std::chrono(3cxx) std::chrono(3cxx)
NAME
std::chrono - ISO C++ 2011 namespace for date and time utilities.
SYNOPSIS
Classes
class duration
chrono::duration represents a distance between two points in time
struct duration_values
duration_values
class gps_clock
class hh_mm_ss
struct steady_clock
Monotonic clock.
struct system_clock
System clock.
class tai_clock
class time_point
chrono::time_point represents a point in time as measured by a clock
struct treat_as_floating_point
class tzdb_list
class utc_clock
Typedefs
using days = duration< int64_t, ratio< 86400 > >
days
using file_clock = ::std::filesystem::__file_clock
template<typename _Duration > using file_time = time_point< file_clock,
_Duration >
using gps_seconds = gps_time< seconds >
template<typename _Duration > using gps_time = time_point< gps_clock,
_Duration >
using high_resolution_clock = system_clock
Highest-resolution clock.
using hours = duration< int64_t, ratio< 3600 > >
hours
using local_days = local_time< days >
using local_seconds = local_time< seconds >
template<typename _Duration > using local_time = time_point< local_t,
_Duration >
using microseconds = duration< int64_t, micro >
microseconds
using milliseconds = duration< int64_t, milli >
milliseconds
using minutes = duration< int64_t, ratio< 60 > >
minutes
using months = duration< int64_t, ratio< 2629746 > >
months
using nanoseconds = duration< int64_t, nano >
nanoseconds
using seconds = duration< int64_t >
seconds
using sys_days = sys_time< days >
using sys_seconds = sys_time< seconds >
template<typename _Duration > using sys_time = time_point< system_clock,
_Duration >
using tai_seconds = tai_time< seconds >
template<typename _Duration > using tai_time = time_point< tai_clock,
_Duration >
using utc_seconds = utc_time< seconds >
template<typename _Duration > using utc_time = time_point< utc_clock,
_Duration >
using weeks = duration< int64_t, ratio< 604800 > >
weeks
using years = duration< int64_t, ratio< 31556952 > >
years
using zoned_seconds = zoned_time< seconds >
Enumerations
enum class choose { earliest, latest }
Functions
template<typename _Duration > void __throw_bad_local_time (const
local_time< _Duration > &__tp, const local_info &__i)
template<typename _Rep , typename _Period > constexpr enable_if_t<
numeric_limits< _Rep >::is_signed, duration< _Rep, _Period > > abs
(duration< _Rep, _Period > __d)
template<typename _ToDur , typename _Rep , typename _Period > constexpr
__enable_if_is_duration< _ToDur > ceil (const duration< _Rep,
_Period > &__d)
template<typename _ToDur , typename _Clock , typename _Dur > constexpr
enable_if_t< __is_duration_v< _ToDur >, time_point< _Clock, _ToDur >
> ceil (const time_point< _Clock, _Dur > &__tp)
template<typename _DestClock , typename _SourceClock , typename
_Duration >
requires __detail::__clock_convs<_DestClock, _SourceClock,
_Duration> || __detail::__clock_convs_sys<_DestClock, _SourceClock,
_Duration> || __detail::__clock_convs_utc<_DestClock, _SourceClock,
_Duration> || __detail::__clock_convs_sys_utc<_DestClock,
_SourceClock, _Duration> ||
__detail::__clock_convs_utc_sys<_DestClock, _SourceClock,
_Duration>auto clock_cast (const time_point< _SourceClock, _Duration
> &__t)"
Convert a time point to a different clock.
const time_zone * current_zone ()
template<typename _ToDur , typename _Rep , typename _Period > constexpr
__enable_if_is_duration< _ToDur > duration_cast (const duration<
_Rep, _Period > &__d)
template<typename _ToDur , typename _Rep , typename _Period > constexpr
__enable_if_is_duration< _ToDur > floor (const duration< _Rep,
_Period > &__d)
template<typename _ToDur , typename _Clock , typename _Dur > constexpr
enable_if_t< __is_duration_v< _ToDur >, time_point< _Clock, _ToDur >
> floor (const time_point< _Clock, _Dur > &__tp)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt, day
&__d, basic_string< _CharT, _Traits, _Alloc > *__abbrev=nullptr,
minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Rep , typename
_Period , typename _Alloc = allocator<_CharT>> basic_istream<
_CharT, _Traits > & from_stream (basic_istream< _CharT, _Traits >
&__is, const _CharT *__fmt, duration< _Rep, _Period > &__d,
basic_string< _CharT, _Traits, _Alloc > *__abbrev=nullptr, minutes
*__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _Alloc = allocator<_CharT>> basic_istream< _CharT, _Traits
> & from_stream (basic_istream< _CharT, _Traits > &__is, const
_CharT *__fmt, file_time< _Duration > &__tp, basic_string< _CharT,
_Traits, _Alloc > *__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _Alloc = allocator<_CharT>> basic_istream< _CharT, _Traits
> & from_stream (basic_istream< _CharT, _Traits > &__is, const
_CharT *__fmt, gps_time< _Duration > &__tp, basic_string< _CharT,
_Traits, _Alloc > *__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _Alloc = allocator<_CharT>> basic_istream< _CharT, _Traits
> & from_stream (basic_istream< _CharT, _Traits > &__is, const
_CharT *__fmt, local_time< _Duration > &__tp, basic_string< _CharT,
_Traits, _Alloc > *__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt, month
&__m, basic_string< _CharT, _Traits, _Alloc > *__abbrev=nullptr,
minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt,
month_day &__md, basic_string< _CharT, _Traits, _Alloc >
*__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _Alloc = allocator<_CharT>> basic_istream< _CharT, _Traits
> & from_stream (basic_istream< _CharT, _Traits > &__is, const
_CharT *__fmt, sys_time< _Duration > &__tp, basic_string< _CharT,
_Traits, _Alloc > *__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _Alloc = allocator<_CharT>> basic_istream< _CharT, _Traits
> & from_stream (basic_istream< _CharT, _Traits > &__is, const
_CharT *__fmt, tai_time< _Duration > &__tp, basic_string< _CharT,
_Traits, _Alloc > *__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _Alloc = allocator<_CharT>> basic_istream< _CharT, _Traits
> & from_stream (basic_istream< _CharT, _Traits > &__is, const
_CharT *__fmt, utc_time< _Duration > &__tp, basic_string< _CharT,
_Traits, _Alloc > *__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt,
weekday &__wd, basic_string< _CharT, _Traits, _Alloc >
*__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt, year
&__y, basic_string< _CharT, _Traits, _Alloc > *__abbrev=nullptr,
minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt,
year_month &__ym, basic_string< _CharT, _Traits, _Alloc >
*__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _CharT , typename _Traits , typename _Alloc =
allocator<_CharT>> basic_istream< _CharT, _Traits > & from_stream
(basic_istream< _CharT, _Traits > &__is, const _CharT *__fmt,
year_month_day &__ymd, basic_string< _CharT, _Traits, _Alloc >
*__abbrev=nullptr, minutes *__offset=nullptr)
template<typename _Duration > leap_second_info get_leap_second_info
(const utc_time< _Duration > &__ut)
const tzdb & get_tzdb ()
tzdb_list & get_tzdb_list ()
constexpr bool is_am (const hours &__h) noexcept
constexpr bool is_pm (const hours &__h) noexcept
template<typename _Duration > __detail::__local_time_fmt< _Duration >
local_time_format (local_time< _Duration > __time, const string
*__abbrev=nullptr, const seconds *__offset_sec=nullptr)
const time_zone * locate_zone (string_view __tz_name)
constexpr hours make12 (const hours &__h) noexcept
constexpr hours make24 (const hours &__h, bool __is_pm) noexcept
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const day &__d)
template<typename _CharT , typename _Traits , typename _Duration >
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream<
_CharT, _Traits > &__os, const file_time< _Duration > &__t)
template<typename _CharT , typename _Traits , typename _Duration >
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream<
_CharT, _Traits > &__os, const gps_time< _Duration > &__t)
template<typename _CharT , typename _Traits , typename _Duration >
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream<
_CharT, _Traits > &__os, const hh_mm_ss< _Duration > &__hms)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const local_info &__li)
Writes a local_info object to an ostream in an unspecified format.
template<typename _CharT , typename _Traits , typename _Duration >
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream<
_CharT, _Traits > &__os, const local_time< _Duration > &__lt)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const month &__m)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const month_day &__md)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const month_day_last &__mdl)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const month_weekday &__mwd)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const month_weekday_last &__mwdl)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const sys_days &__dp)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const sys_info &__i)
Writes a sys_info object to an ostream in an unspecified format.
template<typename _CharT , typename _Traits , typename _Duration >
requires (!treat_as_floating_point_v<typename _Duration::rep>) &&
ratio_less_v<typename _Duration::period, days::period>basic_ostream<
_CharT, _Traits > & operator<< (basic_ostream< _CharT, _Traits >
&__os, const sys_time< _Duration > &__tp)"
template<typename _CharT , typename _Traits , typename _Duration >
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream<
_CharT, _Traits > &__os, const tai_time< _Duration > &__t)
template<typename _CharT , typename _Traits , typename _Duration >
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream<
_CharT, _Traits > &__os, const utc_time< _Duration > &__t)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const weekday &__wd)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const weekday_indexed &__wdi)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const weekday_last &__wdl)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const year &__y)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const year_month &__ym)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const year_month_day &__ymd)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const year_month_day_last &__ymdl)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const year_month_weekday &__ymwd)
template<typename _CharT , typename _Traits > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os,
const year_month_weekday_last &__ymwdl)
template<typename _CharT , typename _Traits , typename _Duration ,
typename _TimeZonePtr > basic_ostream< _CharT, _Traits > &
operator<< (basic_ostream< _CharT, _Traits > &__os, const
zoned_time< _Duration, _TimeZonePtr > &__t)
template<typename _CharT , typename _Traits , typename _Rep , typename
_Period > basic_ostream< _CharT, _Traits > & operator<<
(std::basic_ostream< _CharT, _Traits > &__os, const duration< _Rep,
_Period > &__d)
template<typename _Dur1 , typename _TZPtr1 , typename _Dur2 , typename
_TZPtr2 > bool operator== (const zoned_time< _Dur1, _TZPtr1 > &__x,
const zoned_time< _Dur2, _TZPtr2 > &__y)
template<typename _CharT , __detail::__parsable< _CharT > _Parsable>
auto parse (const _CharT *__fmt, _Parsable &__tp)
template<typename _CharT , typename _Traits , typename _Alloc , typename
_StrT = basic_string<_CharT, _Traits, _Alloc>,
__detail::__parsable< _CharT, _Traits, _StrT > _Parsable> auto parse
(const _CharT *__fmt, _Parsable &__tp, basic_string< _CharT,
_Traits, _Alloc > &__abbrev)
template<typename _CharT , typename _Traits , typename _Alloc , typename
_StrT = basic_string<_CharT, _Traits, _Alloc>,
__detail::__parsable< _CharT, _Traits, _StrT, minutes > _Parsable>
auto parse (const _CharT *__fmt, _Parsable &__tp, basic_string<
_CharT, _Traits, _Alloc > &__abbrev, minutes &__offset)
template<typename _CharT , typename _Traits = char_traits<_CharT>,
typename _StrT = basic_string<_CharT, _Traits>,
__detail::__parsable< _CharT, _Traits, _StrT, minutes > _Parsable>
auto parse (const _CharT *__fmt, _Parsable &__tp, minutes &__offset)
template<typename _CharT , typename _Traits , typename _Alloc ,
__detail::__parsable< _CharT, _Traits > _Parsable> auto parse (const
basic_string< _CharT, _Traits, _Alloc > &__fmt, _Parsable &__tp)
template<typename _CharT , typename _Traits , typename _Alloc , typename
_StrT = basic_string<_CharT, _Traits, _Alloc>,
__detail::__parsable< _CharT, _Traits, _StrT > _Parsable> auto parse
(const basic_string< _CharT, _Traits, _Alloc > &__fmt, _Parsable
&__tp, basic_string< _CharT, _Traits, _Alloc > &__abbrev)
template<typename _CharT , typename _Traits , typename _Alloc , typename
_StrT = basic_string<_CharT, _Traits, _Alloc>,
__detail::__parsable< _CharT, _Traits, _StrT, minutes > _Parsable>
auto parse (const basic_string< _CharT, _Traits, _Alloc > &__fmt,
_Parsable &__tp, basic_string< _CharT, _Traits, _Alloc > &__abbrev,
minutes &__offset)
template<typename _CharT , typename _Traits , typename _Alloc , typename
_StrT = basic_string<_CharT, _Traits>, __detail::__parsable<
_CharT, _Traits, _StrT, minutes > _Parsable> auto parse (const
basic_string< _CharT, _Traits, _Alloc > &__fmt, _Parsable &__tp,
minutes &__offset)
const tzdb & reload_tzdb ()
string remote_version ()
template<typename _ToDur , typename _Rep , typename _Period > constexpr
enable_if_t< __and_< __is_duration< _ToDur >, __not_<
treat_as_floating_point< typename _ToDur::rep > > >::value, _ToDur >
round (const duration< _Rep, _Period > &__d)
template<typename _ToDur , typename _Clock , typename _Dur > constexpr
enable_if_t< __is_duration_v< _ToDur > &&!treat_as_floating_point_v<
typename _ToDur::rep >, time_point< _Clock, _ToDur > > round (const
time_point< _Clock, _Dur > &__tp)
template<typename _ToDur , typename _Clock , typename _Dur > constexpr
__enable_if_t< __is_duration< _ToDur >::value, time_point< _Clock,
_ToDur > > time_point_cast (const time_point< _Clock, _Dur > &__t)
zoned_time () -> zoned_time< seconds >
template<typename _TimeZonePtrOrName > zoned_time (_TimeZonePtrOrName
&&) -> zoned_time< seconds, __time_zone_representation<
_TimeZonePtrOrName > >
template<typename _TimeZonePtrOrName , typename _Duration > zoned_time
(_TimeZonePtrOrName &&, local_time< _Duration >,
choose=choose::earliest) -> zoned_time< common_type_t< _Duration,
seconds >, __time_zone_representation< _TimeZonePtrOrName > >
template<typename _TimeZonePtrOrName , typename _Duration > zoned_time
(_TimeZonePtrOrName &&, sys_time< _Duration >) -> zoned_time<
common_type_t< _Duration, seconds >, __time_zone_representation<
_TimeZonePtrOrName > >
template<typename _Duration , typename _TimeZonePtrOrName , typename
_TimeZonePtr2 > zoned_time (_TimeZonePtrOrName &&, zoned_time<
_Duration, _TimeZonePtr2 >, choose=choose::earliest) -> zoned_time<
common_type_t< _Duration, seconds >, __time_zone_representation<
_TimeZonePtrOrName > >
template<typename _Duration > zoned_time (sys_time< _Duration >) ->
zoned_time< common_type_t< _Duration, seconds > >
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr common_type< duration< _Rep1,
_Period1 >, duration< _Rep2, _Period2 > >::type operator- (const
duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2,
_Period2 > &__rhs)
The difference between two durations.
template<typename _Rep1 , typename _Rep2 , typename _Period >
constexpr duration< __common_rep_t< _Rep2, _Rep1 >, _Period >
operator* (const _Rep1 &__s, const duration< _Rep2, _Period >
&__d)
template<typename _Rep1 , typename _Period , typename _Rep2 >
constexpr duration< __common_rep_t< _Rep1,
__disable_if_is_duration< _Rep2 > >, _Period > operator/ (const
duration< _Rep1, _Period > &__d, const _Rep2 &__s)
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr common_type< _Rep1, _Rep2 >::type
operator/ (const duration< _Rep1, _Period1 > &__lhs, const
duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Period , typename _Rep2 >
constexpr duration< __common_rep_t< _Rep1,
__disable_if_is_duration< _Rep2 > >, _Period > operator% (const
duration< _Rep1, _Period > &__d, const _Rep2 &__s)
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr common_type< duration< _Rep1,
_Period1 >, duration< _Rep2, _Period2 > >::type operator% (const
duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2,
_Period2 > &__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr bool operator< (const duration<
_Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 >
&__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 >
requires three_way_comparable<common_type_t<_Rep1,
_Rep2>>constexpr auto operator<=> (const duration< _Rep1,
_Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)"
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr bool operator<= (const duration<
_Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 >
&__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr bool operator> (const duration<
_Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 >
&__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 ,
typename _Period2 > constexpr bool operator>= (const duration<
_Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 >
&__rhs)
template<typename _Rep1 , typename _Period1 , typename _Clock ,
typename _Dur2 > constexpr time_point< _Clock, typename
common_type< duration< _Rep1, _Period1 >, _Dur2 >::type >
operator+ (const duration< _Rep1, _Period1 > &__lhs, const
time_point< _Clock, _Dur2 > &__rhs)
Adjust a time point forwards by the given duration.
template<typename _Clock , typename _Dur1 , typename _Rep2 ,
typename _Period2 > constexpr time_point< _Clock, typename
common_type< _Dur1, duration< _Rep2, _Period2 > >::type >
operator- (const time_point< _Clock, _Dur1 > &__lhs, const
duration< _Rep2, _Period2 > &__rhs)
Adjust a time point backwards by the given duration.
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr common_type< _Dur1, _Dur2 >::type operator- (const
time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock,
_Dur2 > &__rhs)
The difference between two time points (as a duration)
template<typename _Clock , typename _Dur1 ,
three_way_comparable_with< _Dur1 > _Dur2> constexpr auto
operator<=> (const time_point< _Clock, _Dur1 > &__lhs, const
time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool operator< (const time_point< _Clock, _Dur1 >
&__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool operator<= (const time_point< _Clock, _Dur1 >
&__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool operator> (const time_point< _Clock, _Dur1 >
&__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool operator>= (const time_point< _Clock, _Dur1 >
&__lhs, const time_point< _Clock, _Dur2 > &__rhs)
Variables
template<typename _Tp , typename _Clock > constexpr bool
__is_time_point_for_v
template<typename _Clock , typename _Duration > constexpr bool
__is_time_point_for_v< time_point< _Clock, _Duration >, _Clock >
constexpr month April
constexpr month August
constexpr month December
constexpr month February
constexpr weekday Friday
template<typename _Tp , typename = void> constexpr bool is_clock_v
template<> constexpr bool is_clock_v< file_clock >
template<> constexpr bool is_clock_v< gps_clock >
template<> constexpr bool is_clock_v< steady_clock >
template<> constexpr bool is_clock_v< system_clock >
template<> constexpr bool is_clock_v< tai_clock >
template<> constexpr bool is_clock_v< utc_clock >
constexpr month January
constexpr month July
constexpr month June
constexpr last_spec last
constexpr month March
constexpr month May
constexpr weekday Monday
constexpr month November
constexpr month October
constexpr weekday Saturday
constexpr month September
constexpr weekday Sunday
constexpr weekday Thursday
template<typename _Rep > constexpr bool treat_as_floating_point_v
template<> constexpr bool treat_as_floating_point_v< double >
template<> constexpr bool treat_as_floating_point_v< float >
template<> constexpr bool treat_as_floating_point_v< int >
template<> constexpr bool treat_as_floating_point_v< long >
template<> constexpr bool treat_as_floating_point_v< long double >
template<> constexpr bool treat_as_floating_point_v< long long >
constexpr weekday Tuesday
constexpr weekday Wednesday
Detailed Description
ISO C++ 2011 namespace for date and time utilities.
Author
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libstdc++ std::chrono(3cxx)
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