Restoring authorship annotation for Andrey Khalyavin <halyavin@gmail.com>. Commit 2 of 2.

1 files changed, 409 insertions, 409 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/thread b/contrib/libs/cxxsupp/libcxx/include/thread
index 90183d2b6b..9b591976ac 100644
--- a/contrib/libs/cxxsupp/libcxx/include/thread
+++ b/contrib/libs/cxxsupp/libcxx/include/thread
@@ -1,413 +1,413 @@
-// -*- C++ -*- 
-//===--------------------------- thread -----------------------------------===// 
-// 
+// -*- C++ -*-
+//===--------------------------- thread -----------------------------------===//
+//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-// 
-//===----------------------------------------------------------------------===// 
- 
-#ifndef _LIBCPP_THREAD 
-#define _LIBCPP_THREAD 
- 
-/* 
- 
-    thread synopsis 
- 
-namespace std 
-{ 
- 
-class thread 
-{ 
-public: 
-    class id; 
-    typedef pthread_t native_handle_type; 
- 
-    thread() noexcept; 
-    template <class F, class ...Args> explicit thread(F&& f, Args&&... args); 
-    ~thread(); 
- 
-    thread(const thread&) = delete; 
-    thread(thread&& t) noexcept; 
- 
-    thread& operator=(const thread&) = delete; 
-    thread& operator=(thread&& t) noexcept; 
- 
-    void swap(thread& t) noexcept; 
- 
-    bool joinable() const noexcept; 
-    void join(); 
-    void detach(); 
-    id get_id() const noexcept; 
-    native_handle_type native_handle(); 
- 
-    static unsigned hardware_concurrency() noexcept; 
-}; 
- 
-void swap(thread& x, thread& y) noexcept; 
- 
-class thread::id 
-{ 
-public: 
-    id() noexcept; 
-}; 
- 
-bool operator==(thread::id x, thread::id y) noexcept; 
-bool operator!=(thread::id x, thread::id y) noexcept; 
-bool operator< (thread::id x, thread::id y) noexcept; 
-bool operator<=(thread::id x, thread::id y) noexcept; 
-bool operator> (thread::id x, thread::id y) noexcept; 
-bool operator>=(thread::id x, thread::id y) noexcept; 
- 
-template<class charT, class traits> 
-basic_ostream<charT, traits>& 
-operator<<(basic_ostream<charT, traits>& out, thread::id id); 
- 
-namespace this_thread 
-{ 
- 
-thread::id get_id() noexcept; 
- 
-void yield() noexcept; 
- 
-template <class Clock, class Duration> 
-void sleep_until(const chrono::time_point<Clock, Duration>& abs_time); 
- 
-template <class Rep, class Period> 
-void sleep_for(const chrono::duration<Rep, Period>& rel_time); 
- 
-}  // this_thread 
- 
-}  // std 
- 
-*/ 
- 
-#include <__config> 
-#include <__debug> 
-#include <__functional_base> 
-#include <__mutex_base> 
-#include <__threading_support> 
-#include <__utility/decay_copy.h> 
-#include <__utility/forward.h> 
-#include <chrono> 
-#include <cstddef> 
-#include <functional> 
-#include <iosfwd> 
-#include <memory> 
-#include <system_error> 
-#include <tuple> 
-#include <type_traits> 
- 
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 
-#pragma GCC system_header 
-#endif 
- 
-_LIBCPP_PUSH_MACROS 
-#include <__undef_macros> 
- 
-#ifdef _LIBCPP_HAS_NO_THREADS 
-#error <thread> is not supported on this single threaded system 
-#else // !_LIBCPP_HAS_NO_THREADS 
- 
-_LIBCPP_BEGIN_NAMESPACE_STD 
- 
-template <class _Tp> class __thread_specific_ptr; 
-class _LIBCPP_TYPE_VIS __thread_struct; 
-class _LIBCPP_HIDDEN __thread_struct_imp; 
-class __assoc_sub_state; 
- 
-_LIBCPP_FUNC_VIS __thread_specific_ptr<__thread_struct>& __thread_local_data(); 
- 
-class _LIBCPP_TYPE_VIS __thread_struct 
-{ 
-    __thread_struct_imp* __p_; 
- 
-    __thread_struct(const __thread_struct&); 
-    __thread_struct& operator=(const __thread_struct&); 
-public: 
-    __thread_struct(); 
-    ~__thread_struct(); 
- 
-    void notify_all_at_thread_exit(condition_variable*, mutex*); 
-    void __make_ready_at_thread_exit(__assoc_sub_state*); 
-}; 
- 
-template <class _Tp> 
-class __thread_specific_ptr 
-{ 
-    __libcpp_tls_key __key_; 
- 
-     // Only __thread_local_data() may construct a __thread_specific_ptr 
-     // and only with _Tp == __thread_struct. 
-    static_assert((is_same<_Tp, __thread_struct>::value), ""); 
-    __thread_specific_ptr(); 
-    friend _LIBCPP_FUNC_VIS __thread_specific_ptr<__thread_struct>& __thread_local_data(); 
- 
-    __thread_specific_ptr(const __thread_specific_ptr&); 
-    __thread_specific_ptr& operator=(const __thread_specific_ptr&); 
- 
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_THREAD
+#define _LIBCPP_THREAD
+
+/*
+
+    thread synopsis
+
+namespace std
+{
+
+class thread
+{
+public:
+    class id;
+    typedef pthread_t native_handle_type;
+
+    thread() noexcept;
+    template <class F, class ...Args> explicit thread(F&& f, Args&&... args);
+    ~thread();
+
+    thread(const thread&) = delete;
+    thread(thread&& t) noexcept;
+
+    thread& operator=(const thread&) = delete;
+    thread& operator=(thread&& t) noexcept;
+
+    void swap(thread& t) noexcept;
+
+    bool joinable() const noexcept;
+    void join();
+    void detach();
+    id get_id() const noexcept;
+    native_handle_type native_handle();
+
+    static unsigned hardware_concurrency() noexcept;
+};
+
+void swap(thread& x, thread& y) noexcept;
+
+class thread::id
+{
+public:
+    id() noexcept;
+};
+
+bool operator==(thread::id x, thread::id y) noexcept;
+bool operator!=(thread::id x, thread::id y) noexcept;
+bool operator< (thread::id x, thread::id y) noexcept;
+bool operator<=(thread::id x, thread::id y) noexcept;
+bool operator> (thread::id x, thread::id y) noexcept;
+bool operator>=(thread::id x, thread::id y) noexcept;
+
+template<class charT, class traits>
+basic_ostream<charT, traits>&
+operator<<(basic_ostream<charT, traits>& out, thread::id id);
+
+namespace this_thread
+{
+
+thread::id get_id() noexcept;
+
+void yield() noexcept;
+
+template <class Clock, class Duration>
+void sleep_until(const chrono::time_point<Clock, Duration>& abs_time);
+
+template <class Rep, class Period>
+void sleep_for(const chrono::duration<Rep, Period>& rel_time);
+
+}  // this_thread
+
+}  // std
+
+*/
+
+#include <__config>
+#include <__debug>
+#include <__functional_base>
+#include <__mutex_base>
+#include <__threading_support>
+#include <__utility/decay_copy.h>
+#include <__utility/forward.h>
+#include <chrono>
+#include <cstddef>
+#include <functional>
+#include <iosfwd>
+#include <memory>
+#include <system_error>
+#include <tuple>
+#include <type_traits>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#ifdef _LIBCPP_HAS_NO_THREADS
+#error <thread> is not supported on this single threaded system
+#else // !_LIBCPP_HAS_NO_THREADS
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Tp> class __thread_specific_ptr;
+class _LIBCPP_TYPE_VIS __thread_struct;
+class _LIBCPP_HIDDEN __thread_struct_imp;
+class __assoc_sub_state;
+
+_LIBCPP_FUNC_VIS __thread_specific_ptr<__thread_struct>& __thread_local_data();
+
+class _LIBCPP_TYPE_VIS __thread_struct
+{
+    __thread_struct_imp* __p_;
+
+    __thread_struct(const __thread_struct&);
+    __thread_struct& operator=(const __thread_struct&);
+public:
+    __thread_struct();
+    ~__thread_struct();
+
+    void notify_all_at_thread_exit(condition_variable*, mutex*);
+    void __make_ready_at_thread_exit(__assoc_sub_state*);
+};
+
+template <class _Tp>
+class __thread_specific_ptr
+{
+    __libcpp_tls_key __key_;
+
+     // Only __thread_local_data() may construct a __thread_specific_ptr
+     // and only with _Tp == __thread_struct.
+    static_assert((is_same<_Tp, __thread_struct>::value), "");
+    __thread_specific_ptr();
+    friend _LIBCPP_FUNC_VIS __thread_specific_ptr<__thread_struct>& __thread_local_data();
+
+    __thread_specific_ptr(const __thread_specific_ptr&);
+    __thread_specific_ptr& operator=(const __thread_specific_ptr&);
+
     _LIBCPP_HIDDEN static void _LIBCPP_TLS_DESTRUCTOR_CC __at_thread_exit(void*);
- 
-public: 
-    typedef _Tp* pointer; 
- 
-    ~__thread_specific_ptr(); 
- 
-    _LIBCPP_INLINE_VISIBILITY 
-    pointer get() const {return static_cast<_Tp*>(__libcpp_tls_get(__key_));} 
-    _LIBCPP_INLINE_VISIBILITY 
-    pointer operator*() const {return *get();} 
-    _LIBCPP_INLINE_VISIBILITY 
-    pointer operator->() const {return get();} 
-    void set_pointer(pointer __p); 
-}; 
- 
-template <class _Tp> 
-void _LIBCPP_TLS_DESTRUCTOR_CC 
-__thread_specific_ptr<_Tp>::__at_thread_exit(void* __p) 
-{ 
-    delete static_cast<pointer>(__p); 
-} 
- 
-template <class _Tp> 
-__thread_specific_ptr<_Tp>::__thread_specific_ptr() 
-{ 
-  int __ec = 
-      __libcpp_tls_create(&__key_, &__thread_specific_ptr::__at_thread_exit); 
-  if (__ec) 
-    __throw_system_error(__ec, "__thread_specific_ptr construction failed"); 
-} 
- 
-template <class _Tp> 
-__thread_specific_ptr<_Tp>::~__thread_specific_ptr() 
-{ 
-    // __thread_specific_ptr is only created with a static storage duration 
-    // so this destructor is only invoked during program termination. Invoking 
-    // pthread_key_delete(__key_) may prevent other threads from deleting their 
-    // thread local data. For this reason we leak the key. 
-} 
- 
-template <class _Tp> 
-void 
-__thread_specific_ptr<_Tp>::set_pointer(pointer __p) 
-{ 
-    _LIBCPP_ASSERT(get() == nullptr, 
-                   "Attempting to overwrite thread local data"); 
-    __libcpp_tls_set(__key_, __p); 
-} 
- 
-template<> 
-struct _LIBCPP_TEMPLATE_VIS hash<__thread_id> 
-    : public unary_function<__thread_id, size_t> 
-{ 
-    _LIBCPP_INLINE_VISIBILITY 
-    size_t operator()(__thread_id __v) const _NOEXCEPT 
-    { 
-        return hash<__libcpp_thread_id>()(__v.__id_); 
-    } 
-}; 
- 
-template<class _CharT, class _Traits> 
-_LIBCPP_INLINE_VISIBILITY 
-basic_ostream<_CharT, _Traits>& 
-operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id) 
-{return __os << __id.__id_;} 
- 
-class _LIBCPP_TYPE_VIS thread 
-{ 
-    __libcpp_thread_t __t_; 
- 
-    thread(const thread&); 
-    thread& operator=(const thread&); 
-public: 
-    typedef __thread_id id; 
-    typedef __libcpp_thread_t native_handle_type; 
- 
-    _LIBCPP_INLINE_VISIBILITY 
-    thread() _NOEXCEPT : __t_(_LIBCPP_NULL_THREAD) {} 
-#ifndef _LIBCPP_CXX03_LANG 
-    template <class _Fp, class ..._Args, 
-              class = typename enable_if 
-              < 
-                   !is_same<typename __uncvref<_Fp>::type, thread>::value 
-              >::type 
-             > 
-        _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 
-        explicit thread(_Fp&& __f, _Args&&... __args); 
-#else  // _LIBCPP_CXX03_LANG 
-    template <class _Fp> 
-    _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 
-    explicit thread(_Fp __f); 
-#endif 
-    ~thread(); 
- 
-    _LIBCPP_INLINE_VISIBILITY 
-    thread(thread&& __t) _NOEXCEPT : __t_(__t.__t_) { 
-        __t.__t_ = _LIBCPP_NULL_THREAD; 
-    } 
- 
-    _LIBCPP_INLINE_VISIBILITY 
-    thread& operator=(thread&& __t) _NOEXCEPT { 
-        if (!__libcpp_thread_isnull(&__t_)) 
-            terminate(); 
-        __t_ = __t.__t_; 
-        __t.__t_ = _LIBCPP_NULL_THREAD; 
-        return *this; 
-    } 
- 
-    _LIBCPP_INLINE_VISIBILITY 
-    void swap(thread& __t) _NOEXCEPT {_VSTD::swap(__t_, __t.__t_);} 
- 
-    _LIBCPP_INLINE_VISIBILITY 
-    bool joinable() const _NOEXCEPT {return !__libcpp_thread_isnull(&__t_);} 
-    void join(); 
-    void detach(); 
-    _LIBCPP_INLINE_VISIBILITY 
-    id get_id() const _NOEXCEPT {return __libcpp_thread_get_id(&__t_);} 
-    _LIBCPP_INLINE_VISIBILITY 
-    native_handle_type native_handle() _NOEXCEPT {return __t_;} 
- 
-    static unsigned hardware_concurrency() _NOEXCEPT; 
-}; 
- 
-#ifndef _LIBCPP_CXX03_LANG 
- 
-template <class _TSp, class _Fp, class ..._Args, size_t ..._Indices> 
-inline _LIBCPP_INLINE_VISIBILITY 
-void 
-__thread_execute(tuple<_TSp, _Fp, _Args...>& __t, __tuple_indices<_Indices...>) 
-{ 
-    _VSTD::__invoke(_VSTD::move(_VSTD::get<1>(__t)), _VSTD::move(_VSTD::get<_Indices>(__t))...); 
-} 
- 
-template <class _Fp> 
-_LIBCPP_INLINE_VISIBILITY 
-void* __thread_proxy(void* __vp) 
-{ 
-    // _Fp = tuple< unique_ptr<__thread_struct>, Functor, Args...> 
-    unique_ptr<_Fp> __p(static_cast<_Fp*>(__vp)); 
-    __thread_local_data().set_pointer(_VSTD::get<0>(*__p.get()).release()); 
-    typedef typename __make_tuple_indices<tuple_size<_Fp>::value, 2>::type _Index; 
-    _VSTD::__thread_execute(*__p.get(), _Index()); 
-    return nullptr; 
-} 
- 
-template <class _Fp, class ..._Args, 
-          class 
-         > 
-thread::thread(_Fp&& __f, _Args&&... __args) 
-{ 
-    typedef unique_ptr<__thread_struct> _TSPtr; 
-    _TSPtr __tsp(new __thread_struct); 
-    typedef tuple<_TSPtr, typename decay<_Fp>::type, typename decay<_Args>::type...> _Gp; 
-    unique_ptr<_Gp> __p( 
-            new _Gp(_VSTD::move(__tsp), 
-                    _VSTD::__decay_copy(_VSTD::forward<_Fp>(__f)), 
-                    _VSTD::__decay_copy(_VSTD::forward<_Args>(__args))...)); 
-    int __ec = _VSTD::__libcpp_thread_create(&__t_, &__thread_proxy<_Gp>, __p.get()); 
-    if (__ec == 0) 
-        __p.release(); 
-    else 
-        __throw_system_error(__ec, "thread constructor failed"); 
-} 
- 
-#else  // _LIBCPP_CXX03_LANG 
- 
-template <class _Fp> 
-struct __thread_invoke_pair { 
-    // This type is used to pass memory for thread local storage and a functor 
-    // to a newly created thread because std::pair doesn't work with 
-    // std::unique_ptr in C++03. 
-    __thread_invoke_pair(_Fp& __f) : __tsp_(new __thread_struct), __fn_(__f) {} 
-    unique_ptr<__thread_struct> __tsp_; 
-    _Fp __fn_; 
-}; 
- 
-template <class _Fp> 
-void* __thread_proxy_cxx03(void* __vp) 
-{ 
-    unique_ptr<_Fp> __p(static_cast<_Fp*>(__vp)); 
-    __thread_local_data().set_pointer(__p->__tsp_.release()); 
-    (__p->__fn_)(); 
-    return nullptr; 
-} 
- 
-template <class _Fp> 
-thread::thread(_Fp __f) 
-{ 
- 
-    typedef __thread_invoke_pair<_Fp> _InvokePair; 
-    typedef unique_ptr<_InvokePair> _PairPtr; 
-    _PairPtr __pp(new _InvokePair(__f)); 
-    int __ec = _VSTD::__libcpp_thread_create(&__t_, &__thread_proxy_cxx03<_InvokePair>, __pp.get()); 
-    if (__ec == 0) 
-        __pp.release(); 
-    else 
-        __throw_system_error(__ec, "thread constructor failed"); 
-} 
- 
-#endif // _LIBCPP_CXX03_LANG 
- 
-inline _LIBCPP_INLINE_VISIBILITY 
-void swap(thread& __x, thread& __y) _NOEXCEPT {__x.swap(__y);} 
- 
-namespace this_thread 
-{ 
- 
-_LIBCPP_FUNC_VIS void sleep_for(const chrono::nanoseconds& __ns); 
- 
-template <class _Rep, class _Period> 
-void 
-sleep_for(const chrono::duration<_Rep, _Period>& __d) 
-{ 
-    if (__d > chrono::duration<_Rep, _Period>::zero()) 
-    { 
-        // The standard guarantees a 64bit signed integer resolution for nanoseconds, 
-        // so use INT64_MAX / 1e9 as cut-off point. Use a constant to avoid <climits> 
-        // and issues with long double folding on PowerPC with GCC. 
-        _LIBCPP_CONSTEXPR chrono::duration<long double> _Max = 
-            chrono::duration<long double>(9223372036.0L); 
-        chrono::nanoseconds __ns; 
-        if (__d < _Max) 
-        { 
-            __ns = chrono::duration_cast<chrono::nanoseconds>(__d); 
-            if (__ns < __d) 
-                ++__ns; 
-        } 
-        else 
-            __ns = chrono::nanoseconds::max(); 
-        this_thread::sleep_for(__ns); 
-    } 
-} 
- 
-template <class _Clock, class _Duration> 
-void 
-sleep_until(const chrono::time_point<_Clock, _Duration>& __t) 
-{ 
-    mutex __mut; 
-    condition_variable __cv; 
-    unique_lock<mutex> __lk(__mut); 
-    while (_Clock::now() < __t) 
-        __cv.wait_until(__lk, __t); 
-} 
- 
-template <class _Duration> 
-inline _LIBCPP_INLINE_VISIBILITY 
-void 
-sleep_until(const chrono::time_point<chrono::steady_clock, _Duration>& __t) 
-{ 
-    this_thread::sleep_for(__t - chrono::steady_clock::now()); 
-} 
- 
-inline _LIBCPP_INLINE_VISIBILITY 
-void yield() _NOEXCEPT {__libcpp_thread_yield();} 
- 
-}  // this_thread 
- 
-_LIBCPP_END_NAMESPACE_STD 
- 
-#endif // !_LIBCPP_HAS_NO_THREADS 
- 
-_LIBCPP_POP_MACROS 
- 
-#endif // _LIBCPP_THREAD 
+
+public:
+    typedef _Tp* pointer;
+
+    ~__thread_specific_ptr();
+
+    _LIBCPP_INLINE_VISIBILITY
+    pointer get() const {return static_cast<_Tp*>(__libcpp_tls_get(__key_));}
+    _LIBCPP_INLINE_VISIBILITY
+    pointer operator*() const {return *get();}
+    _LIBCPP_INLINE_VISIBILITY
+    pointer operator->() const {return get();}
+    void set_pointer(pointer __p);
+};
+
+template <class _Tp>
+void _LIBCPP_TLS_DESTRUCTOR_CC
+__thread_specific_ptr<_Tp>::__at_thread_exit(void* __p)
+{
+    delete static_cast<pointer>(__p);
+}
+
+template <class _Tp>
+__thread_specific_ptr<_Tp>::__thread_specific_ptr()
+{
+  int __ec =
+      __libcpp_tls_create(&__key_, &__thread_specific_ptr::__at_thread_exit);
+  if (__ec)
+    __throw_system_error(__ec, "__thread_specific_ptr construction failed");
+}
+
+template <class _Tp>
+__thread_specific_ptr<_Tp>::~__thread_specific_ptr()
+{
+    // __thread_specific_ptr is only created with a static storage duration
+    // so this destructor is only invoked during program termination. Invoking
+    // pthread_key_delete(__key_) may prevent other threads from deleting their
+    // thread local data. For this reason we leak the key.
+}
+
+template <class _Tp>
+void
+__thread_specific_ptr<_Tp>::set_pointer(pointer __p)
+{
+    _LIBCPP_ASSERT(get() == nullptr,
+                   "Attempting to overwrite thread local data");
+    __libcpp_tls_set(__key_, __p);
+}
+
+template<>
+struct _LIBCPP_TEMPLATE_VIS hash<__thread_id>
+    : public unary_function<__thread_id, size_t>
+{
+    _LIBCPP_INLINE_VISIBILITY
+    size_t operator()(__thread_id __v) const _NOEXCEPT
+    {
+        return hash<__libcpp_thread_id>()(__v.__id_);
+    }
+};
+
+template<class _CharT, class _Traits>
+_LIBCPP_INLINE_VISIBILITY
+basic_ostream<_CharT, _Traits>&
+operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id)
+{return __os << __id.__id_;}
+
+class _LIBCPP_TYPE_VIS thread
+{
+    __libcpp_thread_t __t_;
+
+    thread(const thread&);
+    thread& operator=(const thread&);
+public:
+    typedef __thread_id id;
+    typedef __libcpp_thread_t native_handle_type;
+
+    _LIBCPP_INLINE_VISIBILITY
+    thread() _NOEXCEPT : __t_(_LIBCPP_NULL_THREAD) {}
+#ifndef _LIBCPP_CXX03_LANG
+    template <class _Fp, class ..._Args,
+              class = typename enable_if
+              <
+                   !is_same<typename __uncvref<_Fp>::type, thread>::value
+              >::type
+             >
+        _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
+        explicit thread(_Fp&& __f, _Args&&... __args);
+#else  // _LIBCPP_CXX03_LANG
+    template <class _Fp>
+    _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
+    explicit thread(_Fp __f);
+#endif
+    ~thread();
+
+    _LIBCPP_INLINE_VISIBILITY
+    thread(thread&& __t) _NOEXCEPT : __t_(__t.__t_) {
+        __t.__t_ = _LIBCPP_NULL_THREAD;
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    thread& operator=(thread&& __t) _NOEXCEPT {
+        if (!__libcpp_thread_isnull(&__t_))
+            terminate();
+        __t_ = __t.__t_;
+        __t.__t_ = _LIBCPP_NULL_THREAD;
+        return *this;
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    void swap(thread& __t) _NOEXCEPT {_VSTD::swap(__t_, __t.__t_);}
+
+    _LIBCPP_INLINE_VISIBILITY
+    bool joinable() const _NOEXCEPT {return !__libcpp_thread_isnull(&__t_);}
+    void join();
+    void detach();
+    _LIBCPP_INLINE_VISIBILITY
+    id get_id() const _NOEXCEPT {return __libcpp_thread_get_id(&__t_);}
+    _LIBCPP_INLINE_VISIBILITY
+    native_handle_type native_handle() _NOEXCEPT {return __t_;}
+
+    static unsigned hardware_concurrency() _NOEXCEPT;
+};
+
+#ifndef _LIBCPP_CXX03_LANG
+
+template <class _TSp, class _Fp, class ..._Args, size_t ..._Indices>
+inline _LIBCPP_INLINE_VISIBILITY
+void
+__thread_execute(tuple<_TSp, _Fp, _Args...>& __t, __tuple_indices<_Indices...>)
+{
+    _VSTD::__invoke(_VSTD::move(_VSTD::get<1>(__t)), _VSTD::move(_VSTD::get<_Indices>(__t))...);
+}
+
+template <class _Fp>
+_LIBCPP_INLINE_VISIBILITY
+void* __thread_proxy(void* __vp)
+{
+    // _Fp = tuple< unique_ptr<__thread_struct>, Functor, Args...>
+    unique_ptr<_Fp> __p(static_cast<_Fp*>(__vp));
+    __thread_local_data().set_pointer(_VSTD::get<0>(*__p.get()).release());
+    typedef typename __make_tuple_indices<tuple_size<_Fp>::value, 2>::type _Index;
+    _VSTD::__thread_execute(*__p.get(), _Index());
+    return nullptr;
+}
+
+template <class _Fp, class ..._Args,
+          class
+         >
+thread::thread(_Fp&& __f, _Args&&... __args)
+{
+    typedef unique_ptr<__thread_struct> _TSPtr;
+    _TSPtr __tsp(new __thread_struct);
+    typedef tuple<_TSPtr, typename decay<_Fp>::type, typename decay<_Args>::type...> _Gp;
+    unique_ptr<_Gp> __p(
+            new _Gp(_VSTD::move(__tsp),
+                    _VSTD::__decay_copy(_VSTD::forward<_Fp>(__f)),
+                    _VSTD::__decay_copy(_VSTD::forward<_Args>(__args))...));
+    int __ec = _VSTD::__libcpp_thread_create(&__t_, &__thread_proxy<_Gp>, __p.get());
+    if (__ec == 0)
+        __p.release();
+    else
+        __throw_system_error(__ec, "thread constructor failed");
+}
+
+#else  // _LIBCPP_CXX03_LANG
+
+template <class _Fp>
+struct __thread_invoke_pair {
+    // This type is used to pass memory for thread local storage and a functor
+    // to a newly created thread because std::pair doesn't work with
+    // std::unique_ptr in C++03.
+    __thread_invoke_pair(_Fp& __f) : __tsp_(new __thread_struct), __fn_(__f) {}
+    unique_ptr<__thread_struct> __tsp_;
+    _Fp __fn_;
+};
+
+template <class _Fp>
+void* __thread_proxy_cxx03(void* __vp)
+{
+    unique_ptr<_Fp> __p(static_cast<_Fp*>(__vp));
+    __thread_local_data().set_pointer(__p->__tsp_.release());
+    (__p->__fn_)();
+    return nullptr;
+}
+
+template <class _Fp>
+thread::thread(_Fp __f)
+{
+
+    typedef __thread_invoke_pair<_Fp> _InvokePair;
+    typedef unique_ptr<_InvokePair> _PairPtr;
+    _PairPtr __pp(new _InvokePair(__f));
+    int __ec = _VSTD::__libcpp_thread_create(&__t_, &__thread_proxy_cxx03<_InvokePair>, __pp.get());
+    if (__ec == 0)
+        __pp.release();
+    else
+        __throw_system_error(__ec, "thread constructor failed");
+}
+
+#endif // _LIBCPP_CXX03_LANG
+
+inline _LIBCPP_INLINE_VISIBILITY
+void swap(thread& __x, thread& __y) _NOEXCEPT {__x.swap(__y);}
+
+namespace this_thread
+{
+
+_LIBCPP_FUNC_VIS void sleep_for(const chrono::nanoseconds& __ns);
+
+template <class _Rep, class _Period>
+void
+sleep_for(const chrono::duration<_Rep, _Period>& __d)
+{
+    if (__d > chrono::duration<_Rep, _Period>::zero())
+    {
+        // The standard guarantees a 64bit signed integer resolution for nanoseconds,
+        // so use INT64_MAX / 1e9 as cut-off point. Use a constant to avoid <climits>
+        // and issues with long double folding on PowerPC with GCC.
+        _LIBCPP_CONSTEXPR chrono::duration<long double> _Max =
+            chrono::duration<long double>(9223372036.0L);
+        chrono::nanoseconds __ns;
+        if (__d < _Max)
+        {
+            __ns = chrono::duration_cast<chrono::nanoseconds>(__d);
+            if (__ns < __d)
+                ++__ns;
+        }
+        else
+            __ns = chrono::nanoseconds::max();
+        this_thread::sleep_for(__ns);
+    }
+}
+
+template <class _Clock, class _Duration>
+void
+sleep_until(const chrono::time_point<_Clock, _Duration>& __t)
+{
+    mutex __mut;
+    condition_variable __cv;
+    unique_lock<mutex> __lk(__mut);
+    while (_Clock::now() < __t)
+        __cv.wait_until(__lk, __t);
+}
+
+template <class _Duration>
+inline _LIBCPP_INLINE_VISIBILITY
+void
+sleep_until(const chrono::time_point<chrono::steady_clock, _Duration>& __t)
+{
+    this_thread::sleep_for(__t - chrono::steady_clock::now());
+}
+
+inline _LIBCPP_INLINE_VISIBILITY
+void yield() _NOEXCEPT {__libcpp_thread_yield();}
+
+}  // this_thread
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // !_LIBCPP_HAS_NO_THREADS
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP_THREAD