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darling-libcxx/include/chrono
Marshall Clow a3866e4c89 Last bit of P0006; mark it as complete 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@254290 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-30 05:39:30 +00:00

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// -*- C++ -*-
//===---------------------------- chrono ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CHRONO
#define _LIBCPP_CHRONO
/*
chrono synopsis
namespace std
{
namespace chrono
{
template <class ToDuration, class Rep, class Period>
constexpr
ToDuration
duration_cast(const duration<Rep, Period>& fd);
template <class Rep> struct treat_as_floating_point : is_floating_point<Rep> {};
template <class Rep> constexpr bool treat_as_floating_point_v
= treat_as_floating_point<Rep>::value; // C++17
template <class Rep>
struct duration_values
{
public:
static constexpr Rep zero();
static constexpr Rep max();
static constexpr Rep min();
};
// duration
template <class Rep, class Period = ratio<1>>
class duration
{
static_assert(!__is_duration<Rep>::value, "A duration representation can not be a duration");
static_assert(__is_ratio<Period>::value, "Second template parameter of duration must be a std::ratio");
static_assert(Period::num > 0, "duration period must be positive");
public:
typedef Rep rep;
typedef Period period;
constexpr duration() = default;
template <class Rep2>
constexpr explicit duration(const Rep2& r,
typename enable_if
<
is_convertible<Rep2, rep>::value &&
(treat_as_floating_point<rep>::value ||
!treat_as_floating_point<rep>::value && !treat_as_floating_point<Rep2>::value)
>::type* = 0);
// conversions
template <class Rep2, class Period2>
constexpr duration(const duration<Rep2, Period2>& d,
typename enable_if
<
treat_as_floating_point<rep>::value ||
ratio_divide<Period2, period>::type::den == 1
>::type* = 0);
// observer
constexpr rep count() const;
// arithmetic
constexpr duration operator+() const;
constexpr duration operator-() const;
duration& operator++();
duration operator++(int);
duration& operator--();
duration operator--(int);
duration& operator+=(const duration& d);
duration& operator-=(const duration& d);
duration& operator*=(const rep& rhs);
duration& operator/=(const rep& rhs);
// special values
static constexpr duration zero();
static constexpr duration min();
static constexpr duration max();
};
typedef duration<long long, nano> nanoseconds;
typedef duration<long long, micro> microseconds;
typedef duration<long long, milli> milliseconds;
typedef duration<long long > seconds;
typedef duration< long, ratio< 60> > minutes;
typedef duration< long, ratio<3600> > hours;
template <class Clock, class Duration = typename Clock::duration>
class time_point
{
public:
typedef Clock clock;
typedef Duration duration;
typedef typename duration::rep rep;
typedef typename duration::period period;
private:
duration d_; // exposition only
public:
time_point(); // has value "epoch" // constexpr in C++14
explicit time_point(const duration& d); // same as time_point() + d // constexpr in C++14
// conversions
template <class Duration2>
time_point(const time_point<clock, Duration2>& t); // constexpr in C++14
// observer
duration time_since_epoch() const; // constexpr in C++14
// arithmetic
time_point& operator+=(const duration& d);
time_point& operator-=(const duration& d);
// special values
static constexpr time_point min();
static constexpr time_point max();
};
} // chrono
// common_type traits
template <class Rep1, class Period1, class Rep2, class Period2>
struct common_type<chrono::duration<Rep1, Period1>, chrono::duration<Rep2, Period2>>;
template <class Clock, class Duration1, class Duration2>
struct common_type<chrono::time_point<Clock, Duration1>, chrono::time_point<Clock, Duration2>>;
namespace chrono {
// duration arithmetic
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type
operator+(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type
operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period, class Rep2>
constexpr
duration<typename common_type<Rep1, Rep2>::type, Period>
operator*(const duration<Rep1, Period>& d, const Rep2& s);
template <class Rep1, class Period, class Rep2>
constexpr
duration<typename common_type<Rep1, Rep2>::type, Period>
operator*(const Rep1& s, const duration<Rep2, Period>& d);
template <class Rep1, class Period, class Rep2>
constexpr
duration<typename common_type<Rep1, Rep2>::type, Period>
operator/(const duration<Rep1, Period>& d, const Rep2& s);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
typename common_type<Rep1, Rep2>::type
operator/(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
// duration comparisons
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
bool operator==(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
bool operator!=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
bool operator< (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
bool operator<=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
bool operator> (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
bool operator>=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
// duration_cast
template <class ToDuration, class Rep, class Period>
ToDuration duration_cast(const duration<Rep, Period>& d);
template <class ToDuration, class Rep, class Period>
constexpr ToDuration floor(const duration<Rep, Period>& d); // C++17
template <class ToDuration, class Rep, class Period>
constexpr ToDuration ceil(const duration<Rep, Period>& d); // C++17
template <class ToDuration, class Rep, class Period>
constexpr ToDuration round(const duration<Rep, Period>& d); // C++17
// time_point arithmetic (all constexpr in C++14)
template <class Clock, class Duration1, class Rep2, class Period2>
time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type>
operator+(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Rep1, class Period1, class Clock, class Duration2>
time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type>
operator+(const duration<Rep1, Period1>& lhs, const time_point<Clock, Duration2>& rhs);
template <class Clock, class Duration1, class Rep2, class Period2>
time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type>
operator-(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs);
template <class Clock, class Duration1, class Duration2>
typename common_type<Duration1, Duration2>::type
operator-(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
// time_point comparisons (all constexpr in C++14)
template <class Clock, class Duration1, class Duration2>
bool operator==(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
template <class Clock, class Duration1, class Duration2>
bool operator!=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
template <class Clock, class Duration1, class Duration2>
bool operator< (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
template <class Clock, class Duration1, class Duration2>
bool operator<=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
template <class Clock, class Duration1, class Duration2>
bool operator> (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
template <class Clock, class Duration1, class Duration2>
bool operator>=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
// time_point_cast (constexpr in C++14)
template <class ToDuration, class Clock, class Duration>
time_point<Clock, ToDuration> time_point_cast(const time_point<Clock, Duration>& t);
template <class ToDuration, class Clock, class Duration>
constexpr time_point<Clock, ToDuration>
floor(const time_point<Clock, Duration>& tp); // C++17
template <class ToDuration, class Clock, class Duration>
constexpr time_point<Clock, ToDuration>
ceil(const time_point<Clock, Duration>& tp); // C++17
template <class ToDuration, class Clock, class Duration>
constexpr time_point<Clock, ToDuration>
round(const time_point<Clock, Duration>& tp); // C++17
template <class Rep, class Period>
constexpr duration<Rep, Period> abs(duration<Rep, Period> d); // C++17
// Clocks
class system_clock
{
public:
typedef microseconds duration;
typedef duration::rep rep;
typedef duration::period period;
typedef chrono::time_point<system_clock> time_point;
static const bool is_steady = false; // constexpr in C++14
static time_point now() noexcept;
static time_t to_time_t (const time_point& __t) noexcept;
static time_point from_time_t(time_t __t) noexcept;
};
class steady_clock
{
public:
typedef nanoseconds duration;
typedef duration::rep rep;
typedef duration::period period;
typedef chrono::time_point<steady_clock, duration> time_point;
static const bool is_steady = true; // constexpr in C++14
static time_point now() noexcept;
};
typedef steady_clock high_resolution_clock;
} // chrono
constexpr chrono::hours operator "" h(unsigned long long); // C++14
constexpr chrono::duration<unspecified , ratio<3600,1>> operator "" h(long double); // C++14
constexpr chrono::minutes operator "" min(unsigned long long); // C++14
constexpr chrono::duration<unspecified , ratio<60,1>> operator "" min(long double); // C++14
constexpr chrono::seconds operator "" s(unsigned long long); // C++14
constexpr chrono::duration<unspecified > operator "" s(long double); // C++14
constexpr chrono::milliseconds operator "" ms(unsigned long long); // C++14
constexpr chrono::duration<unspecified , milli> operator "" ms(long double); // C++14
constexpr chrono::microseconds operator "" us(unsigned long long); // C++14
constexpr chrono::duration<unspecified , micro> operator "" us(long double); // C++14
constexpr chrono::nanoseconds operator "" ns(unsigned long long); // C++14
constexpr chrono::duration<unspecified , nano> operator "" ns(long double); // C++14
} // std
*/
#include <__config>
#include <ctime>
#include <type_traits>
#include <ratio>
#include <limits>
#include <__undef_min_max>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
namespace chrono
{
template <class _Rep, class _Period = ratio<1> > class _LIBCPP_TYPE_VIS_ONLY duration;
template <class _Tp>
struct __is_duration : false_type {};
template <class _Rep, class _Period>
struct __is_duration<duration<_Rep, _Period> > : true_type {};
template <class _Rep, class _Period>
struct __is_duration<const duration<_Rep, _Period> > : true_type {};
template <class _Rep, class _Period>
struct __is_duration<volatile duration<_Rep, _Period> > : true_type {};
template <class _Rep, class _Period>
struct __is_duration<const volatile duration<_Rep, _Period> > : true_type {};
} // chrono
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
struct _LIBCPP_TYPE_VIS_ONLY common_type<chrono::duration<_Rep1, _Period1>,
chrono::duration<_Rep2, _Period2> >
{
typedef chrono::duration<typename common_type<_Rep1, _Rep2>::type,
typename __ratio_gcd<_Period1, _Period2>::type> type;
};
namespace chrono {
// duration_cast
template <class _FromDuration, class _ToDuration,
class _Period = typename ratio_divide<typename _FromDuration::period, typename _ToDuration::period>::type,
bool = _Period::num == 1,
bool = _Period::den == 1>
struct __duration_cast;
template <class _FromDuration, class _ToDuration, class _Period>
struct __duration_cast<_FromDuration, _ToDuration, _Period, true, true>
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
_ToDuration operator()(const _FromDuration& __fd) const
{
return _ToDuration(static_cast<typename _ToDuration::rep>(__fd.count()));
}
};
template <class _FromDuration, class _ToDuration, class _Period>
struct __duration_cast<_FromDuration, _ToDuration, _Period, true, false>
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
_ToDuration operator()(const _FromDuration& __fd) const
{
typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
return _ToDuration(static_cast<typename _ToDuration::rep>(
static_cast<_Ct>(__fd.count()) / static_cast<_Ct>(_Period::den)));
}
};
template <class _FromDuration, class _ToDuration, class _Period>
struct __duration_cast<_FromDuration, _ToDuration, _Period, false, true>
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
_ToDuration operator()(const _FromDuration& __fd) const
{
typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
return _ToDuration(static_cast<typename _ToDuration::rep>(
static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num)));
}
};
template <class _FromDuration, class _ToDuration, class _Period>
struct __duration_cast<_FromDuration, _ToDuration, _Period, false, false>
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
_ToDuration operator()(const _FromDuration& __fd) const
{
typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
return _ToDuration(static_cast<typename _ToDuration::rep>(
static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num)
/ static_cast<_Ct>(_Period::den)));
}
};
template <class _ToDuration, class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
_ToDuration
>::type
duration_cast(const duration<_Rep, _Period>& __fd)
{
return __duration_cast<duration<_Rep, _Period>, _ToDuration>()(__fd);
}
template <class _Rep>
struct _LIBCPP_TYPE_VIS_ONLY treat_as_floating_point : is_floating_point<_Rep> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Rep> _LIBCPP_CONSTEXPR bool treat_as_floating_point_v
= treat_as_floating_point<_Rep>::value;
#endif
template <class _Rep>
struct _LIBCPP_TYPE_VIS_ONLY duration_values
{
public:
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep zero() {return _Rep(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep max() {return numeric_limits<_Rep>::max();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep min() {return numeric_limits<_Rep>::lowest();}
};
#if _LIBCPP_STD_VER > 14
template <class _ToDuration, class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
_ToDuration
>::type
floor(const duration<_Rep, _Period>& __d)
{
_ToDuration __t = duration_cast<_ToDuration>(__d);
if (__t > __d)
__t = __t - _ToDuration{1};
return __t;
}
template <class _ToDuration, class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
_ToDuration
>::type
ceil(const duration<_Rep, _Period>& __d)
{
_ToDuration __t = duration_cast<_ToDuration>(__d);
if (__t < __d)
__t = __t + _ToDuration{1};
return __t;
}
template <class _ToDuration, class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
_ToDuration
>::type
round(const duration<_Rep, _Period>& __d)
{
_ToDuration __lower = floor<_ToDuration>(__d);
_ToDuration __upper = __lower + _ToDuration{1};
auto __lowerDiff = __d - __lower;
auto __upperDiff = __upper - __d;
if (__lowerDiff < __upperDiff)
return __lower;
if (__lowerDiff > __upperDiff)
return __upper;
return __lower.count() & 1 ? __upper : __lower;
}
#endif
// duration
template <class _Rep, class _Period>
class _LIBCPP_TYPE_VIS_ONLY duration
{
static_assert(!__is_duration<_Rep>::value, "A duration representation can not be a duration");
static_assert(__is_ratio<_Period>::value, "Second template parameter of duration must be a std::ratio");
static_assert(_Period::num > 0, "duration period must be positive");
template <class _R1, class _R2>
struct __no_overflow
{
private:
static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value;
static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value;
static const intmax_t __n1 = _R1::num / __gcd_n1_n2;
static const intmax_t __d1 = _R1::den / __gcd_d1_d2;
static const intmax_t __n2 = _R2::num / __gcd_n1_n2;
static const intmax_t __d2 = _R2::den / __gcd_d1_d2;
static const intmax_t max = -((intmax_t(1) << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1);
template <intmax_t _Xp, intmax_t _Yp, bool __overflow>
struct __mul // __overflow == false
{
static const intmax_t value = _Xp * _Yp;
};
template <intmax_t _Xp, intmax_t _Yp>
struct __mul<_Xp, _Yp, true>
{
static const intmax_t value = 1;
};
public:
static const bool value = (__n1 <= max / __d2) && (__n2 <= max / __d1);
typedef ratio<__mul<__n1, __d2, !value>::value,
__mul<__n2, __d1, !value>::value> type;
};
public:
typedef _Rep rep;
typedef _Period period;
private:
rep __rep_;
public:
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
#ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
duration() = default;
#else
duration() {}
#endif
template <class _Rep2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
explicit duration(const _Rep2& __r,
typename enable_if
<
is_convertible<_Rep2, rep>::value &&
(treat_as_floating_point<rep>::value ||
!treat_as_floating_point<_Rep2>::value)
>::type* = 0)
: __rep_(__r) {}
// conversions
template <class _Rep2, class _Period2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
duration(const duration<_Rep2, _Period2>& __d,
typename enable_if
<
__no_overflow<_Period2, period>::value && (
treat_as_floating_point<rep>::value ||
(__no_overflow<_Period2, period>::type::den == 1 &&
!treat_as_floating_point<_Rep2>::value))
>::type* = 0)
: __rep_(_VSTD::chrono::duration_cast<duration>(__d).count()) {}
// observer
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR rep count() const {return __rep_;}
// arithmetic
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR duration operator+() const {return *this;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR duration operator-() const {return duration(-__rep_);}
_LIBCPP_INLINE_VISIBILITY duration& operator++() {++__rep_; return *this;}
_LIBCPP_INLINE_VISIBILITY duration operator++(int) {return duration(__rep_++);}
_LIBCPP_INLINE_VISIBILITY duration& operator--() {--__rep_; return *this;}
_LIBCPP_INLINE_VISIBILITY duration operator--(int) {return duration(__rep_--);}
_LIBCPP_INLINE_VISIBILITY duration& operator+=(const duration& __d) {__rep_ += __d.count(); return *this;}
_LIBCPP_INLINE_VISIBILITY duration& operator-=(const duration& __d) {__rep_ -= __d.count(); return *this;}
_LIBCPP_INLINE_VISIBILITY duration& operator*=(const rep& rhs) {__rep_ *= rhs; return *this;}
_LIBCPP_INLINE_VISIBILITY duration& operator/=(const rep& rhs) {__rep_ /= rhs; return *this;}
_LIBCPP_INLINE_VISIBILITY duration& operator%=(const rep& rhs) {__rep_ %= rhs; return *this;}
_LIBCPP_INLINE_VISIBILITY duration& operator%=(const duration& rhs) {__rep_ %= rhs.count(); return *this;}
// special values
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration zero() {return duration(duration_values<rep>::zero());}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration min() {return duration(duration_values<rep>::min());}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration max() {return duration(duration_values<rep>::max());}
};
typedef duration<long long, nano> nanoseconds;
typedef duration<long long, micro> microseconds;
typedef duration<long long, milli> milliseconds;
typedef duration<long long > seconds;
typedef duration< long, ratio< 60> > minutes;
typedef duration< long, ratio<3600> > hours;
// Duration ==
template <class _LhsDuration, class _RhsDuration>
struct __duration_eq
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const
{
typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct;
return _Ct(__lhs).count() == _Ct(__rhs).count();
}
};
template <class _LhsDuration>
struct __duration_eq<_LhsDuration, _LhsDuration>
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const
{return __lhs.count() == __rhs.count();}
};
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
bool
operator==(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return __duration_eq<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs);
}
// Duration !=
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
bool
operator!=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return !(__lhs == __rhs);
}
// Duration <
template <class _LhsDuration, class _RhsDuration>
struct __duration_lt
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const
{
typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct;
return _Ct(__lhs).count() < _Ct(__rhs).count();
}
};
template <class _LhsDuration>
struct __duration_lt<_LhsDuration, _LhsDuration>
{
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const
{return __lhs.count() < __rhs.count();}
};
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
bool
operator< (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return __duration_lt<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs);
}
// Duration >
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
bool
operator> (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return __rhs < __lhs;
}
// Duration <=
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
bool
operator<=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return !(__rhs < __lhs);
}
// Duration >=
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
bool
operator>=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return !(__lhs < __rhs);
}
// Duration +
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
operator+(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
return _Cd(_Cd(__lhs).count() + _Cd(__rhs).count());
}
// Duration -
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
operator-(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
return _Cd(_Cd(__lhs).count() - _Cd(__rhs).count());
}
// Duration *
template <class _Rep1, class _Period, class _Rep2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename enable_if
<
is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value,
duration<typename common_type<_Rep1, _Rep2>::type, _Period>
>::type
operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s)
{
typedef typename common_type<_Rep1, _Rep2>::type _Cr;
typedef duration<_Cr, _Period> _Cd;
return _Cd(_Cd(__d).count() * static_cast<_Cr>(__s));
}
template <class _Rep1, class _Period, class _Rep2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename enable_if
<
is_convertible<_Rep1, typename common_type<_Rep1, _Rep2>::type>::value,
duration<typename common_type<_Rep1, _Rep2>::type, _Period>
>::type
operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d)
{
return __d * __s;
}
// Duration /
template <class _Duration, class _Rep, bool = __is_duration<_Rep>::value>
struct __duration_divide_result
{
};
template <class _Duration, class _Rep2,
bool = is_convertible<_Rep2,
typename common_type<typename _Duration::rep, _Rep2>::type>::value>
struct __duration_divide_imp
{
};
template <class _Rep1, class _Period, class _Rep2>
struct __duration_divide_imp<duration<_Rep1, _Period>, _Rep2, true>
{
typedef duration<typename common_type<_Rep1, _Rep2>::type, _Period> type;
};
template <class _Rep1, class _Period, class _Rep2>
struct __duration_divide_result<duration<_Rep1, _Period>, _Rep2, false>
: __duration_divide_imp<duration<_Rep1, _Period>, _Rep2>
{
};
template <class _Rep1, class _Period, class _Rep2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename __duration_divide_result<duration<_Rep1, _Period>, _Rep2>::type
operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s)
{
typedef typename common_type<_Rep1, _Rep2>::type _Cr;
typedef duration<_Cr, _Period> _Cd;
return _Cd(_Cd(__d).count() / static_cast<_Cr>(__s));
}
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename common_type<_Rep1, _Rep2>::type
operator/(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Ct;
return _Ct(__lhs).count() / _Ct(__rhs).count();
}
// Duration %
template <class _Rep1, class _Period, class _Rep2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename __duration_divide_result<duration<_Rep1, _Period>, _Rep2>::type
operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s)
{
typedef typename common_type<_Rep1, _Rep2>::type _Cr;
typedef duration<_Cr, _Period> _Cd;
return _Cd(_Cd(__d).count() % static_cast<_Cr>(__s));
}
template <class _Rep1, class _Period1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
operator%(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
typedef typename common_type<_Rep1, _Rep2>::type _Cr;
typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
return _Cd(static_cast<_Cr>(_Cd(__lhs).count()) % static_cast<_Cr>(_Cd(__rhs).count()));
}
//////////////////////////////////////////////////////////
///////////////////// time_point /////////////////////////
//////////////////////////////////////////////////////////
template <class _Clock, class _Duration = typename _Clock::duration>
class _LIBCPP_TYPE_VIS_ONLY time_point
{
static_assert(__is_duration<_Duration>::value,
"Second template parameter of time_point must be a std::chrono::duration");
public:
typedef _Clock clock;
typedef _Duration duration;
typedef typename duration::rep rep;
typedef typename duration::period period;
private:
duration __d_;
public:
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 time_point() : __d_(duration::zero()) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 explicit time_point(const duration& __d) : __d_(__d) {}
// conversions
template <class _Duration2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
time_point(const time_point<clock, _Duration2>& t,
typename enable_if
<
is_convertible<_Duration2, duration>::value
>::type* = 0)
: __d_(t.time_since_epoch()) {}
// observer
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 duration time_since_epoch() const {return __d_;}
// arithmetic
_LIBCPP_INLINE_VISIBILITY time_point& operator+=(const duration& __d) {__d_ += __d; return *this;}
_LIBCPP_INLINE_VISIBILITY time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;}
// special values
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point min() {return time_point(duration::min());}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point max() {return time_point(duration::max());}
};
} // chrono
template <class _Clock, class _Duration1, class _Duration2>
struct _LIBCPP_TYPE_VIS_ONLY common_type<chrono::time_point<_Clock, _Duration1>,
chrono::time_point<_Clock, _Duration2> >
{
typedef chrono::time_point<_Clock, typename common_type<_Duration1, _Duration2>::type> type;
};
namespace chrono {
template <class _ToDuration, class _Clock, class _Duration>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
time_point<_Clock, _ToDuration>
time_point_cast(const time_point<_Clock, _Duration>& __t)
{
return time_point<_Clock, _ToDuration>(_VSTD::chrono::duration_cast<_ToDuration>(__t.time_since_epoch()));
}
#if _LIBCPP_STD_VER > 14
template <class _ToDuration, class _Clock, class _Duration>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
time_point<_Clock, _ToDuration>
>::type
floor(const time_point<_Clock, _Duration>& __t)
{
return time_point<_Clock, _ToDuration>{floor<_ToDuration>(__t.time_since_epoch())};
}
template <class _ToDuration, class _Clock, class _Duration>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
time_point<_Clock, _ToDuration>
>::type
ceil(const time_point<_Clock, _Duration>& __t)
{
return time_point<_Clock, _ToDuration>{ceil<_ToDuration>(__t.time_since_epoch())};
}
template <class _ToDuration, class _Clock, class _Duration>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
__is_duration<_ToDuration>::value,
time_point<_Clock, _ToDuration>
>::type
round(const time_point<_Clock, _Duration>& __t)
{
return time_point<_Clock, _ToDuration>{round<_ToDuration>(__t.time_since_epoch())};
}
template <class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
typename enable_if
<
numeric_limits<_Rep>::is_signed,
duration<_Rep, _Period>
>::type
abs(duration<_Rep, _Period> __d)
{
return __d >= __d.zero() ? __d : -__d;
}
#endif
// time_point ==
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator==(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return __lhs.time_since_epoch() == __rhs.time_since_epoch();
}
// time_point !=
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator!=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return !(__lhs == __rhs);
}
// time_point <
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator<(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return __lhs.time_since_epoch() < __rhs.time_since_epoch();
}
// time_point >
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator>(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return __rhs < __lhs;
}
// time_point <=
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator<=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return !(__rhs < __lhs);
}
// time_point >=
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator>=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return !(__lhs < __rhs);
}
// time_point operator+(time_point x, duration y);
template <class _Clock, class _Duration1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type>
operator+(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Tr;
return _Tr (__lhs.time_since_epoch() + __rhs);
}
// time_point operator+(duration x, time_point y);
template <class _Rep1, class _Period1, class _Clock, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
time_point<_Clock, typename common_type<duration<_Rep1, _Period1>, _Duration2>::type>
operator+(const duration<_Rep1, _Period1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return __rhs + __lhs;
}
// time_point operator-(time_point x, duration y);
template <class _Clock, class _Duration1, class _Rep2, class _Period2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type>
operator-(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs)
{
return __lhs + (-__rhs);
}
// duration operator-(time_point x, time_point y);
template <class _Clock, class _Duration1, class _Duration2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename common_type<_Duration1, _Duration2>::type
operator-(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs)
{
return __lhs.time_since_epoch() - __rhs.time_since_epoch();
}
//////////////////////////////////////////////////////////
/////////////////////// clocks ///////////////////////////
//////////////////////////////////////////////////////////
class _LIBCPP_TYPE_VIS system_clock
{
public:
typedef microseconds duration;
typedef duration::rep rep;
typedef duration::period period;
typedef chrono::time_point<system_clock> time_point;
static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false;
static time_point now() _NOEXCEPT;
static time_t to_time_t (const time_point& __t) _NOEXCEPT;
static time_point from_time_t(time_t __t) _NOEXCEPT;
};
#ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK
class _LIBCPP_TYPE_VIS steady_clock
{
public:
typedef nanoseconds duration;
typedef duration::rep rep;
typedef duration::period period;
typedef chrono::time_point<steady_clock, duration> time_point;
static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = true;
static time_point now() _NOEXCEPT;
};
typedef steady_clock high_resolution_clock;
#else
typedef system_clock high_resolution_clock;
#endif
} // chrono
#if _LIBCPP_STD_VER > 11
// Suffixes for duration literals [time.duration.literals]
inline namespace literals
{
inline namespace chrono_literals
{
constexpr chrono::hours operator"" h(unsigned long long __h)
{
return chrono::hours(static_cast<chrono::hours::rep>(__h));
}
constexpr chrono::duration<long double, ratio<3600,1>> operator"" h(long double __h)
{
return chrono::duration<long double, ratio<3600,1>>(__h);
}
constexpr chrono::minutes operator"" min(unsigned long long __m)
{
return chrono::minutes(static_cast<chrono::minutes::rep>(__m));
}
constexpr chrono::duration<long double, ratio<60,1>> operator"" min(long double __m)
{
return chrono::duration<long double, ratio<60,1>> (__m);
}
constexpr chrono::seconds operator"" s(unsigned long long __s)
{
return chrono::seconds(static_cast<chrono::seconds::rep>(__s));
}
constexpr chrono::duration<long double> operator"" s(long double __s)
{
return chrono::duration<long double> (__s);
}
constexpr chrono::milliseconds operator"" ms(unsigned long long __ms)
{
return chrono::milliseconds(static_cast<chrono::milliseconds::rep>(__ms));
}
constexpr chrono::duration<long double, milli> operator"" ms(long double __ms)
{
return chrono::duration<long double, milli>(__ms);
}
constexpr chrono::microseconds operator"" us(unsigned long long __us)
{
return chrono::microseconds(static_cast<chrono::microseconds::rep>(__us));
}
constexpr chrono::duration<long double, micro> operator"" us(long double __us)
{
return chrono::duration<long double, micro> (__us);
}
constexpr chrono::nanoseconds operator"" ns(unsigned long long __ns)
{
return chrono::nanoseconds(static_cast<chrono::nanoseconds::rep>(__ns));
}
constexpr chrono::duration<long double, nano> operator"" ns(long double __ns)
{
return chrono::duration<long double, nano> (__ns);
}
}}
namespace chrono { // hoist the literals into namespace std::chrono
using namespace literals::chrono_literals;
}
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CHRONO
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