table of contents
std::chrono(3) | Library Functions Manual | std::chrono(3) |
NAME¶
std::chrono - ISO C++ 2011 namespace for date and time utilities.
SYNOPSIS¶
Classes¶
struct duration
chrono::duration represents a distance between two points in time
struct duration_values
duration_values struct steady_clock
Monotonic clock. struct system_clock
System clock. struct time_point
chrono::time_point represents a point in time as measured by a clock
struct treat_as_floating_point
treat_as_floating_point
Typedefs¶
using high_resolution_clock = system_clock
Highest-resolution clock. using hours = duration< int64_t,
ratio< 3600 > >
hours using microseconds = duration< int64_t, micro
>
microseconds using milliseconds = duration< int64_t,
milli >
milliseconds using minutes = duration< int64_t,
ratio< 60 > >
minutes using nanoseconds = duration< int64_t, nano
>
nanoseconds using seconds = duration< int64_t >
seconds
Functions¶
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< _ToDur >::value,
time_point< _Clock, _ToDur > > ceil (const
time_point< _Clock, _Dur > &__tp)
template<typename _ToDur , typename _Rep , typename _Period > constexpr
__enable_if_is_duration< _ToDur > duration_cast (const
duration< _Rep, _Period > &__d)
duration_cast 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< _ToDur >::value,
time_point< _Clock, _ToDur > > floor (const
time_point< _Clock, _Dur > &__tp)
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< __and_< __is_duration< _ToDur >, __not_<
treat_as_floating_point< typename _ToDur::rep > >
>::value, time_point< _Clock, _ToDur > > 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 time_point_cast
(const time_point< _Clock, _Dur > &__t)
time_point_cast
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 > 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 _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 , 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)
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 _Rep > constexpr bool
treat_as_floating_point_v
Detailed Description¶
ISO C++ 2011 namespace for date and time utilities.
Author¶
Generated automatically by Doxygen for libstdc++ from the source code.
Mon Dec 18 2023 | libstdc++ |