bool is_classic_;
OutputIt out_;
const Duration* subsecs_;
const std::tm& tm_;
@@ -1160,8 +1174,8 @@ class tm_writer {
}
auto tm_hour12() const noexcept -> int {
const auto h = tm_hour();
const auto z = h < 12 ? h : h - 12;
auto h = tm_hour();
auto z = h < 12 ? h : h - 12;
return z == 0 ? 12 : z;
}
@@ -1177,11 +1191,11 @@ class tm_writer {
// Algorithm: https://en.wikipedia.org/wiki/ISO_week_date.
auto iso_year_weeks(long long curr_year) const noexcept -> int {
const auto prev_year = curr_year - 1;
const auto curr_p =
auto prev_year = curr_year - 1;
auto curr_p =
(curr_year + curr_year / 4 - curr_year / 100 + curr_year / 400) %
days_per_week;
const auto prev_p =
auto prev_p =
(prev_year + prev_year / 4 - prev_year / 100 + prev_year / 400) %
days_per_week;
return 52 + ((curr_p == 4 || prev_p == 3) ? 1 : 0);
@@ -1191,15 +1205,15 @@ class tm_writer {
days_per_week;
}
auto tm_iso_week_year() const noexcept -> long long {
const auto year = tm_year();
const auto w = iso_week_num(tm_yday(), tm_wday());
auto year = tm_year();
auto w = iso_week_num(tm_yday(), tm_wday());
if (w < 1) return year - 1;
if (w > iso_year_weeks(year)) return year + 1;
return year;
}
auto tm_iso_week_of_year() const noexcept -> int {
const auto year = tm_year();
const auto w = iso_week_num(tm_yday(), tm_wday());
auto year = tm_year();
auto w = iso_week_num(tm_yday(), tm_wday());
if (w < 1) return iso_year_weeks(year - 1);
if (w > iso_year_weeks(year)) return 1;
return w;
@@ -1236,9 +1250,8 @@ class tm_writer {
uint32_or_64_or_128_t<long long> n = to_unsigned(year);
const int num_digits = count_digits(n);
if (negative && pad == pad_type::zero) *out_++ = '-';
if (width > num_digits) {
if (width > num_digits)
out_ = detail::write_padding(out_, pad, width - num_digits);
}
if (negative && pad != pad_type::zero) *out_++ = '-';
out_ = format_decimal<Char>(out_, n, num_digits);
}
@@ -1259,45 +1272,22 @@ class tm_writer {
write2(static_cast<int>(offset % 60));
}
template <typename T, FMT_ENABLE_IF(has_member_data_tm_gmtoff<T>::value)>
void format_utc_offset_impl(const T& tm, numeric_system ns) {
template <typename T, FMT_ENABLE_IF(has_tm_gmtoff<T>::value)>
void format_utc_offset(const T& tm, numeric_system ns) {
write_utc_offset(tm.tm_gmtoff, ns);
}
template <typename T, FMT_ENABLE_IF(!has_member_data_tm_gmtoff<T>::value)>
void format_utc_offset_impl(const T& tm, numeric_system ns) {
#if defined(_WIN32) && defined(_UCRT)
tzset_once();
long offset = 0;
_get_timezone(&offset);
if (tm.tm_isdst) {
long dstbias = 0;
_get_dstbias(&dstbias);
offset += dstbias;
}
write_utc_offset(-offset, ns);
#else
if (ns == numeric_system::standard) return format_localized('z');
// Extract timezone offset from timezone conversion functions.
std::tm gtm = tm;
std::time_t gt = std::mktime(&gtm);
std::tm ltm = gmtime(gt);
std::time_t lt = std::mktime(&ltm);
long long offset = gt - lt;
write_utc_offset(offset, ns);
#endif
template <typename T, FMT_ENABLE_IF(!has_tm_gmtoff<T>::value)>
void format_utc_offset(const T&, numeric_system ns) {
write_utc_offset(0, ns);
}
template <typename T, FMT_ENABLE_IF(has_member_data_tm_zone<T>::value)>
void format_tz_name_impl(const T& tm) {
if (is_classic_)
out_ = write_tm_str<Char>(out_, tm.tm_zone, loc_);
else
format_localized('Z');
template <typename T, FMT_ENABLE_IF(has_tm_zone<T>::value)>
void format_tz_name(const T& tm) {
out_ = write_tm_str<Char>(out_, tm.tm_zone, loc_);
}
template <typename T, FMT_ENABLE_IF(!has_member_data_tm_zone<T>::value)>
void format_tz_name_impl(const T&) {
format_localized('Z');
template <typename T, FMT_ENABLE_IF(!has_tm_zone<T>::value)>
void format_tz_name(const T&) {
out_ = std::copy_n(utc(), 3, out_);
}
void format_localized(char format, char modifier = 0) {
@@ -1408,8 +1398,8 @@ class tm_writer {
out_ = copy<Char>(std::begin(buf) + offset, std::end(buf), out_);
}
void on_utc_offset(numeric_system ns) { format_utc_offset_impl(tm_, ns); }
void on_tz_name() { format_tz_name_impl(tm_); }
void on_utc_offset(numeric_system ns) { format_utc_offset(tm_, ns); }
void on_tz_name() { format_tz_name(tm_); }
void on_year(numeric_system ns, pad_type pad) {
if (is_classic_ || ns == numeric_system::standard)
@@ -1483,11 +1473,10 @@ class tm_writer {
void on_day_of_year(pad_type pad) {
auto yday = tm_yday() + 1;
auto digit1 = yday / 100;
if (digit1 != 0) {
if (digit1 != 0)
write1(digit1);
} else {
else
out_ = detail::write_padding(out_, pad);
}
write2(yday % 100, pad);
}
@@ -1624,18 +1613,16 @@ template <typename Rep, typename Period,
FMT_ENABLE_IF(std::is_integral<Rep>::value)>
inline auto get_milliseconds(std::chrono::duration<Rep, Period> d)
-> std::chrono::duration<Rep, std::milli> {
// this may overflow and/or the result may not fit in the
// target type.
// This may overflow and/or the result may not fit in the target type.
#if FMT_SAFE_DURATION_CAST
using CommonSecondsType =
using common_seconds_type =
typename std::common_type<decltype(d), std::chrono::seconds>::type;
const auto d_as_common = detail::duration_cast<CommonSecondsType>(d);
const auto d_as_whole_seconds =
auto d_as_common = detail::duration_cast<common_seconds_type>(d);
auto d_as_whole_seconds =
detail::duration_cast<std::chrono::seconds>(d_as_common);
// this conversion should be nonproblematic
const auto diff = d_as_common - d_as_whole_seconds;
const auto ms =
detail::duration_cast<std::chrono::duration<Rep, std::milli>>(diff);
// This conversion should be nonproblematic.
auto diff = d_as_common - d_as_whole_seconds;
auto ms = detail::duration_cast<std::chrono::duration<Rep, std::milli>>(diff);
return ms;
#else
auto s = detail::duration_cast<std::chrono::seconds>(d);
@@ -1707,32 +1694,28 @@ class get_locale {
}
};
template <typename FormatContext, typename OutputIt, typename Rep,
typename Period>
struct chrono_formatter {
FormatContext& context;
OutputIt out;
int precision;
bool localized = false;
template <typename Char, typename Rep, typename Period>
struct duration_formatter {
using iterator = basic_appender<Char>;
iterator out;
// rep is unsigned to avoid overflow.
using rep =
conditional_t<std::is_integral<Rep>::value && sizeof(Rep) < sizeof(int),
unsigned, typename make_unsigned_or_unchanged<Rep>::type>;
rep val;
int precision;
locale_ref locale;
bool localized = false;
using seconds = std::chrono::duration<rep>;
seconds s;
using milliseconds = std::chrono::duration<rep, std::milli>;
bool negative;
using char_type = typename FormatContext::char_type;
using tm_writer_type = tm_writer<OutputIt, char_type>;
using tm_writer_type = tm_writer<iterator, Char>;
chrono_formatter(FormatContext& ctx, OutputIt o,
std::chrono::duration<Rep, Period> d)
: context(ctx),
out(o),
val(static_cast<rep>(d.count())),
negative(false) {
duration_formatter(iterator o, std::chrono::duration<Rep, Period> d,
locale_ref loc)
: out(o), val(static_cast<rep>(d.count())), locale(loc), negative(false) {
if (d.count() < 0) {
val = 0 - val;
negative = true;
@@ -1746,19 +1729,16 @@ struct chrono_formatter {
// returns true if nan or inf, writes to out.
auto handle_nan_inf() -> bool {
if (isfinite(val)) {
return false;
}
if (isfinite(val)) return false;
if (isnan(val)) {
write_nan();
return true;
}
// must be +-inf
if (val > 0) {
write_pinf();
} else {
write_ninf();
}
if (val > 0)
std::copy_n("inf", 3, out);
else
std::copy_n("-inf", 4, out);
return true;
}
@@ -1786,10 +1766,9 @@ struct chrono_formatter {
}
void write_sign() {
if (negative) {
*out++ = '-';
negative = false;
}
if (!negative) return;
*out++ = '-';
negative = false;
}
void write(Rep value, int width, pad_type pad = pad_type::zero) {
@@ -1801,24 +1780,22 @@ struct chrono_formatter {
if (width > num_digits) {
out = detail::write_padding(out, pad, width - num_digits);
}
out = format_decimal<char_type>(out, n, num_digits);
out = format_decimal<Char>(out, n, num_digits);
}
void write_nan() { std::copy_n("nan", 3, out); }
void write_pinf() { std::copy_n("inf", 3, out); }
void write_ninf() { std::copy_n("-inf", 4, out); }
template <typename Callback, typename... Args>
void format_tm(const tm& time, Callback cb, Args... args) {
if (isnan(val)) return write_nan();
get_locale loc(localized, context.locale());
get_locale loc(localized, locale);
auto w = tm_writer_type(loc, out, time);
(w.*cb)(args...);
out = w.out();
}
void on_text(const char_type* begin, const char_type* end) {
copy<char_type>(begin, end, out);
void on_text(const Char* begin, const Char* end) {
copy<Char>(begin, end, out);
}
// These are not implemented because durations don't have date information.
@@ -1888,13 +1865,12 @@ struct chrono_formatter {
write_floating_seconds(buf, std::chrono::duration<rep, Period>(val),
precision);
if (negative) *out++ = '-';
if (buf.size() < 2 || buf[1] == '.') {
if (buf.size() < 2 || buf[1] == '.')
out = detail::write_padding(out, pad);
}
out = copy<char_type>(buf.begin(), buf.end(), out);
out = copy<Char>(buf.begin(), buf.end(), out);
} else {
write(second(), 2, pad);
write_fractional_seconds<char_type>(
write_fractional_seconds<Char>(
out, std::chrono::duration<rep, Period>(val), precision);
}
return;
@@ -1936,12 +1912,10 @@ struct chrono_formatter {
void on_duration_value() {
if (handle_nan_inf()) return;
write_sign();
out = format_duration_value<char_type>(out, val, precision);
out = format_duration_value<Char>(out, val, precision);
}
void on_duration_unit() {
out = format_duration_unit<char_type, Period>(out);
}
void on_duration_unit() { out = format_duration_unit<Char, Period>(out); }
};
} // namespace detail
@@ -2011,12 +1985,11 @@ class year_month_day {
constexpr auto month() const noexcept -> fmt::month { return month_; }
constexpr auto day() const noexcept -> fmt::day { return day_; }
};
#endif
#endif // __cpp_lib_chrono >= 201907
template <typename Char>
struct formatter<weekday, Char> : private formatter<std::tm, Char> {
private:
bool localized_ = false;
bool use_tm_formatter_ = false;
public:
@@ -2024,8 +1997,7 @@ struct formatter<weekday, Char> : private formatter<std::tm, Char> {
auto it = ctx.begin(), end = ctx.end();
if (it != end && *it == 'L') {
++it;
localized_ = true;
return it;
this->set_localized();
}
use_tm_formatter_ = it != end && *it != '}';
return use_tm_formatter_ ? formatter<std::tm, Char>::parse(ctx) : it;
@@ -2036,7 +2008,7 @@ struct formatter<weekday, Char> : private formatter<std::tm, Char> {
auto time = std::tm();
time.tm_wday = static_cast<int>(wd.c_encoding());
if (use_tm_formatter_) return formatter<std::tm, Char>::format(time, ctx);
detail::get_locale loc(localized_, ctx.locale());
detail::get_locale loc(this->localized(), ctx.locale());
auto w = detail::tm_writer<decltype(ctx.out()), Char>(loc, ctx.out(), time);
w.on_abbr_weekday();
return w.out();
@@ -2070,7 +2042,6 @@ struct formatter<day, Char> : private formatter<std::tm, Char> {
template <typename Char>
struct formatter<month, Char> : private formatter<std::tm, Char> {
private:
bool localized_ = false;
bool use_tm_formatter_ = false;
public:
@@ -2078,8 +2049,7 @@ struct formatter<month, Char> : private formatter<std::tm, Char> {
auto it = ctx.begin(), end = ctx.end();
if (it != end && *it == 'L') {
++it;
localized_ = true;
return it;
this->set_localized();
}
use_tm_formatter_ = it != end && *it != '}';
return use_tm_formatter_ ? formatter<std::tm, Char>::parse(ctx) : it;
@@ -2090,7 +2060,7 @@ struct formatter<month, Char> : private formatter<std::tm, Char> {
auto time = std::tm();
time.tm_mon = static_cast<int>(static_cast<unsigned>(m)) - 1;
if (use_tm_formatter_) return formatter<std::tm, Char>::format(time, ctx);
detail::get_locale loc(localized_, ctx.locale());
detail::get_locale loc(this->localized(), ctx.locale());
auto w = detail::tm_writer<decltype(ctx.out()), Char>(loc, ctx.out(), time);
w.on_abbr_month();
return w.out();
@@ -2154,7 +2124,6 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
format_specs specs_;
detail::arg_ref<Char> width_ref_;
detail::arg_ref<Char> precision_ref_;
bool localized_ = false;
basic_string_view<Char> fmt_;
public:
@@ -2177,7 +2146,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
it = detail::parse_precision(it, end, specs_, precision_ref_, ctx);
}
if (it != end && *it == 'L') {
localized_ = true;
specs_.set_localized();
++it;
}
end = detail::parse_chrono_format(it, end, checker);
@@ -2204,11 +2173,10 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
out = detail::format_duration_value<Char>(out, d.count(), precision);
detail::format_duration_unit<Char, Period>(out);
} else {
using chrono_formatter =
detail::chrono_formatter<FormatContext, decltype(out), Rep, Period>;
auto f = chrono_formatter(ctx, out, d);
auto f =
detail::duration_formatter<Char, Rep, Period>(out, d, ctx.locale());
f.precision = precision;
f.localized = localized_;
f.localized = specs_.localized();
detail::parse_chrono_format(begin, end, f);
}
return detail::write(
@@ -2220,30 +2188,15 @@ template <typename Char> struct formatter<std::tm, Char> {
private:
format_specs specs_;
detail::arg_ref<Char> width_ref_;
basic_string_view<Char> fmt_ =
detail::string_literal<Char, '%', 'F', ' ', '%', 'T'>();
protected:
basic_string_view<Char> fmt_;
auto localized() const -> bool { return specs_.localized(); }
FMT_CONSTEXPR void set_localized() { specs_.set_localized(); }
template <typename Duration, typename FormatContext>
auto do_format(const std::tm& tm, FormatContext& ctx,
const Duration* subsecs) const -> decltype(ctx.out()) {
auto specs = specs_;
auto buf = basic_memory_buffer<Char>();
auto out = basic_appender<Char>(buf);
detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_,
ctx);
auto loc_ref = ctx.locale();
detail::get_locale loc(static_cast<bool>(loc_ref), loc_ref);
auto w =
detail::tm_writer<decltype(out), Char, Duration>(loc, out, tm, subsecs);
detail::parse_chrono_format(fmt_.begin(), fmt_.end(), w);
return detail::write(
ctx.out(), basic_string_view<Char>(buf.data(), buf.size()), specs);
}
public:
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
FMT_CONSTEXPR auto do_parse(parse_context<Char>& ctx, bool has_timezone)
-> const Char* {
auto it = ctx.begin(), end = ctx.end();
if (it == end || *it == '}') return it;
@@ -2256,12 +2209,41 @@ template <typename Char> struct formatter<std::tm, Char> {
if (it == end) return it;
}
end = detail::parse_chrono_format(it, end, detail::tm_format_checker());
if (*it == 'L') {
specs_.set_localized();
++it;
}
end = detail::parse_chrono_format(it, end,
detail::tm_format_checker(has_timezone));
// Replace the default format string only if the new spec is not empty.
if (end != it) fmt_ = {it, detail::to_unsigned(end - it)};
return end;
}
template <typename Duration, typename FormatContext>
auto do_format(const std::tm& tm, FormatContext& ctx,
const Duration* subsecs) const -> decltype(ctx.out()) {
auto specs = specs_;
auto buf = basic_memory_buffer<Char>();
auto out = basic_appender<Char>(buf);
detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_,
ctx);
auto loc_ref = specs.localized() ? ctx.locale() : detail::locale_ref();
detail::get_locale loc(static_cast<bool>(loc_ref), loc_ref);
auto w = detail::tm_writer<basic_appender<Char>, Char, Duration>(
loc, out, tm, subsecs);
detail::parse_chrono_format(fmt_.begin(), fmt_.end(), w);
return detail::write(
ctx.out(), basic_string_view<Char>(buf.data(), buf.size()), specs);
}
public:
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return do_parse(ctx, detail::has_tm_gmtoff<std::tm>::value);
}
template <typename FormatContext>
auto format(const std::tm& tm, FormatContext& ctx) const
-> decltype(ctx.out()) {
@@ -2269,10 +2251,11 @@ template <typename Char> struct formatter<std::tm, Char> {
}
};
// DEPRECATED! Reversed order of template parameters.
template <typename Char, typename Duration>
struct formatter<sys_time<Duration>, Char> : formatter<std::tm, Char> {
FMT_CONSTEXPR formatter() {
this->fmt_ = detail::string_literal<Char, '%', 'F', ' ', '%', 'T'>();
struct formatter<sys_time<Duration>, Char> : private formatter<std::tm, Char> {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return this->do_parse(ctx, true);
}
template <typename FormatContext>
@@ -2283,6 +2266,7 @@ struct formatter<sys_time<Duration>, Char> : formatter<std::tm, Char> {
if (detail::const_check(
period::num == 1 && period::den == 1 &&
!std::is_floating_point<typename Duration::rep>::value)) {
detail::set_tm_zone(tm, detail::utc());
return formatter<std::tm, Char>::format(tm, ctx);
}
Duration epoch = val.time_since_epoch();
@@ -2290,11 +2274,13 @@ struct formatter<sys_time<Duration>, Char> : formatter<std::tm, Char> {
epoch - detail::duration_cast<std::chrono::seconds>(epoch));
if (subsecs.count() < 0) {
auto second = detail::duration_cast<Duration>(std::chrono::seconds(1));
if (tm.tm_sec != 0)
if (tm.tm_sec != 0) {
--tm.tm_sec;
else
} else {
tm = gmtime(val - second);
subsecs += detail::duration_cast<Duration>(std::chrono::seconds(1));
detail::set_tm_zone(tm, detail::utc());
}
subsecs += second;
}
return formatter<std::tm, Char>::do_format(tm, ctx, &subsecs);
}
@@ -2312,23 +2298,29 @@ struct formatter<utc_time<Duration>, Char>
};
template <typename Duration, typename Char>
struct formatter<local_time<Duration>, Char> : formatter<std::tm, Char> {
FMT_CONSTEXPR formatter() {
this->fmt_ = detail::string_literal<Char, '%', 'F', ' ', '%', 'T'>();
struct formatter<local_time<Duration>, Char>
: private formatter<std::tm, Char> {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return this->do_parse(ctx, false);
}
template <typename FormatContext>
auto format(local_time<Duration> val, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto time_since_epoch = val.time_since_epoch();
auto seconds_since_epoch =
detail::duration_cast<std::chrono::seconds>(time_since_epoch);
// Use gmtime to prevent time zone conversion since local_time has an
// unspecified time zone.
std::tm t = gmtime(seconds_since_epoch.count());
using period = typename Duration::period;
if (period::num == 1 && period::den == 1 &&
!std::is_floating_point<typename Duration::rep>::value) {
return formatter<std::tm, Char>::format(localtime(val), ctx);
return formatter<std::tm, Char>::format(t, ctx);
}
auto epoch = val.time_since_epoch();
auto subsecs = detail::duration_cast<Duration>(
epoch - detail::duration_cast<std::chrono::seconds>(epoch));
return formatter<std::tm, Char>::do_format(localtime(val), ctx, &subsecs);
auto subsecs =
detail::duration_cast<Duration>(time_since_epoch - seconds_since_epoch);
return formatter<std::tm, Char>::do_format(t, ctx, &subsecs);
}
};