Provided by: libstdc++-9-doc_9.5.0-3ubuntu1_all 
NAME
std::chrono - ISO C++ 2011 entities sub-namespace for time and date.
SYNOPSIS
Classes
struct duration
duration
struct duration_values
duration_values
struct steady_clock
Monotonic clock.
struct system_clock
System clock.
struct time_point
time_point
struct treat_as_floating_point
treat_as_floating_point
Typedefs
template<typename _Rep1 , typename _Rep2 , typename _CRep = typename common_type<_Rep1,
_Rep2>::type> using __common_rep_t = typename enable_if< is_convertible< const _Rep2
&, _CRep >::value, _CRep >::type
template<typename _Tp > using __disable_if_is_duration = typename
enable_if<!__is_duration< _Tp >::value, _Tp >::type
template<typename _Tp > using __enable_if_is_duration = typename enable_if< __is_duration<
_Tp >::value, _Tp >::type
using high_resolution_clock = system_clock
Highest-resolution clock.
typedef duration< int64_t, ratio< 3600 > > hours
hours
typedef duration< int64_t, micro > microseconds
microseconds
typedef duration< int64_t, milli > milliseconds
milliseconds
typedef duration< int64_t, ratio< 60 > > minutes
minutes
typedef duration< int64_t, nano > nanoseconds
nanoseconds
typedef duration< int64_t > seconds
seconds
Functions
template<typename _ToDur , typename _Rep , typename _Period > constexpr
__enable_if_is_duration< _ToDur > duration_cast (const duration< _Rep, _Period > &__d)
duration_cast
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool operator!= (const duration< _Rep1, _Period1 > &__lhs, const duration<
_Rep2, _Period2 > &__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 _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 _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, _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 _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)
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)
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 _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)
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)
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 _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool operator< (const duration< _Rep1, _Period1 > &__lhs, const duration<
_Rep2, _Period2 > &__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 _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool operator<= (const duration< _Rep1, _Period1 > &__lhs, const duration<
_Rep2, _Period2 > &__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 _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool operator== (const duration< _Rep1, _Period1 > &__lhs, const duration<
_Rep2, _Period2 > &__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 _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool operator> (const duration< _Rep1, _Period1 > &__lhs, const duration<
_Rep2, _Period2 > &__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 _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 >
constexpr bool operator>= (const duration< _Rep1, _Period1 > &__lhs, const duration<
_Rep2, _Period2 > &__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 _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
Detailed Description
ISO C++ 2011 entities sub-namespace for time and date.
Typedef Documentation
template<typename _Rep1 , typename _Rep2 , typename _CRep = typename common_type<_Rep1,
_Rep2>::type> using std::chrono::__common_rep_t = typedef typename
enable_if<is_convertible<const _Rep2&, _CRep>::value, _CRep>::type
Definition at line 478 of file chrono.
template<typename _Tp > using std::chrono::__disable_if_is_duration = typedef typename
enable_if<!__is_duration<_Tp>::value, _Tp>::type
Definition at line 185 of file chrono.
template<typename _Tp > using std::chrono::__enable_if_is_duration = typedef typename
enable_if<__is_duration<_Tp>::value, _Tp>::type
Definition at line 181 of file chrono.
using std::chrono::_V2::high_resolution_clock = typedef system_clock
Highest-resolution clock. This is the clock 'with the shortest tick period.' Alias to
std::system_clock until higher-than-nanosecond definitions become feasible.
Definition at line 888 of file chrono.
typedef duration< int64_t , ratio<3600> > std::chrono::hours
hours
Definition at line 620 of file chrono.
typedef duration< int64_t , micro> std::chrono::microseconds
microseconds
Definition at line 608 of file chrono.
typedef duration< int64_t , milli> std::chrono::milliseconds
milliseconds
Definition at line 611 of file chrono.
typedef duration< int64_t , ratio< 60> > std::chrono::minutes
minutes
Definition at line 617 of file chrono.
typedef duration< int64_t , nano> std::chrono::nanoseconds
nanoseconds
Definition at line 605 of file chrono.
typedef duration< int64_t > std::chrono::seconds
seconds
Definition at line 614 of file chrono.
Function Documentation
template<typename _ToDur , typename _Rep , typename _Period > constexpr
__enable_if_is_duration< _ToDur > std::chrono::duration_cast (const duration< _Rep,
_Period > & __d) [constexpr]
duration_cast
Definition at line 191 of file chrono.
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 > constexpr
bool std::chrono::operator!= (const duration< _Rep1, _Period1 > & __lhs, const duration<
_Rep2, _Period2 > & __rhs) [constexpr]
Definition at line 569 of file chrono.
template<typename _Clock , typename _Dur1 , typename _Dur2 > constexpr bool
std::chrono::operator!= (const time_point< _Clock, _Dur1 > & __lhs, const time_point<
_Clock, _Dur2 > & __rhs) [constexpr]
Definition at line 774 of file chrono.
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)
[constexpr]
Definition at line 521 of file chrono.
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) [constexpr]
Definition at line 532 of file chrono.
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) [constexpr]
Definition at line 492 of file chrono.
template<typename _Rep1 , typename _Period , typename _Rep2 > constexpr duration<
__common_rep_t< _Rep1, _Rep2 >, _Period > std::chrono::operator* (const duration< _Rep1,
_Period > & __d, const _Rep2 & __s) [constexpr]
Definition at line 483 of file chrono.
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) [constexpr]
Definition at line 450 of file chrono.
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) [constexpr]
Definition at line 738 of file chrono.
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) [constexpr]
Definition at line 725 of file chrono.
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) [constexpr]
Definition at line 463 of file chrono.
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) [constexpr]
Definition at line 751 of file chrono.
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) [constexpr]
Definition at line 762 of file chrono.
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)
[constexpr]
Definition at line 498 of file chrono.
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) [constexpr]
Definition at line 508 of file chrono.
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 > constexpr
bool std::chrono::operator< (const duration< _Rep1, _Period1 > & __lhs, const duration<
_Rep2, _Period2 > & __rhs) [constexpr]
Definition at line 556 of file chrono.
template<typename _Clock , typename _Dur1 , typename _Dur2 > constexpr bool
std::chrono::operator< (const time_point< _Clock, _Dur1 > & __lhs, const time_point<
_Clock, _Dur2 > & __rhs) [constexpr]
Definition at line 779 of file chrono.
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 > constexpr
bool std::chrono::operator<= (const duration< _Rep1, _Period1 > & __lhs, const duration<
_Rep2, _Period2 > & __rhs) [constexpr]
Definition at line 575 of file chrono.
template<typename _Clock , typename _Dur1 , typename _Dur2 > constexpr bool
std::chrono::operator<= (const time_point< _Clock, _Dur1 > & __lhs, const time_point<
_Clock, _Dur2 > & __rhs) [constexpr]
Definition at line 785 of file chrono.
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 > constexpr
bool std::chrono::operator== (const duration< _Rep1, _Period1 > & __lhs, const duration<
_Rep2, _Period2 > & __rhs) [constexpr]
Definition at line 545 of file chrono.
template<typename _Clock , typename _Dur1 , typename _Dur2 > constexpr bool
std::chrono::operator== (const time_point< _Clock, _Dur1 > & __lhs, const time_point<
_Clock, _Dur2 > & __rhs) [constexpr]
Definition at line 768 of file chrono.
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 > constexpr
bool std::chrono::operator> (const duration< _Rep1, _Period1 > & __lhs, const duration<
_Rep2, _Period2 > & __rhs) [constexpr]
Definition at line 583 of file chrono.
template<typename _Clock , typename _Dur1 , typename _Dur2 > constexpr bool
std::chrono::operator> (const time_point< _Clock, _Dur1 > & __lhs, const time_point<
_Clock, _Dur2 > & __rhs) [constexpr]
Definition at line 792 of file chrono.
template<typename _Rep1 , typename _Period1 , typename _Rep2 , typename _Period2 > constexpr
bool std::chrono::operator>= (const duration< _Rep1, _Period1 > & __lhs, const duration<
_Rep2, _Period2 > & __rhs) [constexpr]
Definition at line 590 of file chrono.
template<typename _Clock , typename _Dur1 , typename _Dur2 > constexpr bool
std::chrono::operator>= (const time_point< _Clock, _Dur1 > & __lhs, const time_point<
_Clock, _Dur2 > & __rhs) [constexpr]
Definition at line 798 of file chrono.
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) [constexpr]
time_point_cast
Definition at line 684 of file chrono.
Author
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