chrono File Reference
Utilities » Time

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## Classes

struct | std::common_type< chrono::duration< _Rep, _Period > >
struct | std::common_type< chrono::duration< _Rep, _Period >, chrono::duration< _Rep, _Period > >
struct | std::common_type< chrono::duration< _Rep1, _Period1 >, chrono::duration< _Rep2, _Period2 > >
struct | std::common_type< chrono::time_point< _Clock, _Duration > >
struct | std::common_type< chrono::time_point< _Clock, _Duration >, chrono::time_point< _Clock, _Duration > >
struct | std::common_type< chrono::time_point< _Clock, _Duration1 >, chrono::time_point< _Clock, _Duration2 > >
struct | std::chrono::duration< _Rep, _Period >
struct | std::chrono::duration_values< _Rep >
struct | std::chrono::_V2::steady_clock
struct | std::chrono::_V2::system_clock
struct | std::chrono::time_point< _Clock, _Dur >
struct | std::chrono::treat_as_floating_point< _Rep >

## Namespaces

| std
| std::chrono
| std::filesystem
| std::literals
| std::literals::chrono_literals

## Macros

#define | __cpp_lib_chrono
#define | __cpp_lib_chrono_udls
#define | _GLIBCXX_CHRONO

## Typedefs

using | std::chrono::high_resolution_clock = system_clock
using | std::chrono::hours = duration< int64_t, ratio< 3600 > >
using | std::chrono::microseconds = duration< int64_t, micro >
using | std::chrono::milliseconds = duration< int64_t, milli >
using | std::chrono::minutes = duration< int64_t, ratio< 60 > >
using | std::chrono::nanoseconds = duration< int64_t, nano >
using | std::chrono::seconds = duration< int64_t >

## Functions

template<typename _Rep , typename _Period >
constexpr enable_if_t< numeric_limits< _Rep >::is_signed, duration< _Rep, _Period > > | std::chrono::abs (duration< _Rep, _Period > __d)
template<typename _ToDur , typename _Rep , typename _Period >
constexpr __enable_if_is_duration< _ToDur > | std::chrono::ceil (const duration< _Rep, _Period > &__d)
template<typename _ToDur , typename _Clock , typename _Dur >
constexpr enable_if_t< __is_duration< _ToDur >::value, time_point< _Clock, _ToDur > > | std::chrono::ceil (const time_point< _Clock, _Dur > &__tp)
template<typename _ToDur , typename _Rep , typename _Period >
constexpr __enable_if_is_duration< _ToDur > | std::chrono::duration_cast (const duration< _Rep, _Period > &__d)
template<typename _ToDur , typename _Rep , typename _Period >
constexpr __enable_if_is_duration< _ToDur > | std::chrono::floor (const duration< _Rep, _Period > &__d)
template<typename _ToDur , typename _Clock , typename _Dur >
constexpr enable_if_t< __is_duration< _ToDur >::value, time_point< _Clock, _ToDur > > | std::chrono::floor (const time_point< _Clock, _Dur > &__tp)
template<char... _Digits>
constexpr chrono::hours | std::literals::chrono_literals::operator""h ()
constexpr chrono::duration< long double, ratio< 3600, 1 > > | std::literals::chrono_literals::operator""h (long double __hours)
template<char... _Digits>
constexpr chrono::minutes | std::literals::chrono_literals::operator""min ()
constexpr chrono::duration< long double, ratio< 60, 1 > > | std::literals::chrono_literals::operator""min (long double __mins)
template<char... _Digits>
constexpr chrono::milliseconds | std::literals::chrono_literals::operator""ms ()
constexpr chrono::duration< long double, milli > | std::literals::chrono_literals::operator""ms (long double __msecs)
template<char... _Digits>
constexpr chrono::nanoseconds | std::literals::chrono_literals::operator""ns ()
constexpr chrono::duration< long double, nano > | std::literals::chrono_literals::operator""ns (long double __nsecs)
template<char... _Digits>
constexpr chrono::seconds | std::literals::chrono_literals::operator""s ()
constexpr chrono::duration< long double > | std::literals::chrono_literals::operator""s (long double __secs)
template<char... _Digits>
constexpr chrono::microseconds | std::literals::chrono_literals::operator""us ()
constexpr chrono::duration< long double, micro > | std::literals::chrono_literals::operator""us (long double __usecs)
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 > | std::chrono::round (const duration< _Rep, _Period > &__d)
template<typename _ToDur , typename _Clock , typename _Dur >
constexpr enable_if_t< __and_< __is_duration< _ToDur >, __not_< treat_as_floating_point< typename _ToDur::rep > > >::value, time_point< _Clock, _ToDur > > | std::chrono::round (const time_point< _Clock, _Dur > &__tp)
template<typename _ToDur , typename _Clock , typename _Dur >
constexpr enable_if< __is_duration< _ToDur >::value, time_point< _Clock, _ToDur > >::type | std::chrono::time_point_cast (const time_point< _Clock, _Dur > &__t)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr common_type< duration< _Rep1, _Period1 >, duration< _Rep2, _Period2 > >::type | std::chrono::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 > | std::chrono::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 | std::chrono::operator% (const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Rep2 , typename _Period >
constexpr duration< __common_rep_t< _Rep2, _Rep1 >, _Period > | std::chrono::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 > | std::chrono::operator/ (const duration< _Rep1, _Period > &__d, const _Rep2 &__s)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr common_type< _Rep1, _Rep2 >::type | std::chrono::operator/ (const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool | std::chrono::operator!= (const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool | std::chrono::operator< (const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool | std::chrono::operator<= (const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool | std::chrono::operator> (const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool | std::chrono::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 > | std::chrono::operator+ (const duration< _Rep1, _Period1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Rep2 , typename _Period2 >
constexpr time_point< _Clock, typename common_type< _Dur1, duration< _Rep2, _Period2 > >::type > | std::chrono::operator- (const time_point< _Clock, _Dur1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr common_type< _Dur1, _Dur2 >::type | std::chrono::operator- (const time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool | std::chrono::operator!= (const time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool | std::chrono::operator< (const time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool | std::chrono::operator<= (const time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool | std::chrono::operator> (const time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)
template<typename _Clock , typename _Dur1 , typename _Dur2 >
constexpr bool | std::chrono::operator>= (const time_point< _Clock, _Dur1 > &__lhs, const time_point< _Clock, _Dur2 > &__rhs)

## Variables

template<typename _Rep >
constexpr bool | std::chrono::treat_as_floating_point_v

## Detailed Description

This is a Standard C++ Library header.

Definition in file chrono.