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Diffstat (limited to '8/sources/cxx-stl/gnu-libstdc++/4.7/include/chrono')
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diff --git a/8/sources/cxx-stl/gnu-libstdc++/4.7/include/chrono b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/chrono new file mode 100644 index 0000000..0806a5d --- /dev/null +++ b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/chrono @@ -0,0 +1,738 @@ +// <chrono> -*- C++ -*- + +// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +/** @file include/chrono + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_CHRONO +#define _GLIBCXX_CHRONO 1 + +#pragma GCC system_header + +#ifndef __GXX_EXPERIMENTAL_CXX0X__ +# include <bits/c++0x_warning.h> +#else + +#include <ratio> +#include <type_traits> +#include <limits> +#include <ctime> + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ + /** + * @defgroup chrono Time + * @ingroup utilities + * + * Classes and functions for time. + * @{ + */ + + /** @namespace std::chrono + * @brief ISO C++ 0x entities sub namespace for time and date. + */ + namespace chrono + { + _GLIBCXX_BEGIN_NAMESPACE_VERSION + + template<typename _Rep, typename _Period = ratio<1>> + struct duration; + + template<typename _Clock, typename _Dur = typename _Clock::duration> + struct time_point; + + _GLIBCXX_END_NAMESPACE_VERSION + } + +_GLIBCXX_BEGIN_NAMESPACE_VERSION + // 20.8.2.3 specialization of common_type (for duration) + template<typename _Rep1, typename _Period1, typename _Rep2, typename _Period2> + struct common_type<chrono::duration<_Rep1, _Period1>, + chrono::duration<_Rep2, _Period2>> + { + private: + typedef __static_gcd<_Period1::num, _Period2::num> __gcd_num; + typedef __static_gcd<_Period1::den, _Period2::den> __gcd_den; + typedef typename common_type<_Rep1, _Rep2>::type __cr; + typedef ratio<__gcd_num::value, + (_Period1::den / __gcd_den::value) * _Period2::den> __r; + + public: + typedef chrono::duration<__cr, __r> type; + }; + + // 20.8.2.3 specialization of common_type (for time_point) + template<typename _Clock, typename _Dur1, typename _Dur2> + struct common_type<chrono::time_point<_Clock, _Dur1>, + chrono::time_point<_Clock, _Dur2>> + { + private: + typedef typename common_type<_Dur1, _Dur2>::type __ct; + + public: + typedef chrono::time_point<_Clock, __ct> type; + }; +_GLIBCXX_END_NAMESPACE_VERSION + + namespace chrono + { + _GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Primary template for duration_cast impl. + template<typename _ToDur, typename _CF, typename _CR, + bool _NumIsOne = false, bool _DenIsOne = false> + struct __duration_cast_impl + { + template<typename _Rep, typename _Period> + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>(static_cast<_CR>(__d.count()) + * static_cast<_CR>(_CF::num) + / static_cast<_CR>(_CF::den))); + } + }; + + template<typename _ToDur, typename _CF, typename _CR> + struct __duration_cast_impl<_ToDur, _CF, _CR, true, true> + { + template<typename _Rep, typename _Period> + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>(__d.count())); + } + }; + + template<typename _ToDur, typename _CF, typename _CR> + struct __duration_cast_impl<_ToDur, _CF, _CR, true, false> + { + template<typename _Rep, typename _Period> + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>( + static_cast<_CR>(__d.count()) / static_cast<_CR>(_CF::den))); + } + }; + + template<typename _ToDur, typename _CF, typename _CR> + struct __duration_cast_impl<_ToDur, _CF, _CR, false, true> + { + template<typename _Rep, typename _Period> + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>( + static_cast<_CR>(__d.count()) * static_cast<_CR>(_CF::num))); + } + }; + + template<typename _Tp> + struct __is_duration + : std::false_type + { }; + + template<typename _Rep, typename _Period> + struct __is_duration<duration<_Rep, _Period>> + : std::true_type + { }; + + /// duration_cast + template<typename _ToDur, typename _Rep, typename _Period> + constexpr typename enable_if<__is_duration<_ToDur>::value, + _ToDur>::type + duration_cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::period __to_period; + typedef typename _ToDur::rep __to_rep; + typedef ratio_divide<_Period, __to_period> __r_div; + typedef typename __r_div::type __cf; + typedef typename common_type<__to_rep, _Rep, intmax_t>::type + __cr; + typedef __duration_cast_impl<_ToDur, __cf, __cr, + __cf::num == 1, __cf::den == 1> __dc; + return __dc::__cast(__d); + } + + /// treat_as_floating_point + template<typename _Rep> + struct treat_as_floating_point + : is_floating_point<_Rep> + { }; + + /// duration_values + template<typename _Rep> + struct duration_values + { + static constexpr _Rep + zero() + { return _Rep(0); } + + static constexpr _Rep + max() + { return numeric_limits<_Rep>::max(); } + + static constexpr _Rep + min() + { return numeric_limits<_Rep>::lowest(); } + }; + + template<typename T> + struct __is_ratio + : std::false_type + { }; + + template<intmax_t _Num, intmax_t _Den> + struct __is_ratio<ratio<_Num, _Den>> + : std::true_type + { }; + + /// duration + template<typename _Rep, typename _Period> + struct duration + { + typedef _Rep rep; + typedef _Period period; + + static_assert(!__is_duration<_Rep>::value, "rep cannot be a duration"); + static_assert(__is_ratio<_Period>::value, + "period must be a specialization of ratio"); + static_assert(_Period::num > 0, "period must be positive"); + + // 20.8.3.1 construction / copy / destroy + constexpr duration() : __r() { } + + constexpr duration(const duration&) = default; + + template<typename _Rep2, typename = typename + enable_if<is_convertible<_Rep2, rep>::value + && (treat_as_floating_point<rep>::value + || !treat_as_floating_point<_Rep2>::value)>::type> + constexpr explicit duration(const _Rep2& __rep) + : __r(static_cast<rep>(__rep)) { } + + template<typename _Rep2, typename _Period2, typename = typename + enable_if<treat_as_floating_point<rep>::value + || (ratio_divide<_Period2, period>::type::den == 1 + && !treat_as_floating_point<_Rep2>::value)>::type> + constexpr duration(const duration<_Rep2, _Period2>& __d) + : __r(duration_cast<duration>(__d).count()) { } + + ~duration() = default; + duration& operator=(const duration&) = default; + + // 20.8.3.2 observer + constexpr rep + count() const + { return __r; } + + // 20.8.3.3 arithmetic + constexpr duration + operator+() const + { return *this; } + + constexpr duration + operator-() const + { return duration(-__r); } + + duration& + operator++() + { + ++__r; + return *this; + } + + duration + operator++(int) + { return duration(__r++); } + + duration& + operator--() + { + --__r; + return *this; + } + + duration + operator--(int) + { return duration(__r--); } + + duration& + operator+=(const duration& __d) + { + __r += __d.count(); + return *this; + } + + duration& + operator-=(const duration& __d) + { + __r -= __d.count(); + return *this; + } + + duration& + operator*=(const rep& __rhs) + { + __r *= __rhs; + return *this; + } + + duration& + operator/=(const rep& __rhs) + { + __r /= __rhs; + return *this; + } + + // DR 934. + template<typename _Rep2 = rep> + typename enable_if<!treat_as_floating_point<_Rep2>::value, + duration&>::type + operator%=(const rep& __rhs) + { + __r %= __rhs; + return *this; + } + + template<typename _Rep2 = rep> + typename enable_if<!treat_as_floating_point<_Rep2>::value, + duration&>::type + operator%=(const duration& __d) + { + __r %= __d.count(); + return *this; + } + + // 20.8.3.4 special values + static constexpr duration + zero() + { return duration(duration_values<rep>::zero()); } + + static constexpr duration + min() + { return duration(duration_values<rep>::min()); } + + static constexpr duration + max() + { return duration(duration_values<rep>::max()); } + + private: + rep __r; + }; + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr typename common_type<duration<_Rep1, _Period1>, + duration<_Rep2, _Period2>>::type + operator+(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__cd(__lhs).count() + __cd(__rhs).count()); + } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr typename common_type<duration<_Rep1, _Period1>, + duration<_Rep2, _Period2>>::type + operator-(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__cd(__lhs).count() - __cd(__rhs).count()); + } + + template<typename _Rep1, typename _Rep2, bool = + is_convertible<_Rep2, + typename common_type<_Rep1, _Rep2>::type>::value> + struct __common_rep_type { }; + + template<typename _Rep1, typename _Rep2> + struct __common_rep_type<_Rep1, _Rep2, true> + { typedef typename common_type<_Rep1, _Rep2>::type type; }; + + template<typename _Rep1, typename _Period, typename _Rep2> + constexpr + duration<typename __common_rep_type<_Rep1, _Rep2>::type, _Period> + operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) + { + typedef duration<typename common_type<_Rep1, _Rep2>::type, _Period> + __cd; + return __cd(__cd(__d).count() * __s); + } + + template<typename _Rep1, typename _Rep2, typename _Period> + constexpr + duration<typename __common_rep_type<_Rep2, _Rep1>::type, _Period> + operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) + { return __d * __s; } + + template<typename _Rep1, typename _Period, typename _Rep2> + constexpr duration<typename __common_rep_type<_Rep1, typename + enable_if<!__is_duration<_Rep2>::value, _Rep2>::type>::type, _Period> + operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) + { + typedef duration<typename common_type<_Rep1, _Rep2>::type, _Period> + __cd; + return __cd(__cd(__d).count() / __s); + } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr typename common_type<_Rep1, _Rep2>::type + operator/(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__lhs).count() / __cd(__rhs).count(); + } + + // DR 934. + template<typename _Rep1, typename _Period, typename _Rep2> + constexpr duration<typename __common_rep_type<_Rep1, typename + enable_if<!__is_duration<_Rep2>::value, _Rep2>::type>::type, _Period> + operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) + { + typedef duration<typename common_type<_Rep1, _Rep2>::type, _Period> + __cd; + return __cd(__cd(__d).count() % __s); + } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr typename common_type<duration<_Rep1, _Period1>, + duration<_Rep2, _Period2>>::type + operator%(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__cd(__lhs).count() % __cd(__rhs).count()); + } + + // comparisons + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr bool + operator==(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __ct; + return __ct(__lhs).count() == __ct(__rhs).count(); + } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr bool + operator<(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __ct; + return __ct(__lhs).count() < __ct(__rhs).count(); + } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr bool + operator!=(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return !(__lhs == __rhs); } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr bool + operator<=(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return !(__rhs < __lhs); } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr bool + operator>(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return __rhs < __lhs; } + + template<typename _Rep1, typename _Period1, + typename _Rep2, typename _Period2> + constexpr bool + operator>=(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return !(__lhs < __rhs); } + + /// nanoseconds + typedef duration<int64_t, nano> nanoseconds; + + /// microseconds + typedef duration<int64_t, micro> microseconds; + + /// milliseconds + typedef duration<int64_t, milli> milliseconds; + + /// seconds + typedef duration<int64_t> seconds; + + /// minutes + typedef duration<int, ratio< 60>> minutes; + + /// hours + typedef duration<int, ratio<3600>> hours; + + /// time_point + template<typename _Clock, typename _Dur> + struct time_point + { + typedef _Clock clock; + typedef _Dur duration; + typedef typename duration::rep rep; + typedef typename duration::period period; + + constexpr time_point() : __d(duration::zero()) + { } + + constexpr explicit time_point(const duration& __dur) + : __d(__dur) + { } + + // conversions + template<typename _Dur2> + constexpr time_point(const time_point<clock, _Dur2>& __t) + : __d(__t.time_since_epoch()) + { } + + // observer + constexpr duration + time_since_epoch() const + { return __d; } + + // arithmetic + time_point& + operator+=(const duration& __dur) + { + __d += __dur; + return *this; + } + + time_point& + operator-=(const duration& __dur) + { + __d -= __dur; + return *this; + } + + // special values + static constexpr time_point + min() + { return time_point(duration::min()); } + + static constexpr time_point + max() + { return time_point(duration::max()); } + + private: + duration __d; + }; + + /// time_point_cast + template<typename _ToDur, typename _Clock, typename _Dur> + constexpr typename enable_if<__is_duration<_ToDur>::value, + time_point<_Clock, _ToDur>>::type + time_point_cast(const time_point<_Clock, _Dur>& __t) + { + typedef time_point<_Clock, _ToDur> __time_point; + return __time_point(duration_cast<_ToDur>(__t.time_since_epoch())); + } + + 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) + { + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<_Dur1,__dur2>::type __ct; + typedef time_point<_Clock, __ct> __time_point; + return __time_point(__lhs.time_since_epoch() + __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) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef typename common_type<__dur1,_Dur2>::type __ct; + typedef time_point<_Clock, __ct> __time_point; + return __time_point(__rhs.time_since_epoch() + __lhs); + } + + 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) + { + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<_Dur1,__dur2>::type __ct; + typedef time_point<_Clock, __ct> __time_point; + return __time_point(__lhs.time_since_epoch() -__rhs); + } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr typename common_type<_Dur1, _Dur2>::type + operator-(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() - __rhs.time_since_epoch(); } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr bool + operator==(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() == __rhs.time_since_epoch(); } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr bool + operator!=(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return !(__lhs == __rhs); } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr bool + operator<(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() < __rhs.time_since_epoch(); } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr bool + operator<=(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return !(__rhs < __lhs); } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr bool + operator>(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __rhs < __lhs; } + + template<typename _Clock, typename _Dur1, typename _Dur2> + constexpr bool + operator>=(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return !(__lhs < __rhs); } + + /// system_clock + struct system_clock + { +#ifdef _GLIBCXX_USE_CLOCK_REALTIME + typedef chrono::nanoseconds duration; +#elif defined(_GLIBCXX_USE_GETTIMEOFDAY) + typedef chrono::microseconds duration; +#else + typedef chrono::seconds duration; +#endif + + typedef duration::rep rep; + typedef duration::period period; + typedef chrono::time_point<system_clock, duration> time_point; + + static_assert(system_clock::duration::min() + < system_clock::duration::zero(), + "a clock's minimum duration cannot be less than its epoch"); + + static constexpr bool is_steady = false; + + static time_point + now() noexcept; + + // Map to C API + static std::time_t + to_time_t(const time_point& __t) noexcept + { + return std::time_t(duration_cast<chrono::seconds> + (__t.time_since_epoch()).count()); + } + + static time_point + from_time_t(std::time_t __t) noexcept + { + typedef chrono::time_point<system_clock, seconds> __from; + return time_point_cast<system_clock::duration> + (__from(chrono::seconds(__t))); + } + }; + +#ifdef _GLIBCXX_USE_CLOCK_MONOTONIC + /// steady_clock + struct steady_clock + { + typedef chrono::nanoseconds duration; + typedef duration::rep rep; + typedef duration::period period; + typedef chrono::time_point<steady_clock, duration> time_point; + + static constexpr bool is_steady = true; + + static time_point + now() noexcept; + }; +#else + typedef system_clock steady_clock; +#endif + + typedef system_clock high_resolution_clock; + + _GLIBCXX_END_NAMESPACE_VERSION + } // namespace chrono + + // @} group chrono +} // namespace + +#endif //_GLIBCXX_USE_C99_STDINT_TR1 + +#endif //__GXX_EXPERIMENTAL_CXX0X__ + +#endif //_GLIBCXX_CHRONO |