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35d2fcfc8e2462bccf0b078c457c052138dbc4ed
cxx/include/memory
Douglas Gregor 35d2fcfc8e Teach libc++ about the addressof() overloads it needs to work with 
Objective-C Automatic Reference Counting, where Objective-C object
pointers can have several different qualifiers (__strong, __weak,
__autoreleasing, __unsafe_unretained). These addressof() overloads are
only provided in ARC mode, and the __weak variant is conditionalized
on having weak-reference support in the ARC runtime.

For historical reasons, Clang provides these definitions itself, and
defines the macro _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF to note when
it as done so. The code belongs here, and this redundancy will be
eliminated in the future.

Addresses <rdar://problem/9658274>.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@133656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22 22:17:44 +00:00

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// -*- C++ -*-
//===-------------------------- memory ------------------------------------===//
//
// 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_MEMORY
#define _LIBCPP_MEMORY
/*
memory synopsis
namespace std
{
struct allocator_arg_t { };
constexpr allocator_arg_t allocator_arg = allocator_arg_t();
template <class T, class Alloc> struct uses_allocator;
template <class Ptr>
struct pointer_traits
{
typedef Ptr pointer;
typedef <details> element_type;
typedef <details> difference_type;
template <class U> using rebind = <details>;
static pointer pointer_to(<details>);
};
template <class T>
struct pointer_traits<T*>
{
typedef T* pointer;
typedef T element_type;
typedef ptrdiff_t difference_type;
template <class U> using rebind = U*;
static pointer pointer_to(<details>) noexcept;
};
template <class Alloc>
struct allocator_traits
{
typedef Alloc allocator_type;
typedef typename allocator_type::value_type
value_type;
typedef Alloc::pointer | value_type* pointer;
typedef Alloc::const_pointer
| pointer_traits<pointer>::rebind<const value_type>
const_pointer;
typedef Alloc::void_pointer
| pointer_traits<pointer>::rebind<void>
void_pointer;
typedef Alloc::const_void_pointer
| pointer_traits<pointer>::rebind<const void>
const_void_pointer;
typedef Alloc::difference_type
| pointer_traits<pointer>::difference_type
difference_type;
typedef Alloc::size_type
| make_unsigned<difference_type>::type
size_type;
typedef Alloc::propagate_on_container_copy_assignment
| false_type propagate_on_container_copy_assignment;
typedef Alloc::propagate_on_container_move_assignment
| false_type propagate_on_container_move_assignment;
typedef Alloc::propagate_on_container_swap
| false_type propagate_on_container_swap;
template <class T> using rebind_alloc = Alloc::rebind<U>::other | Alloc<T, Args...>;
template <class T> using rebind_traits = allocator_traits<rebind_alloc<T>>;
static pointer allocate(allocator_type& a, size_type n);
static pointer allocate(allocator_type& a, size_type n, const_void_pointer hint);
static void deallocate(allocator_type& a, pointer p, size_type n) noexcept;
template <class T, class... Args>
static void construct(allocator_type& a, T* p, Args&&... args);
template <class T>
static void destroy(allocator_type& a, T* p);
static size_type max_size(const allocator_type& a);
static allocator_type
select_on_container_copy_construction(const allocator_type& a);
};
template <>
class allocator<void>
{
public:
typedef void* pointer;
typedef const void* const_pointer;
typedef void value_type;
template <class _Up> struct rebind {typedef allocator<_Up> other;};
};
template <class T>
class allocator
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef typename add_lvalue_reference<T>::type reference;
typedef typename add_lvalue_reference<const T>::type const_reference;
typedef T value_type;
template <class U> struct rebind {typedef allocator<U> other;};
allocator() noexcept;
allocator(const allocator&) noexcept;
template <class U> allocator(const allocator<U>&) noexcept;
~allocator();
pointer address(reference x) const noexcept;
const_pointer address(const_reference x) const noexcept;
pointer allocate(size_type, allocator<void>::const_pointer hint = 0);
void deallocate(pointer p, size_type n) noexcept;
size_type max_size() const noexcept;
template<class U, class... Args>
void construct(U* p, Args&&... args);
template <class U>
void destroy(U* p);
};
template <class T, class U>
bool operator==(const allocator<T>&, const allocator<U>&) noexcept;
template <class T, class U>
bool operator!=(const allocator<T>&, const allocator<U>&) noexcept;
template <class OutputIterator, class T>
class raw_storage_iterator
: public iterator<output_iterator_tag,
T, // purposefully not C++03
ptrdiff_t, // purposefully not C++03
T*, // purposefully not C++03
raw_storage_iterator&> // purposefully not C++03
{
public:
explicit raw_storage_iterator(OutputIterator x);
raw_storage_iterator& operator*();
raw_storage_iterator& operator=(const T& element);
raw_storage_iterator& operator++();
raw_storage_iterator operator++(int);
};
template <class T> pair<T*,ptrdiff_t> get_temporary_buffer(ptrdiff_t n) noexcept;
template <class T> void return_temporary_buffer(T* p) noexcept;
template <class T> T* addressof(T& r) noexcept;
template <class InputIterator, class ForwardIterator>
ForwardIterator
uninitialized_copy(InputIterator first, InputIterator last, ForwardIterator result);
template <class InputIterator, class Size, class ForwardIterator>
ForwardIterator
uninitialized_copy_n(InputIterator first, Size n, ForwardIterator result);
template <class ForwardIterator, class T>
void uninitialized_fill(ForwardIterator first, ForwardIterator last, const T& x);
template <class ForwardIterator, class Size, class T>
ForwardIterator
uninitialized_fill_n(ForwardIterator first, Size n, const T& x);
template <class Y> struct auto_ptr_ref {};
template<class X>
class auto_ptr
{
public:
typedef X element_type;
explicit auto_ptr(X* p =0) throw();
auto_ptr(auto_ptr&) throw();
template<class Y> auto_ptr(auto_ptr<Y>&) throw();
auto_ptr& operator=(auto_ptr&) throw();
template<class Y> auto_ptr& operator=(auto_ptr<Y>&) throw();
auto_ptr& operator=(auto_ptr_ref<X> r) throw();
~auto_ptr() throw();
typename add_lvalue_reference<X>::type operator*() const throw();
X* operator->() const throw();
X* get() const throw();
X* release() throw();
void reset(X* p =0) throw();
auto_ptr(auto_ptr_ref<X>) throw();
template<class Y> operator auto_ptr_ref<Y>() throw();
template<class Y> operator auto_ptr<Y>() throw();
};
template <class T>
struct default_delete
{
constexpr default_delete() noexcept = default;
template <class U> default_delete(const default_delete<U>&) noexcept;
void operator()(T*) const noexcept;
};
template <class T>
struct default_delete<T[]>
{
constexpr default_delete() noexcept = default;
void operator()(T*) const noexcept;
template <class U> void operator()(U*) const = delete;
};
template <class T, class D = default_delete<T>>
class unique_ptr
{
public:
typedef see below pointer;
typedef T element_type;
typedef D deleter_type;
// constructors
constexpr unique_ptr() noexcept;
explicit unique_ptr(pointer p) noexcept;
unique_ptr(pointer p, see below d1) noexcept;
unique_ptr(pointer p, see below d2) noexcept;
unique_ptr(unique_ptr&& u) noexcept;
unique_ptr(nullptr_t) noexcept : unique_ptr() { }
template <class U, class E>
unique_ptr(unique_ptr<U, E>&& u) noexcept;
template <class U>
unique_ptr(auto_ptr<U>&& u) noexcept;
// destructor
~unique_ptr();
// assignment
unique_ptr& operator=(unique_ptr&& u) noexcept;
template <class U, class E> unique_ptr& operator=(unique_ptr<U, E>&& u) noexcept;
unique_ptr& operator=(nullptr_t) noexcept;
// observers
typename add_lvalue_reference<T>::type operator*() const;
pointer operator->() const noexcept;
pointer get() const noexcept;
deleter_type& get_deleter() noexcept;
const deleter_type& get_deleter() const noexcept;
explicit operator bool() const noexcept;
// modifiers
pointer release() noexcept;
void reset(pointer p = pointer()) noexcept;
void swap(unique_ptr& u) noexcept;
};
template <class T, class D>
class unique_ptr<T[], D>
{
public:
typedef implementation-defined pointer;
typedef T element_type;
typedef D deleter_type;
// constructors
constexpr unique_ptr() noexcept;
explicit unique_ptr(pointer p) noexcept;
unique_ptr(pointer p, see below d) noexcept;
unique_ptr(pointer p, see below d) noexcept;
unique_ptr(unique_ptr&& u) noexcept;
unique_ptr(nullptr_t) noexcept : unique_ptr() { }
// destructor
~unique_ptr();
// assignment
unique_ptr& operator=(unique_ptr&& u) noexcept;
unique_ptr& operator=(nullptr_t) noexcept;
// observers
T& operator[](size_t i) const;
pointer get() const noexcept;
deleter_type& get_deleter() noexcept;
const deleter_type& get_deleter() const noexcept;
explicit operator bool() const noexcept;
// modifiers
pointer release() noexcept;
void reset(pointer p = pointer()) noexcept;
void reset(nullptr_t) noexcept;
template <class U> void reset(U) = delete;
void swap(unique_ptr& u) noexcept;
};
template <class T, class D>
void swap(unique_ptr<T, D>& x, unique_ptr<T, D>& y) noexcept;
template <class T1, class D1, class T2, class D2>
bool operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
template <class T1, class D1, class T2, class D2>
bool operator!=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
template <class T1, class D1, class T2, class D2>
bool operator<(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
template <class T1, class D1, class T2, class D2>
bool operator<=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
template <class T1, class D1, class T2, class D2>
bool operator>(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
template <class T1, class D1, class T2, class D2>
bool operator>=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
template <class T, class D>
bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept;
template <class T, class D>
bool operator==(nullptr_t, const unique_ptr<T, D>& y) noexcept;
template <class T, class D>
bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
template <class T, class D>
bool operator!=(nullptr_t, const unique_ptr<T, D>& y) noexcept;
template <class T, class D>
bool operator<(const unique_ptr<T, D>& x, nullptr_t);
template <class T, class D>
bool operator<(nullptr_t, const unique_ptr<T, D>& y);
template <class T, class D>
bool operator<=(const unique_ptr<T, D>& x, nullptr_t);
template <class T, class D>
bool operator<=(nullptr_t, const unique_ptr<T, D>& y);
template <class T, class D>
bool operator>(const unique_ptr<T, D>& x, nullptr_t);
template <class T, class D>
bool operator>(nullptr_t, const unique_ptr<T, D>& y);
template <class T, class D>
bool operator>=(const unique_ptr<T, D>& x, nullptr_t);
template <class T, class D>
bool operator>=(nullptr_t, const unique_ptr<T, D>& y);
class bad_weak_ptr
: public std::exception
{
bad_weak_ptr() noexcept;
};
template<class T>
class shared_ptr
{
public:
typedef T element_type;
// constructors:
constexpr shared_ptr() noexcept;
template<class Y> explicit shared_ptr(Y* p);
template<class Y, class D> shared_ptr(Y* p, D d);
template<class Y, class D, class A> shared_ptr(Y* p, D d, A a);
template <class D> shared_ptr(nullptr_t p, D d);
template <class D, class A> shared_ptr(nullptr_t p, D d, A a);
template<class Y> shared_ptr(const shared_ptr<Y>& r, T *p) noexcept;
shared_ptr(const shared_ptr& r) noexcept;
template<class Y> shared_ptr(const shared_ptr<Y>& r) noexcept;
shared_ptr(shared_ptr&& r) noexcept;
template<class Y> shared_ptr(shared_ptr<Y>&& r) noexcept;
template<class Y> explicit shared_ptr(const weak_ptr<Y>& r);
template<class Y> shared_ptr(auto_ptr<Y>&& r);
template <class Y, class D> shared_ptr(unique_ptr<Y, D>&& r);
shared_ptr(nullptr_t) : shared_ptr() { }
// destructor:
~shared_ptr();
// assignment:
shared_ptr& operator=(const shared_ptr& r) noexcept;
template<class Y> shared_ptr& operator=(const shared_ptr<Y>& r) noexcept;
shared_ptr& operator=(shared_ptr&& r) noexcept;
template<class Y> shared_ptr& operator=(shared_ptr<Y>&& r);
template<class Y> shared_ptr& operator=(auto_ptr<Y>&& r);
template <class Y, class D> shared_ptr& operator=(unique_ptr<Y, D>&& r);
// modifiers:
void swap(shared_ptr& r) noexcept;
void reset() noexcept;
template<class Y> void reset(Y* p);
template<class Y, class D> void reset(Y* p, D d);
template<class Y, class D, class A> void reset(Y* p, D d, A a);
// observers:
T* get() const noexcept;
T& operator*() const noexcept;
T* operator->() const noexcept;
long use_count() const noexcept;
bool unique() const noexcept;
explicit operator bool() const noexcept;
template<class U> bool owner_before(shared_ptr<U> const& b) const;
template<class U> bool owner_before(weak_ptr<U> const& b) const;
};
// shared_ptr comparisons:
template<class T, class U>
bool operator==(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
template<class T, class U>
bool operator!=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
template<class T, class U>
bool operator<(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
template<class T, class U>
bool operator>(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
template<class T, class U>
bool operator<=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
template<class T, class U>
bool operator>=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
template <class T>
bool operator==(const shared_ptr<T>& x, nullptr_t) noexcept;
template <class T>
bool operator==(nullptr_t, const shared_ptr<T>& y) noexcept;
template <class T>
bool operator!=(const shared_ptr<T>& x, nullptr_t) noexcept;
template <class T>
bool operator!=(nullptr_t, const shared_ptr<T>& y) noexcept;
template <class T>
bool operator<(const shared_ptr<T>& x, nullptr_t) noexcept;
template <class T>
bool operator<(nullptr_t, const shared_ptr<T>& y) noexcept;
template <class T>
bool operator<=(const shared_ptr<T>& x, nullptr_t) noexcept;
template <class T>
bool operator<=(nullptr_t, const shared_ptr<T>& y) noexcept;
template <class T>
bool operator>(const shared_ptr<T>& x, nullptr_t) noexcept;
template <class T>
bool operator>(nullptr_t, const shared_ptr<T>& y) noexcept;
template <class T>
bool operator>=(const shared_ptr<T>& x, nullptr_t) noexcept;
template <class T>
bool operator>=(nullptr_t, const shared_ptr<T>& y) noexcept;
// shared_ptr specialized algorithms:
template<class T> void swap(shared_ptr<T>& a, shared_ptr<T>& b) noexcept;
// shared_ptr casts:
template<class T, class U>
shared_ptr<T> static_pointer_cast(shared_ptr<U> const& r) noexcept;
template<class T, class U>
shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const& r) noexcept;
template<class T, class U>
shared_ptr<T> const_pointer_cast(shared_ptr<U> const& r) noexcept;
// shared_ptr I/O:
template<class E, class T, class Y>
basic_ostream<E, T>& operator<< (basic_ostream<E, T>& os, shared_ptr<Y> const& p);
// shared_ptr get_deleter:
template<class D, class T> D* get_deleter(shared_ptr<T> const& p) noexcept;
template<class T, class... Args>
shared_ptr<T> make_shared(Args&&... args);
template<class T, class A, class... Args>
shared_ptr<T> allocate_shared(const A& a, Args&&... args);
template<class T>
class weak_ptr
{
public:
typedef T element_type;
// constructors
constexpr weak_ptr() noexcept;
template<class Y> weak_ptr(shared_ptr<Y> const& r) noexcept;
weak_ptr(weak_ptr const& r) noexcept;
template<class Y> weak_ptr(weak_ptr<Y> const& r) noexcept;
// destructor
~weak_ptr();
// assignment
weak_ptr& operator=(weak_ptr const& r) noexcept;
template<class Y> weak_ptr& operator=(weak_ptr<Y> const& r) noexcept;
template<class Y> weak_ptr& operator=(shared_ptr<Y> const& r) noexcept;
// modifiers
void swap(weak_ptr& r) noexcept;
void reset() noexcept;
// observers
long use_count() const noexcept;
bool expired() const noexcept;
shared_ptr<T> lock() const noexcept;
template<class U> bool owner_before(shared_ptr<U> const& b);
template<class U> bool owner_before(weak_ptr<U> const& b);
};
// weak_ptr specialized algorithms:
template<class T> void swap(weak_ptr<T>& a, weak_ptr<T>& b) noexcept;
// class owner_less:
template<class T> struct owner_less;
template<class T>
struct owner_less<shared_ptr<T>>
: binary_function<shared_ptr<T>, shared_ptr<T>, bool>
{
typedef bool result_type;
bool operator()(shared_ptr<T> const&, shared_ptr<T> const&) const;
bool operator()(shared_ptr<T> const&, weak_ptr<T> const&) const;
bool operator()(weak_ptr<T> const&, shared_ptr<T> const&) const;
};
template<class T>
struct owner_less<weak_ptr<T>>
: binary_function<weak_ptr<T>, weak_ptr<T>, bool>
{
typedef bool result_type;
bool operator()(weak_ptr<T> const&, weak_ptr<T> const&) const;
bool operator()(shared_ptr<T> const&, weak_ptr<T> const&) const;
bool operator()(weak_ptr<T> const&, shared_ptr<T> const&) const;
};
template<class T>
class enable_shared_from_this
{
protected:
constexpr enable_shared_from_this() noexcept;
enable_shared_from_this(enable_shared_from_this const&) noexcept;
enable_shared_from_this& operator=(enable_shared_from_this const&) noexcept;
~enable_shared_from_this();
public:
shared_ptr<T> shared_from_this();
shared_ptr<T const> shared_from_this() const;
};
template<class T>
bool atomic_is_lock_free(const shared_ptr<T>* p);
template<class T>
shared_ptr<T> atomic_load(const shared_ptr<T>* p);
template<class T>
shared_ptr<T> atomic_load_explicit(const shared_ptr<T>* p, memory_order mo);
template<class T>
void atomic_store(shared_ptr<T>* p, shared_ptr<T> r);
template<class T>
void atomic_store_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo);
template<class T>
shared_ptr<T> atomic_exchange(shared_ptr<T>* p, shared_ptr<T> r);
template<class T>
shared_ptr<T>
atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo);
template<class T>
bool
atomic_compare_exchange_weak(shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
template<class T>
bool
atomic_compare_exchange_strong( shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
template<class T>
bool
atomic_compare_exchange_weak_explicit(shared_ptr<T>* p, shared_ptr<T>* v,
shared_ptr<T> w, memory_order success,
memory_order failure);
template<class T>
bool
atomic_compare_exchange_strong_explicit(shared_ptr<T>* p, shared_ptr<T>* v,
shared_ptr<T> w, memory_order success,
memory_order failure);
// Hash support
template <class T> struct hash;
template <class T, class D> struct hash<unique_ptr<T, D> >;
template <class T> struct hash<shared_ptr<T> >;
// Pointer safety
enum class pointer_safety { relaxed, preferred, strict };
void declare_reachable(void *p);
template <class T> T *undeclare_reachable(T *p);
void declare_no_pointers(char *p, size_t n);
void undeclare_no_pointers(char *p, size_t n);
pointer_safety get_pointer_safety() noexcept;
void* align(size_t alignment, size_t size, void*& ptr, size_t& space);
} // std
*/
#include <__config>
#include <type_traits>
#include <typeinfo>
#include <cstddef>
#include <cstdint>
#include <new>
#include <utility>
#include <limits>
#include <iterator>
#include <__functional_base>
#if defined(_LIBCPP_NO_EXCEPTIONS)
#include <cassert>
#endif
#pragma GCC system_header
_LIBCPP_BEGIN_NAMESPACE_STD
// allocator_arg_t
struct _LIBCPP_VISIBLE allocator_arg_t { };
extern const allocator_arg_t allocator_arg;
// addressof
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp*
addressof(_Tp& __x) _NOEXCEPT
{
return (_Tp*)&(char&)__x;
}
#if defined(_LIBCPP_HAS_OBJC_ARC) && !defined(_LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF)
// Objective-C++ Automatic Reference Counting uses qualified pointers
// that require special addressof() signatures. When
// _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF is defined, the compiler
// itself is providing these definitions. Otherwise, we provide them.
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
__strong _Tp*
addressof(__strong _Tp& __x) _NOEXCEPT
{
return &__x;
}
#ifdef _LIBCPP_HAS_OBJC_ARC_WEAK
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
__weak _Tp*
addressof(__weak _Tp& __x) _NOEXCEPT
{
return &__x;
}
#endif
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
__autoreleasing _Tp*
addressof(__autoreleasing _Tp& __x) _NOEXCEPT
{
return &__x;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
__unsafe_unretained _Tp*
addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT
{
return &__x;
}
#endif
template <class _Tp> class allocator;
template <>
class _LIBCPP_VISIBLE allocator<void>
{
public:
typedef void* pointer;
typedef const void* const_pointer;
typedef void value_type;
template <class _Up> struct rebind {typedef allocator<_Up> other;};
};
// pointer_traits
template <class _Tp>
struct __has_element_type
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::element_type* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Ptr, bool = __has_element_type<_Ptr>::value>
struct __pointer_traits_element_type;
template <class _Ptr>
struct __pointer_traits_element_type<_Ptr, true>
{
typedef typename _Ptr::element_type type;
};
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <template <class, class...> class _Sp, class _Tp, class ..._Args>
struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true>
{
typedef typename _Sp<_Tp, _Args...>::element_type type;
};
template <template <class, class...> class _Sp, class _Tp, class ..._Args>
struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false>
{
typedef _Tp type;
};
#else // _LIBCPP_HAS_NO_VARIADICS
template <template <class> class _Sp, class _Tp>
struct __pointer_traits_element_type<_Sp<_Tp>, true>
{
typedef typename _Sp<_Tp>::element_type type;
};
template <template <class> class _Sp, class _Tp>
struct __pointer_traits_element_type<_Sp<_Tp>, false>
{
typedef _Tp type;
};
template <template <class, class> class _Sp, class _Tp, class _A0>
struct __pointer_traits_element_type<_Sp<_Tp, _A0>, true>
{
typedef typename _Sp<_Tp, _A0>::element_type type;
};
template <template <class, class> class _Sp, class _Tp, class _A0>
struct __pointer_traits_element_type<_Sp<_Tp, _A0>, false>
{
typedef _Tp type;
};
template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1>
struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, true>
{
typedef typename _Sp<_Tp, _A0, _A1>::element_type type;
};
template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1>
struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, false>
{
typedef _Tp type;
};
template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
class _A1, class _A2>
struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, true>
{
typedef typename _Sp<_Tp, _A0, _A1, _A2>::element_type type;
};
template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
class _A1, class _A2>
struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, false>
{
typedef _Tp type;
};
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp>
struct __has_difference_type
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::difference_type* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Ptr, bool = __has_difference_type<_Ptr>::value>
struct __pointer_traits_difference_type
{
typedef ptrdiff_t type;
};
template <class _Ptr>
struct __pointer_traits_difference_type<_Ptr, true>
{
typedef typename _Ptr::difference_type type;
};
template <class _Tp, class _Up>
struct __has_rebind
{
private:
struct __two {char _; char __;};
template <class _Xp> static __two __test(...);
template <class _Xp> static char __test(typename _Xp::template rebind<_Up>* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
struct __pointer_traits_rebind
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename _Tp::template rebind<_Up> type;
#else
typedef typename _Tp::template rebind<_Up>::other type;
#endif
};
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename _Sp<_Tp, _Args...>::template rebind<_Up> type;
#else
typedef typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type;
#endif
};
template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false>
{
typedef _Sp<_Up, _Args...> type;
};
#else // _LIBCPP_HAS_NO_VARIADICS
template <template <class> class _Sp, class _Tp, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp>, _Up, true>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename _Sp<_Tp>::template rebind<_Up> type;
#else
typedef typename _Sp<_Tp>::template rebind<_Up>::other type;
#endif
};
template <template <class> class _Sp, class _Tp, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp>, _Up, false>
{
typedef _Sp<_Up> type;
};
template <template <class, class> class _Sp, class _Tp, class _A0, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, true>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename _Sp<_Tp, _A0>::template rebind<_Up> type;
#else
typedef typename _Sp<_Tp, _A0>::template rebind<_Up>::other type;
#endif
};
template <template <class, class> class _Sp, class _Tp, class _A0, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, false>
{
typedef _Sp<_Up, _A0> type;
};
template <template <class, class, class> class _Sp, class _Tp, class _A0,
class _A1, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, true>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up> type;
#else
typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up>::other type;
#endif
};
template <template <class, class, class> class _Sp, class _Tp, class _A0,
class _A1, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, false>
{
typedef _Sp<_Up, _A0, _A1> type;
};
template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
class _A1, class _A2, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, true>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up> type;
#else
typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type;
#endif
};
template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
class _A1, class _A2, class _Up>
struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, false>
{
typedef _Sp<_Up, _A0, _A1, _A2> type;
};
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Ptr>
struct _LIBCPP_VISIBLE pointer_traits
{
typedef _Ptr pointer;
typedef typename __pointer_traits_element_type<pointer>::type element_type;
typedef typename __pointer_traits_difference_type<pointer>::type difference_type;
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
template <class _Up> using rebind = typename __pointer_traits_rebind<pointer, _Up>::type;
#else
template <class _Up> struct rebind
{typedef typename __pointer_traits_rebind<pointer, _Up>::type other;};
#endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
private:
struct __nat {};
public:
_LIBCPP_INLINE_VISIBILITY
static pointer pointer_to(typename conditional<is_void<element_type>::value,
__nat, element_type>::type& __r)
{return pointer::pointer_to(__r);}
};
template <class _Tp>
struct _LIBCPP_VISIBLE pointer_traits<_Tp*>
{
typedef _Tp* pointer;
typedef _Tp element_type;
typedef ptrdiff_t difference_type;
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
template <class _Up> using rebind = _Up*;
#else
template <class _Up> struct rebind {typedef _Up* other;};
#endif
private:
struct __nat {};
public:
_LIBCPP_INLINE_VISIBILITY
static pointer pointer_to(typename conditional<is_void<element_type>::value,
__nat, element_type>::type& __r) _NOEXCEPT
{return _STD::addressof(__r);}
};
// allocator_traits
namespace __has_pointer_type_imp
{
template <class _Up> static __two test(...);
template <class _Up> static char test(typename _Up::pointer* = 0);
}
template <class _Tp>
struct __has_pointer_type
: public integral_constant<bool, sizeof(__has_pointer_type_imp::test<_Tp>(0)) == 1>
{
};
namespace __pointer_type_imp
{
template <class _Tp, class _Dp, bool = __has_pointer_type<_Dp>::value>
struct __pointer_type
{
typedef typename _Dp::pointer type;
};
template <class _Tp, class _Dp>
struct __pointer_type<_Tp, _Dp, false>
{
typedef _Tp* type;
};
} // __pointer_type_imp
template <class _Tp, class _Dp>
struct __pointer_type
{
typedef typename __pointer_type_imp::__pointer_type<_Tp, typename remove_reference<_Dp>::type>::type type;
};
template <class _Tp>
struct __has_const_pointer
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::const_pointer* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Tp, class _Ptr, class _Alloc, bool = __has_const_pointer<_Alloc>::value>
struct __const_pointer
{
typedef typename _Alloc::const_pointer type;
};
template <class _Tp, class _Ptr, class _Alloc>
struct __const_pointer<_Tp, _Ptr, _Alloc, false>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename pointer_traits<_Ptr>::template rebind<const _Tp> type;
#else
typedef typename pointer_traits<_Ptr>::template rebind<const _Tp>::other type;
#endif
};
template <class _Tp>
struct __has_void_pointer
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::void_pointer* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Ptr, class _Alloc, bool = __has_void_pointer<_Alloc>::value>
struct __void_pointer
{
typedef typename _Alloc::void_pointer type;
};
template <class _Ptr, class _Alloc>
struct __void_pointer<_Ptr, _Alloc, false>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename pointer_traits<_Ptr>::template rebind<void> type;
#else
typedef typename pointer_traits<_Ptr>::template rebind<void>::other type;
#endif
};
template <class _Tp>
struct __has_const_void_pointer
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::const_void_pointer* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Ptr, class _Alloc, bool = __has_const_void_pointer<_Alloc>::value>
struct __const_void_pointer
{
typedef typename _Alloc::const_void_pointer type;
};
template <class _Ptr, class _Alloc>
struct __const_void_pointer<_Ptr, _Alloc, false>
{
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
typedef typename pointer_traits<_Ptr>::template rebind<const void> type;
#else
typedef typename pointer_traits<_Ptr>::template rebind<const void>::other type;
#endif
};
template <class _T>
inline _LIBCPP_INLINE_VISIBILITY
_T*
__to_raw_pointer(_T* __p) _NOEXCEPT
{
return __p;
}
template <class _Pointer>
inline _LIBCPP_INLINE_VISIBILITY
typename pointer_traits<_Pointer>::element_type*
__to_raw_pointer(_Pointer __p) _NOEXCEPT
{
return _STD::__to_raw_pointer(__p.operator->());
}
template <class _Tp>
struct __has_size_type
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::size_type* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Alloc, class _DiffType, bool = __has_size_type<_Alloc>::value>
struct __size_type
{
typedef typename make_unsigned<_DiffType>::type type;
};
template <class _Alloc, class _DiffType>
struct __size_type<_Alloc, _DiffType, true>
{
typedef typename _Alloc::size_type type;
};
template <class _Tp>
struct __has_propagate_on_container_copy_assignment
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::propagate_on_container_copy_assignment* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Alloc, bool = __has_propagate_on_container_copy_assignment<_Alloc>::value>
struct __propagate_on_container_copy_assignment
{
typedef false_type type;
};
template <class _Alloc>
struct __propagate_on_container_copy_assignment<_Alloc, true>
{
typedef typename _Alloc::propagate_on_container_copy_assignment type;
};
template <class _Tp>
struct __has_propagate_on_container_move_assignment
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::propagate_on_container_move_assignment* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Alloc, bool = __has_propagate_on_container_move_assignment<_Alloc>::value>
struct __propagate_on_container_move_assignment
{
typedef false_type type;
};
template <class _Alloc>
struct __propagate_on_container_move_assignment<_Alloc, true>
{
typedef typename _Alloc::propagate_on_container_move_assignment type;
};
template <class _Tp>
struct __has_propagate_on_container_swap
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::propagate_on_container_swap* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Alloc, bool = __has_propagate_on_container_swap<_Alloc>::value>
struct __propagate_on_container_swap
{
typedef false_type type;
};
template <class _Alloc>
struct __propagate_on_container_swap<_Alloc, true>
{
typedef typename _Alloc::propagate_on_container_swap type;
};
template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
struct __has_rebind_other
{
private:
struct __two {char _; char __;};
template <class _Xp> static __two __test(...);
template <class _Xp> static char __test(typename _Xp::template rebind<_Up>::other* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Tp, class _Up>
struct __has_rebind_other<_Tp, _Up, false>
{
static const bool value = false;
};
template <class _Tp, class _Up, bool = __has_rebind_other<_Tp, _Up>::value>
struct __allocator_traits_rebind
{
typedef typename _Tp::template rebind<_Up>::other type;
};
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, true>
{
typedef typename _Alloc<_Tp, _Args...>::template rebind<_Up>::other type;
};
template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, false>
{
typedef _Alloc<_Up, _Args...> type;
};
#else // _LIBCPP_HAS_NO_VARIADICS
template <template <class> class _Alloc, class _Tp, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, true>
{
typedef typename _Alloc<_Tp>::template rebind<_Up>::other type;
};
template <template <class> class _Alloc, class _Tp, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, false>
{
typedef _Alloc<_Up> type;
};
template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, true>
{
typedef typename _Alloc<_Tp, _A0>::template rebind<_Up>::other type;
};
template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, false>
{
typedef _Alloc<_Up, _A0> type;
};
template <template <class, class, class> class _Alloc, class _Tp, class _A0,
class _A1, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, true>
{
typedef typename _Alloc<_Tp, _A0, _A1>::template rebind<_Up>::other type;
};
template <template <class, class, class> class _Alloc, class _Tp, class _A0,
class _A1, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, false>
{
typedef _Alloc<_Up, _A0, _A1> type;
};
template <template <class, class, class, class> class _Alloc, class _Tp, class _A0,
class _A1, class _A2, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, true>
{
typedef typename _Alloc<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type;
};
template <template <class, class, class, class> class _Alloc, class _Tp, class _A0,
class _A1, class _A2, class _Up>
struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, false>
{
typedef _Alloc<_Up, _A0, _A1, _A2> type;
};
#endif // _LIBCPP_HAS_NO_VARIADICS
#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
template <class _Alloc, class _SizeType, class _ConstVoidPtr>
auto
__has_allocate_hint_test(_Alloc&& __a, _SizeType&& __sz, _ConstVoidPtr&& __p)
-> decltype(__a.allocate(__sz, __p), true_type());
template <class _Alloc, class _SizeType, class _ConstVoidPtr>
auto
__has_allocate_hint_test(const _Alloc& __a, _SizeType&& __sz, _ConstVoidPtr&& __p)
-> false_type;
template <class _Alloc, class _SizeType, class _ConstVoidPtr>
struct __has_allocate_hint
: integral_constant<bool,
is_same<
decltype(__has_allocate_hint_test(declval<_Alloc>(),
declval<_SizeType>(),
declval<_ConstVoidPtr>())),
true_type>::value>
{
};
#else // _LIBCPP_HAS_NO_ADVANCED_SFINAE
template <class _Alloc, class _SizeType, class _ConstVoidPtr>
struct __has_allocate_hint
: true_type
{
};
#endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
template <class _Alloc, class _Tp, class ..._Args>
decltype(_STD::declval<_Alloc>().construct(_STD::declval<_Tp*>(),
_STD::declval<_Args>()...),
true_type())
__has_construct_test(_Alloc&& __a, _Tp* __p, _Args&& ...__args);
template <class _Alloc, class _Pointer, class ..._Args>
false_type
__has_construct_test(const _Alloc& __a, _Pointer&& __p, _Args&& ...__args);
template <class _Alloc, class _Pointer, class ..._Args>
struct __has_construct
: integral_constant<bool,
is_same<
decltype(__has_construct_test(declval<_Alloc>(),
declval<_Pointer>(),
declval<_Args>()...)),
true_type>::value>
{
};
template <class _Alloc, class _Pointer>
auto
__has_destroy_test(_Alloc&& __a, _Pointer&& __p)
-> decltype(__a.destroy(__p), true_type());
template <class _Alloc, class _Pointer>
auto
__has_destroy_test(const _Alloc& __a, _Pointer&& __p)
-> false_type;
template <class _Alloc, class _Pointer>
struct __has_destroy
: integral_constant<bool,
is_same<
decltype(__has_destroy_test(declval<_Alloc>(),
declval<_Pointer>())),
true_type>::value>
{
};
template <class _Alloc>
auto
__has_max_size_test(_Alloc&& __a)
-> decltype(__a.max_size(), true_type());
template <class _Alloc>
auto
__has_max_size_test(const volatile _Alloc& __a)
-> false_type;
template <class _Alloc>
struct __has_max_size
: integral_constant<bool,
is_same<
decltype(__has_max_size_test(declval<_Alloc&>())),
true_type>::value>
{
};
template <class _Alloc>
auto
__has_select_on_container_copy_construction_test(_Alloc&& __a)
-> decltype(__a.select_on_container_copy_construction(), true_type());
template <class _Alloc>
auto
__has_select_on_container_copy_construction_test(const volatile _Alloc& __a)
-> false_type;
template <class _Alloc>
struct __has_select_on_container_copy_construction
: integral_constant<bool,
is_same<
decltype(__has_select_on_container_copy_construction_test(declval<_Alloc&>())),
true_type>::value>
{
};
#else // _LIBCPP_HAS_NO_ADVANCED_SFINAE
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class _Alloc, class _Pointer, class ..._Args>
struct __has_construct
: false_type
{
};
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Alloc, class _Pointer>
struct __has_destroy
: false_type
{
};
template <class _Alloc>
struct __has_max_size
: true_type
{
};
template <class _Alloc>
struct __has_select_on_container_copy_construction
: false_type
{
};
#endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
template <class _Alloc, class _Ptr, bool = __has_difference_type<_Alloc>::value>
struct __alloc_traits_difference_type
{
typedef typename pointer_traits<_Ptr>::difference_type type;
};
template <class _Alloc, class _Ptr>
struct __alloc_traits_difference_type<_Alloc, _Ptr, true>
{
typedef typename _Alloc::difference_type type;
};
template <class _Alloc>
struct _LIBCPP_VISIBLE allocator_traits
{
typedef _Alloc allocator_type;
typedef typename allocator_type::value_type value_type;
typedef typename __pointer_type<value_type, allocator_type>::type pointer;
typedef typename __const_pointer<value_type, pointer, allocator_type>::type const_pointer;
typedef typename __void_pointer<pointer, allocator_type>::type void_pointer;
typedef typename __const_void_pointer<pointer, allocator_type>::type const_void_pointer;
typedef typename __alloc_traits_difference_type<allocator_type, pointer>::type difference_type;
typedef typename __size_type<allocator_type, difference_type>::type size_type;
typedef typename __propagate_on_container_copy_assignment<allocator_type>::type
propagate_on_container_copy_assignment;
typedef typename __propagate_on_container_move_assignment<allocator_type>::type
propagate_on_container_move_assignment;
typedef typename __propagate_on_container_swap<allocator_type>::type
propagate_on_container_swap;
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
template <class _Tp> using rebind_alloc =
typename __allocator_traits_rebind<allocator_type, _Tp>::type;
template <class _Tp> using rebind_traits = allocator_traits<rebind_alloc<_Tp>>;
#else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
template <class _Tp> struct rebind_alloc
{typedef typename __allocator_traits_rebind<allocator_type, _Tp>::type other;};
template <class _Tp> struct rebind_traits
{typedef allocator_traits<typename rebind_alloc<_Tp>::other> other;};
#endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
_LIBCPP_INLINE_VISIBILITY
static pointer allocate(allocator_type& __a, size_type __n)
{return __a.allocate(__n);}
_LIBCPP_INLINE_VISIBILITY
static pointer allocate(allocator_type& __a, size_type __n, const_void_pointer __hint)
{return allocate(__a, __n, __hint,
__has_allocate_hint<allocator_type, size_type, const_void_pointer>());}
_LIBCPP_INLINE_VISIBILITY
static void deallocate(allocator_type& __a, pointer __p, size_type __n) _NOEXCEPT
{__a.deallocate(__p, __n);}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
static void construct(allocator_type& __a, _Tp* __p, _Args&&... __args)
{__construct(__has_construct<allocator_type, pointer, _Args...>(),
__a, __p, _STD::forward<_Args>(__args)...);}
#else // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static void construct(allocator_type& __a, _Tp* __p)
{
::new ((void*)__p) _Tp();
}
template <class _Tp, class _A0>
_LIBCPP_INLINE_VISIBILITY
static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0)
{
::new ((void*)__p) _Tp(__a0);
}
template <class _Tp, class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0,
const _A1& __a1)
{
::new ((void*)__p) _Tp(__a0, __a1);
}
template <class _Tp, class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0,
const _A1& __a1, const _A2& __a2)
{
::new ((void*)__p) _Tp(__a0, __a1, __a2);
}
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static void destroy(allocator_type& __a, _Tp* __p)
{__destroy(__has_destroy<allocator_type, _Tp*>(), __a, __p);}
_LIBCPP_INLINE_VISIBILITY
static size_type max_size(const allocator_type& __a)
{return __max_size(__has_max_size<const allocator_type>(), __a);}
_LIBCPP_INLINE_VISIBILITY
static allocator_type
select_on_container_copy_construction(const allocator_type& __a)
{return select_on_container_copy_construction(
__has_select_on_container_copy_construction<const allocator_type>(),
__a);}
private:
_LIBCPP_INLINE_VISIBILITY
static pointer allocate(allocator_type& __a, size_type __n,
const_void_pointer __hint, true_type)
{return __a.allocate(__n, __hint);}
_LIBCPP_INLINE_VISIBILITY
static pointer allocate(allocator_type& __a, size_type __n,
const_void_pointer __hint, false_type)
{return __a.allocate(__n);}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
static void __construct(true_type, allocator_type& __a, _Tp* __p, _Args&&... __args)
{__a.construct(__p, _STD::forward<_Args>(__args)...);}
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
static void __construct(false_type, allocator_type&, _Tp* __p, _Args&&... __args)
{
::new ((void*)__p) _Tp(_STD::forward<_Args>(__args)...);
}
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static void __destroy(true_type, allocator_type& __a, _Tp* __p)
{__a.destroy(__p);}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static void __destroy(false_type, allocator_type&, _Tp* __p)
{
__p->~_Tp();
}
_LIBCPP_INLINE_VISIBILITY
static size_type __max_size(true_type, const allocator_type& __a)
{return __a.max_size();}
_LIBCPP_INLINE_VISIBILITY
static size_type __max_size(false_type, const allocator_type&)
{return numeric_limits<size_type>::max();}
_LIBCPP_INLINE_VISIBILITY
static allocator_type
select_on_container_copy_construction(true_type, const allocator_type& __a)
{return __a.select_on_container_copy_construction();}
_LIBCPP_INLINE_VISIBILITY
static allocator_type
select_on_container_copy_construction(false_type, const allocator_type& __a)
{return __a;}
};
// uses_allocator
template <class _Tp>
struct __has_allocator_type
{
private:
struct __two {char _; char __;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::allocator_type* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Tp, class _Alloc, bool = __has_allocator_type<_Tp>::value>
struct __uses_allocator
: public integral_constant<bool,
is_convertible<_Alloc, typename _Tp::allocator_type>::value>
{
};
template <class _Tp, class _Alloc>
struct __uses_allocator<_Tp, _Alloc, false>
: public false_type
{
};
template <class _Tp, class _Alloc>
struct _LIBCPP_VISIBLE uses_allocator
: public __uses_allocator<_Tp, _Alloc>
{
};
#ifndef _LIBCPP_HAS_NO_VARIADICS
// uses-allocator construction
template <class _Tp, class _Alloc, class ..._Args>
struct __uses_alloc_ctor_imp
{
static const bool __ua = uses_allocator<_Tp, _Alloc>::value;
static const bool __ic =
is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value;
static const int value = __ua ? 2 - __ic : 0;
};
template <class _Tp, class _Alloc, class ..._Args>
struct __uses_alloc_ctor
: integral_constant<int, __uses_alloc_ctor_imp<_Tp, _Alloc, _Args...>::value>
{};
#endif // _LIBCPP_HAS_NO_VARIADICS
// allocator
template <class _Tp>
class _LIBCPP_VISIBLE allocator
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef _Tp* pointer;
typedef const _Tp* const_pointer;
typedef _Tp& reference;
typedef const _Tp& const_reference;
typedef _Tp value_type;
typedef true_type propagate_on_container_move_assignment;
template <class _Up> struct rebind {typedef allocator<_Up> other;};
_LIBCPP_INLINE_VISIBILITY allocator() _NOEXCEPT {}
template <class _Up> _LIBCPP_INLINE_VISIBILITY allocator(const allocator<_Up>&) _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY pointer address(reference __x) const _NOEXCEPT
{return _STD::addressof(__x);}
_LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT
{return _STD::addressof(__x);}
_LIBCPP_INLINE_VISIBILITY pointer allocate(size_type __n, allocator<void>::const_pointer = 0)
{return static_cast<pointer>(::operator new(__n * sizeof(_Tp)));}
_LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type) _NOEXCEPT
{::operator delete((void*)__p);}
_LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT
{return size_type(~0) / sizeof(_Tp);}
#if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
template <class _Up, class... _Args>
_LIBCPP_INLINE_VISIBILITY
void
construct(_Up* __p, _Args&&... __args)
{
::new((void*)__p) _Up(_STD::forward<_Args>(__args)...);
}
#else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p)
{
::new((void*)__p) _Tp();
}
# if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_convertible<_A0, __rv<_A0> >::value,
void
>::type
construct(pointer __p, _A0& __a0)
{
::new((void*)__p) _Tp(__a0);
}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_convertible<_A0, __rv<_A0> >::value,
void
>::type
construct(pointer __p, const _A0& __a0)
{
::new((void*)__p) _Tp(__a0);
}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_convertible<_A0, __rv<_A0> >::value,
void
>::type
construct(pointer __p, _A0 __a0)
{
::new((void*)__p) _Tp(_STD::move(__a0));
}
# endif // defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p, _A0& __a0, _A1& __a1)
{
::new((void*)__p) _Tp(__a0, __a1);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p, const _A0& __a0, _A1& __a1)
{
::new((void*)__p) _Tp(__a0, __a1);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p, _A0& __a0, const _A1& __a1)
{
::new((void*)__p) _Tp(__a0, __a1);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p, const _A0& __a0, const _A1& __a1)
{
::new((void*)__p) _Tp(__a0, __a1);
}
#endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
_LIBCPP_INLINE_VISIBILITY void destroy(pointer __p) {__p->~_Tp();}
};
template <class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
bool operator==(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return true;}
template <class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
bool operator!=(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return false;}
template <class _OutputIterator, class _Tp>
class _LIBCPP_VISIBLE raw_storage_iterator
: public iterator<output_iterator_tag,
_Tp, // purposefully not C++03
ptrdiff_t, // purposefully not C++03
_Tp*, // purposefully not C++03
raw_storage_iterator<_OutputIterator, _Tp>&> // purposefully not C++03
{
private:
_OutputIterator __x_;
public:
_LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}
_LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;}
_LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element)
{::new(&*__x_) _Tp(__element); return *this;}
_LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;}
_LIBCPP_INLINE_VISIBILITY raw_storage_iterator operator++(int)
{raw_storage_iterator __t(*this); ++__x_; return __t;}
};
template <class _Tp>
pair<_Tp*, ptrdiff_t>
get_temporary_buffer(ptrdiff_t __n) _NOEXCEPT
{
pair<_Tp*, ptrdiff_t> __r(0, 0);
const ptrdiff_t __m = (~ptrdiff_t(0) ^
ptrdiff_t(ptrdiff_t(1) << (sizeof(ptrdiff_t) * __CHAR_BIT__ - 1)))
/ sizeof(_Tp);
if (__n > __m)
__n = __m;
while (__n > 0)
{
__r.first = static_cast<_Tp*>(::operator new(__n * sizeof(_Tp), nothrow));
if (__r.first)
{
__r.second = __n;
break;
}
__n /= 2;
}
return __r;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void return_temporary_buffer(_Tp* __p) _NOEXCEPT {::operator delete(__p);}
template <class _Tp>
struct auto_ptr_ref
{
_Tp* __ptr_;
};
template<class _Tp>
class _LIBCPP_VISIBLE auto_ptr
{
private:
_Tp* __ptr_;
public:
typedef _Tp element_type;
_LIBCPP_INLINE_VISIBILITY explicit auto_ptr(_Tp* __p = 0) throw() : __ptr_(__p) {}
_LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr& __p) throw() : __ptr_(__p.release()) {}
template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr<_Up>& __p) throw()
: __ptr_(__p.release()) {}
_LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr& __p) throw()
{reset(__p.release()); return *this;}
template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr<_Up>& __p) throw()
{reset(__p.release()); return *this;}
_LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr_ref<_Tp> __p) throw()
{reset(__p.__ptr_); return *this;}
_LIBCPP_INLINE_VISIBILITY ~auto_ptr() throw() {delete __ptr_;}
_LIBCPP_INLINE_VISIBILITY _Tp& operator*() const throw()
{return *__ptr_;}
_LIBCPP_INLINE_VISIBILITY _Tp* operator->() const throw() {return __ptr_;}
_LIBCPP_INLINE_VISIBILITY _Tp* get() const throw() {return __ptr_;}
_LIBCPP_INLINE_VISIBILITY _Tp* release() throw()
{
_Tp* __t = __ptr_;
__ptr_ = 0;
return __t;
}
_LIBCPP_INLINE_VISIBILITY void reset(_Tp* __p = 0) throw()
{
if (__ptr_ != __p)
delete __ptr_;
__ptr_ = __p;
}
_LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr_ref<_Tp> __p) throw() : __ptr_(__p.__ptr_) {}
template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr_ref<_Up>() throw()
{auto_ptr_ref<_Up> __t; __t.__ptr_ = release(); return __t;}
template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr<_Up>() throw()
{return auto_ptr<_Up>(release());}
};
template <>
class _LIBCPP_VISIBLE auto_ptr<void>
{
public:
typedef void element_type;
};
template <class _T1, class _T2, bool = is_same<typename remove_cv<_T1>::type,
typename remove_cv<_T2>::type>::value,
bool = is_empty<_T1>::value,
bool = is_empty<_T2>::value>
struct __libcpp_compressed_pair_switch;
template <class _T1, class _T2, bool IsSame>
struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, false, false> {enum {value = 0};};
template <class _T1, class _T2, bool IsSame>
struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, true, false> {enum {value = 1};};
template <class _T1, class _T2, bool IsSame>
struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, false, true> {enum {value = 2};};
template <class _T1, class _T2>
struct __libcpp_compressed_pair_switch<_T1, _T2, false, true, true> {enum {value = 3};};
template <class _T1, class _T2>
struct __libcpp_compressed_pair_switch<_T1, _T2, true, true, true> {enum {value = 1};};
template <class _T1, class _T2, unsigned = __libcpp_compressed_pair_switch<_T1, _T2>::value>
class __libcpp_compressed_pair_imp;
template <class _T1, class _T2>
class __libcpp_compressed_pair_imp<_T1, _T2, 0>
{
private:
_T1 __first_;
_T2 __second_;
public:
typedef _T1 _T1_param;
typedef _T2 _T2_param;
typedef typename remove_reference<_T1>::type& _T1_reference;
typedef typename remove_reference<_T2>::type& _T2_reference;
typedef const typename remove_reference<_T1>::type& _T1_const_reference;
typedef const typename remove_reference<_T2>::type& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1, int = 0)
: __first_(_STD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2, int* = 0)
: __second_(_STD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: __first_(_STD::forward<_T1_param>(__t1)), __second_(_STD::forward<_T2_param>(__t2)) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)
: __first_(_STD::forward<_T1>(__p.first())), __second_(_STD::forward<_T2>(__p.second())) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return __first_;}
_LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return __first_;}
_LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return __second_;}
_LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return __second_;}
_LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
_NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T1>::value)
{
using _STD::swap;
swap(__first_, __x.__first_);
swap(__second_, __x.__second_);
}
};
template <class _T1, class _T2>
class __libcpp_compressed_pair_imp<_T1, _T2, 1>
: private _T1
{
private:
_T2 __second_;
public:
typedef _T1 _T1_param;
typedef _T2 _T2_param;
typedef _T1& _T1_reference;
typedef typename remove_reference<_T2>::type& _T2_reference;
typedef const _T1& _T1_const_reference;
typedef const typename remove_reference<_T2>::type& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1, int = 0)
: _T1(_STD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2, int* = 0)
: __second_(_STD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: _T1(_STD::forward<_T1_param>(__t1)), __second_(_STD::forward<_T2_param>(__t2)) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)
: _T1(_STD::move(__p.first())), __second_(_STD::forward<_T2>(__p.second())) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return __second_;}
_LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return __second_;}
_LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
_NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T1>::value)
{
using _STD::swap;
swap(__second_, __x.__second_);
}
};
template <class _T1, class _T2>
class __libcpp_compressed_pair_imp<_T1, _T2, 2>
: private _T2
{
private:
_T1 __first_;
public:
typedef _T1 _T1_param;
typedef _T2 _T2_param;
typedef typename remove_reference<_T1>::type& _T1_reference;
typedef _T2& _T2_reference;
typedef const typename remove_reference<_T1>::type& _T1_const_reference;
typedef const _T2& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
: __first_(_STD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: _T2(_STD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)
: _T2(_STD::forward<_T2_param>(__t2)), __first_(_STD::forward<_T1_param>(__t1)) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
__libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
: _T2(_STD::forward<_T2>(__p.second())), __first_(_STD::move(__p.first())) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return __first_;}
_LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return __first_;}
_LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
_NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T1>::value)
{
using _STD::swap;
swap(__first_, __x.__first_);
}
};
template <class _T1, class _T2>
class __libcpp_compressed_pair_imp<_T1, _T2, 3>
: private _T1,
private _T2
{
public:
typedef _T1 _T1_param;
typedef _T2 _T2_param;
typedef _T1& _T1_reference;
typedef _T2& _T2_reference;
typedef const _T1& _T1_const_reference;
typedef const _T2& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
: _T1(_STD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: _T2(_STD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: _T1(_STD::forward<_T1_param>(__t1)), _T2(_STD::forward<_T2_param>(__t2)) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)
: _T1(_STD::move(__p.first())), _T2(_STD::move(__p.second())) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return *this;}
_LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
_NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T1>::value)
{
}
};
template <class _T1, class _T2>
class __compressed_pair
: private __libcpp_compressed_pair_imp<_T1, _T2>
{
typedef __libcpp_compressed_pair_imp<_T1, _T2> base;
public:
typedef typename base::_T1_param _T1_param;
typedef typename base::_T2_param _T2_param;
typedef typename base::_T1_reference _T1_reference;
typedef typename base::_T2_reference _T2_reference;
typedef typename base::_T1_const_reference _T1_const_reference;
typedef typename base::_T2_const_reference _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __compressed_pair() {}
_LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T1_param __t1, int = 0)
: base(_STD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T2_param __t2, int* = 0)
: base(_STD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __compressed_pair(_T1_param __t1, _T2_param __t2)
: base(_STD::forward<_T1_param>(__t1), _STD::forward<_T2_param>(__t2)) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
__compressed_pair(__compressed_pair&& __p)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)
: base(_STD::move(__p)) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return base::first();}
_LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return base::first();}
_LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return base::second();}
_LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return base::second();}
_LIBCPP_INLINE_VISIBILITY void swap(__compressed_pair& __x)
_NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T1>::value)
{base::swap(__x);}
};
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(__compressed_pair<_T1, _T2>& __x, __compressed_pair<_T1, _T2>& __y)
_NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T1>::value)
{__x.swap(__y);}
template <class _Tp>
struct _LIBCPP_VISIBLE default_delete
{
_LIBCPP_INLINE_VISIBILITY default_delete() _NOEXCEPT {}
template <class _Up>
_LIBCPP_INLINE_VISIBILITY default_delete(const default_delete<_Up>&,
typename enable_if<is_convertible<_Up*, _Tp*>::value>::type* = 0) _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY void operator() (_Tp* __ptr) const _NOEXCEPT
{
static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
delete __ptr;
}
};
template <class _Tp>
struct _LIBCPP_VISIBLE default_delete<_Tp[]>
{
_LIBCPP_INLINE_VISIBILITY void operator() (_Tp* __ptr) const _NOEXCEPT
{
static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
delete [] __ptr;
}
private:
template <class _Up> void operator() (_Up*) const;
};
template <class _Tp, class _Dp = default_delete<_Tp> >
class _LIBCPP_VISIBLE unique_ptr
{
public:
typedef _Tp element_type;
typedef _Dp deleter_type;
typedef typename __pointer_type<_Tp, deleter_type>::type pointer;
private:
__compressed_pair<pointer, deleter_type> __ptr_;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
unique_ptr(const unique_ptr&);
unique_ptr& operator=(const unique_ptr&);
template <class _Up, class _Ep>
unique_ptr(const unique_ptr<_Up, _Ep>&);
template <class _Up, class _Ep>
unique_ptr& operator=(const unique_ptr<_Up, _Ep>&);
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
unique_ptr(unique_ptr&);
template <class _Up, class _Ep>
unique_ptr(unique_ptr<_Up, _Ep>&);
unique_ptr& operator=(unique_ptr&);
template <class _Up, class _Ep>
unique_ptr& operator=(unique_ptr<_Up, _Ep>&);
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct __nat {int __for_bool_;};
typedef typename remove_reference<deleter_type>::type& _Dp_reference;
typedef const typename remove_reference<deleter_type>::type& _Dp_const_reference;
public:
_LIBCPP_INLINE_VISIBILITY unique_ptr() _NOEXCEPT
: __ptr_(pointer())
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t) _NOEXCEPT
: __ptr_(pointer())
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
_LIBCPP_INLINE_VISIBILITY explicit unique_ptr(pointer __p) _NOEXCEPT
: __ptr_(_STD::move(__p))
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, typename conditional<
is_reference<deleter_type>::value,
deleter_type,
typename add_lvalue_reference<const deleter_type>::type>::type __d)
_NOEXCEPT
: __ptr_(__p, __d) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, typename remove_reference<deleter_type>::type&& __d)
_NOEXCEPT
: __ptr_(__p, _STD::move(__d))
{
static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(unique_ptr&& __u) _NOEXCEPT
: __ptr_(__u.release(), _STD::forward<deleter_type>(__u.get_deleter())) {}
template <class _Up, class _Ep>
_LIBCPP_INLINE_VISIBILITY
unique_ptr(unique_ptr<_Up, _Ep>&& __u,
typename enable_if
<
!is_array<_Up>::value &&
is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
is_convertible<_Ep, deleter_type>::value &&
(
!is_reference<deleter_type>::value ||
is_same<deleter_type, _Ep>::value
),
__nat
>::type = __nat()) _NOEXCEPT
: __ptr_(__u.release(), _STD::forward<_Ep>(__u.get_deleter())) {}
template <class _Up>
_LIBCPP_INLINE_VISIBILITY unique_ptr(auto_ptr<_Up>&& __p,
typename enable_if<
is_convertible<_Up*, _Tp*>::value &&
is_same<_Dp, default_delete<_Tp> >::value,
__nat
>::type = __nat()) _NOEXCEPT
: __ptr_(__p.release())
{
}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
{
reset(__u.release());
__ptr_.second() = _STD::forward<deleter_type>(__u.get_deleter());
return *this;
}
template <class _Up, class _Ep>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_array<_Up>::value,
unique_ptr&
>::type
operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT
{
reset(__u.release());
__ptr_.second() = _STD::forward<_Ep>(__u.get_deleter());
return *this;
}
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY operator __rv<unique_ptr>()
{
return __rv<unique_ptr>(*this);
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(__rv<unique_ptr> __u)
: __ptr_(__u->release(), _STD::forward<deleter_type>(__u->get_deleter())) {}
template <class _Up, class _Ep>
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr<_Up, _Ep> __u)
{
reset(__u.release());
__ptr_.second() = _STD::forward<deleter_type>(__u.get_deleter());
return *this;
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
: __ptr_(_STD::move(__p), _STD::move(__d)) {}
template <class _Up>
_LIBCPP_INLINE_VISIBILITY
typename enable_if<
is_convertible<_Up*, _Tp*>::value &&
is_same<_Dp, default_delete<_Tp> >::value,
unique_ptr&
>::type
operator=(auto_ptr<_Up> __p)
{reset(__p.release()); return *this;}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY ~unique_ptr() {reset();}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(nullptr_t) _NOEXCEPT
{
reset();
return *this;
}
_LIBCPP_INLINE_VISIBILITY typename add_lvalue_reference<_Tp>::type operator*() const
{return *__ptr_.first();}
_LIBCPP_INLINE_VISIBILITY pointer operator->() const _NOEXCEPT {return __ptr_.first();}
_LIBCPP_INLINE_VISIBILITY pointer get() const _NOEXCEPT {return __ptr_.first();}
_LIBCPP_INLINE_VISIBILITY _Dp_reference get_deleter() _NOEXCEPT
{return __ptr_.second();}
_LIBCPP_INLINE_VISIBILITY _Dp_const_reference get_deleter() const _NOEXCEPT
{return __ptr_.second();}
_LIBCPP_INLINE_VISIBILITY operator int __nat::*() const
_NOEXCEPT
{return __ptr_.first() ? &__nat::__for_bool_ : 0;}
_LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
{
pointer __t = __ptr_.first();
__ptr_.first() = pointer();
return __t;
}
_LIBCPP_INLINE_VISIBILITY void reset(pointer __p = pointer()) _NOEXCEPT
{
pointer __tmp = __ptr_.first();
__ptr_.first() = __p;
if (__tmp)
__ptr_.second()(__tmp);
}
_LIBCPP_INLINE_VISIBILITY void swap(unique_ptr& __u) _NOEXCEPT
{__ptr_.swap(__u.__ptr_);}
};
template <class _Tp, class _Dp>
class _LIBCPP_VISIBLE unique_ptr<_Tp[], _Dp>
{
public:
typedef _Tp element_type;
typedef _Dp deleter_type;
typedef typename __pointer_type<_Tp, deleter_type>::type pointer;
private:
__compressed_pair<pointer, deleter_type> __ptr_;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
unique_ptr(const unique_ptr&);
unique_ptr& operator=(const unique_ptr&);
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
unique_ptr(unique_ptr&);
template <class _Up>
unique_ptr(unique_ptr<_Up>&);
unique_ptr& operator=(unique_ptr&);
template <class _Up>
unique_ptr& operator=(unique_ptr<_Up>&);
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct __nat {int __for_bool_;};
typedef typename remove_reference<deleter_type>::type& _Dp_reference;
typedef const typename remove_reference<deleter_type>::type& _Dp_const_reference;
public:
_LIBCPP_INLINE_VISIBILITY unique_ptr() _NOEXCEPT
: __ptr_(pointer())
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t) _NOEXCEPT
: __ptr_(pointer())
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _P,
class = typename enable_if<is_same<_P, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY explicit unique_ptr(_P __p) _NOEXCEPT
: __ptr_(__p)
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
template <class _P,
class = typename enable_if<is_same<_P, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY unique_ptr(_P __p, typename conditional<
is_reference<deleter_type>::value,
deleter_type,
typename add_lvalue_reference<const deleter_type>::type>::type __d)
_NOEXCEPT
: __ptr_(__p, __d) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, typename conditional<
is_reference<deleter_type>::value,
deleter_type,
typename add_lvalue_reference<const deleter_type>::type>::type __d)
_NOEXCEPT
: __ptr_(pointer(), __d) {}
template <class _P,
class = typename enable_if<is_same<_P, pointer>::value ||
is_same<_P, nullptr_t>::value>::type
>
_LIBCPP_INLINE_VISIBILITY unique_ptr(_P __p, typename remove_reference<deleter_type>::type&& __d)
_NOEXCEPT
: __ptr_(__p, _STD::move(__d))
{
static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, typename remove_reference<deleter_type>::type&& __d)
_NOEXCEPT
: __ptr_(pointer(), _STD::move(__d))
{
static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(unique_ptr&& __u) _NOEXCEPT
: __ptr_(__u.release(), _STD::forward<deleter_type>(__u.get_deleter())) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
{
reset(__u.release());
__ptr_.second() = _STD::forward<deleter_type>(__u.get_deleter());
return *this;
}
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY explicit unique_ptr(pointer __p)
: __ptr_(__p)
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
: __ptr_(__p, _STD::forward<deleter_type>(__d)) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, deleter_type __d)
: __ptr_(pointer(), _STD::forward<deleter_type>(__d)) {}
_LIBCPP_INLINE_VISIBILITY operator __rv<unique_ptr>()
{
return __rv<unique_ptr>(*this);
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(__rv<unique_ptr> __u)
: __ptr_(__u->release(), _STD::forward<deleter_type>(__u->get_deleter())) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(__rv<unique_ptr> __u)
{
reset(__u->release());
__ptr_.second() = _STD::forward<deleter_type>(__u->get_deleter());
return *this;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY ~unique_ptr() {reset();}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(nullptr_t) _NOEXCEPT
{
reset();
return *this;
}
_LIBCPP_INLINE_VISIBILITY typename add_lvalue_reference<_Tp>::type operator[](size_t __i) const
{return __ptr_.first()[__i];}
_LIBCPP_INLINE_VISIBILITY pointer get() const _NOEXCEPT {return __ptr_.first();}
_LIBCPP_INLINE_VISIBILITY _Dp_reference get_deleter() _NOEXCEPT
{return __ptr_.second();}
_LIBCPP_INLINE_VISIBILITY _Dp_const_reference get_deleter() const _NOEXCEPT
{return __ptr_.second();}
_LIBCPP_INLINE_VISIBILITY operator int __nat::*() const _NOEXCEPT
{return __ptr_.first() ? &__nat::__for_bool_ : 0;}
_LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
{
pointer __t = __ptr_.first();
__ptr_.first() = pointer();
return __t;
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _P,
class = typename enable_if<is_same<_P, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY void reset(_P __p) _NOEXCEPT
{
pointer __tmp = __ptr_.first();
__ptr_.first() = __p;
if (__tmp)
__ptr_.second()(__tmp);
}
_LIBCPP_INLINE_VISIBILITY void reset(nullptr_t) _NOEXCEPT
{
pointer __tmp = __ptr_.first();
__ptr_.first() = nullptr;
if (__tmp)
__ptr_.second()(__tmp);
}
_LIBCPP_INLINE_VISIBILITY void reset() _NOEXCEPT
{
pointer __tmp = __ptr_.first();
__ptr_.first() = nullptr;
if (__tmp)
__ptr_.second()(__tmp);
}
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY void reset(pointer __p = pointer())
{
pointer __tmp = __ptr_.first();
__ptr_.first() = __p;
if (__tmp)
__ptr_.second()(__tmp);
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY void swap(unique_ptr& __u) {__ptr_.swap(__u.__ptr_);}
private:
#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Up>
explicit unique_ptr(_Up);
template <class _Up>
unique_ptr(_Up __u,
typename conditional<
is_reference<deleter_type>::value,
deleter_type,
typename add_lvalue_reference<const deleter_type>::type>::type,
typename enable_if
<
is_convertible<_Up, pointer>::value,
__nat
>::type = __nat());
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
};
template <class _Tp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(unique_ptr<_Tp, _Dp>& __x, unique_ptr<_Tp, _Dp>& __y) _NOEXCEPT {__x.swap(__y);}
template <class _T1, class _D1, class _T2, class _D2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __x.get() == __y.get();}
template <class _T1, class _D1, class _T2, class _D2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x == __y);}
template <class _T1, class _D1, class _T2, class _D2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __x.get() < __y.get();}
template <class _T1, class _D1, class _T2, class _D2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __y < __x;}
template <class _T1, class _D1, class _T2, class _D2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__y < __x);}
template <class _T1, class _D1, class _T2, class _D2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x < __y);}
template <class _Tp> struct hash;
template<class _Tp>
struct _LIBCPP_VISIBLE hash<_Tp*>
: public unary_function<_Tp*, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp* __v) const _NOEXCEPT
{
const size_t* const __p = reinterpret_cast<const size_t*>(&__v);
return *__p;
}
};
template <class _Tp, class _Dp>
struct _LIBCPP_VISIBLE hash<unique_ptr<_Tp, _Dp> >
{
typedef unique_ptr<_Tp, _Dp> argument_type;
typedef size_t result_type;
_LIBCPP_INLINE_VISIBILITY
result_type operator()(const argument_type& __ptr) const _NOEXCEPT
{
typedef typename argument_type::pointer pointer;
return hash<pointer>()(__ptr.get());
}
};
struct __destruct_n
{
private:
size_t size;
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void __process(_Tp* __p, false_type) _NOEXCEPT
{for (size_t __i = 0; __i < size; ++__i, ++__p) __p->~_Tp();}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void __process(_Tp*, true_type) _NOEXCEPT
{}
_LIBCPP_INLINE_VISIBILITY void __incr(false_type) _NOEXCEPT
{++size;}
_LIBCPP_INLINE_VISIBILITY void __incr(true_type) _NOEXCEPT
{}
_LIBCPP_INLINE_VISIBILITY void __set(size_t __s, false_type) _NOEXCEPT
{size = __s;}
_LIBCPP_INLINE_VISIBILITY void __set(size_t, true_type) _NOEXCEPT
{}
public:
_LIBCPP_INLINE_VISIBILITY explicit __destruct_n(size_t __s) _NOEXCEPT
: size(__s) {}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void __incr(_Tp*) _NOEXCEPT
{__incr(integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void __set(size_t __s, _Tp*) _NOEXCEPT
{__set(__s, integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __p) _NOEXCEPT
{__process(__p, integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
};
template <class _Alloc>
class __allocator_destructor
{
typedef allocator_traits<_Alloc> __alloc_traits;
public:
typedef typename __alloc_traits::pointer pointer;
typedef typename __alloc_traits::size_type size_type;
private:
_Alloc& __alloc_;
size_type __s_;
public:
_LIBCPP_INLINE_VISIBILITY __allocator_destructor(_Alloc& __a, size_type __s)
_NOEXCEPT
: __alloc_(__a), __s_(__s) {}
_LIBCPP_INLINE_VISIBILITY
void operator()(pointer __p) _NOEXCEPT
{__alloc_traits::deallocate(__alloc_, __p, __s_);}
};
template <class _InputIterator, class _ForwardIterator>
_ForwardIterator
uninitialized_copy(_InputIterator __f, _InputIterator __l, _ForwardIterator __r)
{
__destruct_n __d(0);
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
unique_ptr<value_type, __destruct_n&> __h(&*__r, __d);
for (; __f != __l; ++__f, ++__r, __d.__incr((value_type*)0))
::new(&*__r) value_type(*__f);
__h.release();
return __r;
}
template <class _InputIterator, class _Size, class _ForwardIterator>
_ForwardIterator
uninitialized_copy_n(_InputIterator __f, _Size __n, _ForwardIterator __r)
{
__destruct_n __d(0);
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
unique_ptr<value_type, __destruct_n&> __h(&*__r, __d);
for (; __n > 0; ++__f, ++__r, __d.__incr((value_type*)0), --__n)
::new(&*__r) value_type(*__f);
__h.release();
return __r;
}
template <class _ForwardIterator, class _Tp>
void
uninitialized_fill(_ForwardIterator __f, _ForwardIterator __l, const _Tp& __x)
{
__destruct_n __d(0);
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
unique_ptr<value_type, __destruct_n&> __h(&*__f, __d);
for (; __f != __l; ++__f, __d.__incr((value_type*)0))
::new(&*__f) value_type(__x);
__h.release();
}
template <class _ForwardIterator, class _Size, class _Tp>
_ForwardIterator
uninitialized_fill_n(_ForwardIterator __f, _Size __n, const _Tp& __x)
{
__destruct_n __d(0);
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
unique_ptr<value_type, __destruct_n&> __h(&*__f, __d);
for (; __n > 0; ++__f, --__n, __d.__incr((value_type*)0))
::new(&*__f) value_type(__x);
__h.release();
return __f;
}
class _LIBCPP_EXCEPTION_ABI bad_weak_ptr
: public std::exception
{
public:
virtual ~bad_weak_ptr() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
template<class _Tp> class weak_ptr;
class __shared_count
{
__shared_count(const __shared_count&);
__shared_count& operator=(const __shared_count&);
protected:
long __shared_owners_;
virtual ~__shared_count();
private:
virtual void __on_zero_shared() _NOEXCEPT = 0;
public:
_LIBCPP_INLINE_VISIBILITY
explicit __shared_count(long __refs = 0) _NOEXCEPT
: __shared_owners_(__refs) {}
void __add_shared() _NOEXCEPT;
bool __release_shared() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
long use_count() const _NOEXCEPT {return __shared_owners_ + 1;}
};
class __shared_weak_count
: private __shared_count
{
long __shared_weak_owners_;
public:
_LIBCPP_INLINE_VISIBILITY
explicit __shared_weak_count(long __refs = 0) _NOEXCEPT
: __shared_count(__refs),
__shared_weak_owners_(__refs) {}
protected:
virtual ~__shared_weak_count();
public:
void __add_shared() _NOEXCEPT;
void __add_weak() _NOEXCEPT;
void __release_shared() _NOEXCEPT;
void __release_weak() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
long use_count() const _NOEXCEPT {return __shared_count::use_count();}
__shared_weak_count* lock() _NOEXCEPT;
#ifndef _LIBCPP_NO_RTTI
virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
#endif
private:
virtual void __on_zero_shared_weak() _NOEXCEPT = 0;
};
template <class _Tp, class _Dp, class _Alloc>
class __shared_ptr_pointer
: public __shared_weak_count
{
__compressed_pair<__compressed_pair<_Tp, _Dp>, _Alloc> __data_;
public:
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_pointer(_Tp __p, _Dp __d, _Alloc __a)
: __data_(__compressed_pair<_Tp, _Dp>(__p, _STD::move(__d)), _STD::move(__a)) {}
#ifndef _LIBCPP_NO_RTTI
virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
#endif
private:
virtual void __on_zero_shared() _NOEXCEPT;
virtual void __on_zero_shared_weak() _NOEXCEPT;
};
#ifndef _LIBCPP_NO_RTTI
template <class _Tp, class _Dp, class _Alloc>
const void*
__shared_ptr_pointer<_Tp, _Dp, _Alloc>::__get_deleter(const type_info& __t) const _NOEXCEPT
{
return __t == typeid(_Dp) ? &__data_.first().second() : 0;
}
#endif // _LIBCPP_NO_RTTI
template <class _Tp, class _Dp, class _Alloc>
void
__shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared() _NOEXCEPT
{
__data_.first().second()(__data_.first().first());
__data_.first().second().~_Dp();
}
template <class _Tp, class _Dp, class _Alloc>
void
__shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT
{
typename _Alloc::template rebind<__shared_ptr_pointer>::other __a(__data_.second());
__data_.second().~_Alloc();
__a.deallocate(this, 1);
}
template <class _Tp, class _Alloc>
class __shared_ptr_emplace
: public __shared_weak_count
{
__compressed_pair<_Alloc, _Tp> __data_;
public:
#ifndef _LIBCPP_HAS_NO_VARIADICS
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a)
: __data_(_STD::move(__a)) {}
template <class ..._Args>
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a, _Args&& ...__args)
: __data_(_STD::move(__a), _Tp(_STD::forward<_Args>(__args)...)) {}
#else // _LIBCPP_HAS_NO_VARIADICS
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a)
: __data_(__a) {}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a, _A0& __a0)
: __data_(__a, _Tp(__a0)) {}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1)
: __data_(__a, _Tp(__a0, __a1)) {}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1, _A2& __a2)
: __data_(__a, _Tp(__a0, __a1, __a2)) {}
#endif // _LIBCPP_HAS_NO_VARIADICS
private:
virtual void __on_zero_shared() _NOEXCEPT;
virtual void __on_zero_shared_weak() _NOEXCEPT;
public:
_LIBCPP_INLINE_VISIBILITY
_Tp* get() _NOEXCEPT {return &__data_.second();}
};
template <class _Tp, class _Alloc>
void
__shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared() _NOEXCEPT
{
__data_.second().~_Tp();
}
template <class _Tp, class _Alloc>
void
__shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT
{
typename _Alloc::template rebind<__shared_ptr_emplace>::other __a(__data_.first());
__data_.first().~_Alloc();
__a.deallocate(this, 1);
}
template<class _Tp> class enable_shared_from_this;
template<class _Tp>
class _LIBCPP_VISIBLE shared_ptr
{
public:
typedef _Tp element_type;
private:
element_type* __ptr_;
__shared_weak_count* __cntrl_;
struct __nat {int __for_bool_;};
public:
shared_ptr() _NOEXCEPT;
shared_ptr(nullptr_t) _NOEXCEPT;
template<class _Yp> explicit shared_ptr(_Yp* __p);
template<class _Yp, class _Dp> shared_ptr(_Yp* __p, _Dp __d);
template<class _Yp, class _Dp, class _Alloc> shared_ptr(_Yp* __p, _Dp __d, _Alloc __a);
template <class _Dp> shared_ptr(nullptr_t __p, _Dp __d);
template <class _Dp, class _Alloc> shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a);
template<class _Yp> shared_ptr(const shared_ptr<_Yp>& __r, element_type* __p) _NOEXCEPT;
shared_ptr(const shared_ptr& __r) _NOEXCEPT;
template<class _Yp>
shared_ptr(const shared_ptr<_Yp>& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type = __nat())
_NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
shared_ptr(shared_ptr&& __r) _NOEXCEPT;
template<class _Yp> shared_ptr(shared_ptr<_Yp>&& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type = __nat())
_NOEXCEPT;
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Yp> explicit shared_ptr(const weak_ptr<_Yp>& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type= __nat());
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Yp> shared_ptr(auto_ptr<_Yp>&& __r);
#else
template<class _Yp> shared_ptr(auto_ptr<_Yp> __r);
#endif
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
private:
template <class _Yp, class _Dp> shared_ptr(const unique_ptr<_Yp, _Dp>& __r);// = delete;
public:
template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>&&,
typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>&&,
typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>,
typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>,
typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
~shared_ptr();
shared_ptr& operator=(const shared_ptr& __r) _NOEXCEPT;
template<class _Yp> shared_ptr& operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
shared_ptr& operator=(shared_ptr&& __r) _NOEXCEPT;
template<class _Yp> shared_ptr& operator=(shared_ptr<_Yp>&& __r);
template<class _Yp> shared_ptr& operator=(auto_ptr<_Yp>&& __r);
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Yp> shared_ptr& operator=(auto_ptr<_Yp> __r);
#endif
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
private:
template <class _Yp, class _Dp> shared_ptr& operator=(const unique_ptr<_Yp, _Dp>& __r);// = delete;
public:
template <class _Yp, class _Dp> shared_ptr& operator=(unique_ptr<_Yp, _Dp>&& __r);
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Yp, class _Dp> shared_ptr& operator=(unique_ptr<_Yp, _Dp> __r);
#endif
void swap(shared_ptr& __r) _NOEXCEPT;
void reset() _NOEXCEPT;
template<class _Yp> void reset(_Yp* __p) _NOEXCEPT;
template<class _Yp, class _Dp> void reset(_Yp* __p, _Dp __d);
template<class _Yp, class _Dp, class _Alloc> void reset(_Yp* __p, _Dp __d, _Alloc __a);
_LIBCPP_INLINE_VISIBILITY
element_type* get() const _NOEXCEPT {return __ptr_;}
_LIBCPP_INLINE_VISIBILITY
typename add_lvalue_reference<element_type>::type operator*() const _NOEXCEPT
{return *__ptr_;}
_LIBCPP_INLINE_VISIBILITY
element_type* operator->() const _NOEXCEPT {return __ptr_;}
_LIBCPP_INLINE_VISIBILITY
long use_count() const _NOEXCEPT {return __cntrl_ ? __cntrl_->use_count() : 0;}
_LIBCPP_INLINE_VISIBILITY
bool unique() const _NOEXCEPT {return use_count() == 1;}
_LIBCPP_INLINE_VISIBILITY
/*explicit*/ operator bool() const _NOEXCEPT {return get() != 0;}
template <class _U>
_LIBCPP_INLINE_VISIBILITY
bool owner_before(shared_ptr<_U> const& __p) const
{return __cntrl_ < __p.__cntrl_;}
template <class _U>
_LIBCPP_INLINE_VISIBILITY
bool owner_before(weak_ptr<_U> const& __p) const
{return __cntrl_ < __p.__cntrl_;}
#ifndef _LIBCPP_NO_RTTI
template <class _Dp>
_LIBCPP_INLINE_VISIBILITY
_Dp* __get_deleter() const _NOEXCEPT
{return (_Dp*)(__cntrl_ ? __cntrl_->__get_deleter(typeid(_Dp)) : 0);}
#endif // _LIBCPP_NO_RTTI
#ifndef _LIBCPP_HAS_NO_VARIADICS
template<class ..._Args>
static
shared_ptr<_Tp>
make_shared(_Args&& ...__args);
template<class _Alloc, class ..._Args>
static
shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _Args&& ...__args);
#else // _LIBCPP_HAS_NO_VARIADICS
static shared_ptr<_Tp> make_shared();
template<class _A0>
static shared_ptr<_Tp> make_shared(_A0&);
template<class _A0, class _A1>
static shared_ptr<_Tp> make_shared(_A0&, _A1&);
template<class _A0, class _A1, class _A2>
static shared_ptr<_Tp> make_shared(_A0&, _A1&, _A2&);
template<class _Alloc>
static shared_ptr<_Tp>
allocate_shared(const _Alloc& __a);
template<class _Alloc, class _A0>
static shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _A0& __a0);
template<class _Alloc, class _A0, class _A1>
static shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1);
template<class _Alloc, class _A0, class _A1, class _A2>
static shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2);
#endif // _LIBCPP_HAS_NO_VARIADICS
private:
template <class _Yp>
_LIBCPP_INLINE_VISIBILITY
void
__enable_weak_this(const enable_shared_from_this<_Yp>* __e) _NOEXCEPT
{
if (__e)
__e->__weak_this_ = *this;
}
_LIBCPP_INLINE_VISIBILITY
void __enable_weak_this(const void*) _NOEXCEPT {}
template <class _Up> friend class _LIBCPP_VISIBLE shared_ptr;
template <class _Up> friend class _LIBCPP_VISIBLE weak_ptr;
};
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr() _NOEXCEPT
: __ptr_(0),
__cntrl_(0)
{
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr(nullptr_t) _NOEXCEPT
: __ptr_(0),
__cntrl_(0)
{
}
template<class _Tp>
template<class _Yp>
shared_ptr<_Tp>::shared_ptr(_Yp* __p)
: __ptr_(__p)
{
unique_ptr<_Yp> __hold(__p);
typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk;
__cntrl_ = new _CntrlBlk(__p, default_delete<_Yp>(), allocator<_Yp>());
__hold.release();
__enable_weak_this(__p);
}
template<class _Tp>
template<class _Yp, class _Dp>
shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d)
: __ptr_(__p)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
typedef __shared_ptr_pointer<_Yp*, _Dp, allocator<_Yp> > _CntrlBlk;
__cntrl_ = new _CntrlBlk(__p, __d, allocator<_Yp>());
__enable_weak_this(__p);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
__d(__p);
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
template<class _Tp>
template<class _Dp>
shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d)
: __ptr_(0)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
typedef __shared_ptr_pointer<nullptr_t, _Dp, allocator<_Tp> > _CntrlBlk;
__cntrl_ = new _CntrlBlk(__p, __d, allocator<_Tp>());
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
__d(__p);
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
template<class _Tp>
template<class _Yp, class _Dp, class _Alloc>
shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d, _Alloc __a)
: __ptr_(__p)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
typedef __shared_ptr_pointer<_Yp*, _Dp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
typedef __allocator_destructor<_A2> _D2;
_A2 __a2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
::new(__hold2.get()) _CntrlBlk(__p, __d, __a);
__cntrl_ = __hold2.release();
__enable_weak_this(__p);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
__d(__p);
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
template<class _Tp>
template<class _Dp, class _Alloc>
shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a)
: __ptr_(0)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
typedef __shared_ptr_pointer<nullptr_t, _Dp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
typedef __allocator_destructor<_A2> _D2;
_A2 __a2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
::new(__hold2.get()) _CntrlBlk(__p, __d, __a);
__cntrl_ = __hold2.release();
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
__d(__p);
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r, element_type *__p) _NOEXCEPT
: __ptr_(__p),
__cntrl_(__r.__cntrl_)
{
if (__cntrl_)
__cntrl_->__add_shared();
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr(const shared_ptr& __r) _NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
if (__cntrl_)
__cntrl_->__add_shared();
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
_NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
if (__cntrl_)
__cntrl_->__add_shared();
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr(shared_ptr&& __r) _NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
__r.__ptr_ = 0;
__r.__cntrl_ = 0;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>::shared_ptr(shared_ptr<_Yp>&& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
_NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
__r.__ptr_ = 0;
__r.__cntrl_ = 0;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
template<class _Yp>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp>&& __r)
#else
shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp> __r)
#endif
: __ptr_(__r.get())
{
typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk;
__cntrl_ = new _CntrlBlk(__r.get(), default_delete<_Yp>(), allocator<_Yp>());
__enable_weak_this(__r.get());
__r.release();
}
template<class _Tp>
template <class _Yp, class _Dp>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r,
#else
shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r,
#endif
typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type)
: __ptr_(__r.get())
{
typedef __shared_ptr_pointer<_Yp*, _Dp, allocator<_Yp> > _CntrlBlk;
__cntrl_ = new _CntrlBlk(__r.get(), __r.get_deleter(), allocator<_Yp>());
__enable_weak_this(__r.get());
__r.release();
}
template<class _Tp>
template <class _Yp, class _Dp>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r,
#else
shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r,
#endif
typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type)
: __ptr_(__r.get())
{
typedef __shared_ptr_pointer<_Yp*,
reference_wrapper<typename remove_reference<_Dp>::type>,
allocator<_Yp> > _CntrlBlk;
__cntrl_ = new _CntrlBlk(__r.get(), ref(__r.get_deleter()), allocator<_Yp>());
__enable_weak_this(__r.get());
__r.release();
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template<class _Tp>
template<class ..._Args>
shared_ptr<_Tp>
shared_ptr<_Tp>::make_shared(_Args&& ...__args)
{
typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
typedef allocator<_CntrlBlk> _A2;
typedef __allocator_destructor<_A2> _D2;
_A2 __a2;
unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
::new(__hold2.get()) _CntrlBlk(__a2, _STD::forward<_Args>(__args)...);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _Alloc, class ..._Args>
shared_ptr<_Tp>
shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _Args&& ...__args)
{
typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
typedef __allocator_destructor<_A2> _D2;
_A2 __a2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
::new(__hold2.get()) _CntrlBlk(__a, _STD::forward<_Args>(__args)...);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
#else // _LIBCPP_HAS_NO_VARIADICS
template<class _Tp>
shared_ptr<_Tp>
shared_ptr<_Tp>::make_shared()
{
typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
typedef allocator<_CntrlBlk> _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2;
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__alloc2);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _A0>
shared_ptr<_Tp>
shared_ptr<_Tp>::make_shared(_A0& __a0)
{
typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
typedef allocator<_CntrlBlk> _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2;
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__alloc2, __a0);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _A0, class _A1>
shared_ptr<_Tp>
shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1)
{
typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
typedef allocator<_CntrlBlk> _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2;
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _A0, class _A1, class _A2>
shared_ptr<_Tp>
shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1, _A2& __a2)
{
typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
typedef allocator<_CntrlBlk> _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2;
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1, __a2);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _Alloc>
shared_ptr<_Tp>
shared_ptr<_Tp>::allocate_shared(const _Alloc& __a)
{
typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__a);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _Alloc, class _A0>
shared_ptr<_Tp>
shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0)
{
typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__a, __a0);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _Alloc, class _A0, class _A1>
shared_ptr<_Tp>
shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1)
{
typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__a, __a0, __a1);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
template<class _Tp>
template<class _Alloc, class _A0, class _A1, class _A2>
shared_ptr<_Tp>
shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2)
{
typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
typedef __allocator_destructor<_Alloc2> _D2;
_Alloc2 __alloc2(__a);
unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
::new(__hold2.get()) _CntrlBlk(__a, __a0, __a1, __a2);
shared_ptr<_Tp> __r;
__r.__ptr_ = __hold2.get()->get();
__r.__cntrl_ = __hold2.release();
__r.__enable_weak_this(__r.__ptr_);
return __r;
}
#endif // _LIBCPP_HAS_NO_VARIADICS
template<class _Tp>
shared_ptr<_Tp>::~shared_ptr()
{
if (__cntrl_)
__cntrl_->__release_shared();
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(const shared_ptr& __r) _NOEXCEPT
{
shared_ptr(__r).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT
{
shared_ptr(__r).swap(*this);
return *this;
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(shared_ptr&& __r) _NOEXCEPT
{
shared_ptr(_STD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(shared_ptr<_Yp>&& __r)
{
shared_ptr(_STD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(auto_ptr<_Yp>&& __r)
{
shared_ptr(_STD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template <class _Yp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp>&& __r)
{
shared_ptr(_STD::move(__r)).swap(*this);
return *this;
}
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(auto_ptr<_Yp> __r)
{
shared_ptr(__r).swap(*this);
return *this;
}
template<class _Tp>
template <class _Yp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>&
shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp> __r)
{
shared_ptr(_STD::move(__r)).swap(*this);
return *this;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
shared_ptr<_Tp>::swap(shared_ptr& __r) _NOEXCEPT
{
_STD::swap(__ptr_, __r.__ptr_);
_STD::swap(__cntrl_, __r.__cntrl_);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
shared_ptr<_Tp>::reset() _NOEXCEPT
{
shared_ptr().swap(*this);
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
void
shared_ptr<_Tp>::reset(_Yp* __p)
{
shared_ptr(__p).swap(*this);
}
template<class _Tp>
template<class _Yp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
void
shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d)
{
shared_ptr(__p, __d).swap(*this);
}
template<class _Tp>
template<class _Yp, class _Dp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
void
shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d, _Alloc __a)
{
shared_ptr(__p, __d, __a).swap(*this);
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template<class _Tp, class ..._Args>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
make_shared(_Args&& ...__args)
{
return shared_ptr<_Tp>::make_shared(_STD::forward<_Args>(__args)...);
}
template<class _Tp, class _Alloc, class ..._Args>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _Args&& ...__args)
{
return shared_ptr<_Tp>::allocate_shared(__a, _STD::forward<_Args>(__args)...);
}
#else // _LIBCPP_HAS_NO_VARIADICS
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
make_shared()
{
return shared_ptr<_Tp>::make_shared();
}
template<class _Tp, class _A0>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
make_shared(_A0& __a0)
{
return shared_ptr<_Tp>::make_shared(__a0);
}
template<class _Tp, class _A0, class _A1>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
make_shared(_A0& __a0, _A1& __a1)
{
return shared_ptr<_Tp>::make_shared(__a0, __a1);
}
template<class _Tp, class _A0, class _A1, class _A2>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
make_shared(_A0& __a0, _A1& __a1, _A2& __a2)
{
return shared_ptr<_Tp>::make_shared(__a0, __a1, __a2);
}
template<class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
allocate_shared(const _Alloc& __a)
{
return shared_ptr<_Tp>::allocate_shared(__a);
}
template<class _Tp, class _Alloc, class _A0>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _A0& __a0)
{
return shared_ptr<_Tp>::allocate_shared(__a, __a0);
}
template<class _Tp, class _Alloc, class _A0, class _A1>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1)
{
return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1);
}
template<class _Tp, class _Alloc, class _A0, class _A1, class _A2>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2)
{
return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1, __a2);
}
#endif // _LIBCPP_HAS_NO_VARIADICS
template<class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
{
return __x.get() == __y.get();
}
template<class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
{
return !(__x == __y);
}
template<class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
{
return __x.get() < __y.get();
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(shared_ptr<_Tp>& __x, shared_ptr<_Tp>& __y) _NOEXCEPT
{
__x.swap(__y);
}
template<class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
static_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
{
return shared_ptr<_Tp>(__r, static_cast<_Tp*>(__r.get()));
}
template<class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
dynamic_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
{
_Tp* __p = dynamic_cast<_Tp*>(__r.get());
return __p ? shared_ptr<_Tp>(__r, __p) : shared_ptr<_Tp>();
}
template<class _Tp, class _Up>
shared_ptr<_Tp>
const_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
{
return shared_ptr<_Tp>(__r, const_cast<_Tp*>(__r.get()));
}
#ifndef _LIBCPP_NO_RTTI
template<class _Dp, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Dp*
get_deleter(const shared_ptr<_Tp>& __p) _NOEXCEPT
{
return __p.template __get_deleter<_Dp>();
}
#endif // _LIBCPP_NO_RTTI
template<class _Tp>
class _LIBCPP_VISIBLE weak_ptr
{
public:
typedef _Tp element_type;
private:
element_type* __ptr_;
__shared_weak_count* __cntrl_;
public:
weak_ptr() _NOEXCEPT;
template<class _Yp> weak_ptr(shared_ptr<_Yp> const& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
_NOEXCEPT;
weak_ptr(weak_ptr const& __r) _NOEXCEPT;
template<class _Yp> weak_ptr(weak_ptr<_Yp> const& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
_NOEXCEPT;
~weak_ptr();
weak_ptr& operator=(weak_ptr const& __r) _NOEXCEPT;
template<class _Yp> weak_ptr& operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT;
template<class _Yp> weak_ptr& operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT;
void swap(weak_ptr& __r) _NOEXCEPT;
void reset() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
long use_count() const _NOEXCEPT
{return __cntrl_ ? __cntrl_->use_count() : 0;}
_LIBCPP_INLINE_VISIBILITY
bool expired() const _NOEXCEPT
{return __cntrl_ == 0 || __cntrl_->use_count() == 0;}
shared_ptr<_Tp> lock() const _NOEXCEPT;
template<class _Up>
_LIBCPP_INLINE_VISIBILITY
bool owner_before(const shared_ptr<_Up>& __r) const
{return __cntrl_ < __r.__cntrl_;}
template<class _Up>
_LIBCPP_INLINE_VISIBILITY
bool owner_before(const weak_ptr<_Up>& __r) const
{return __cntrl_ < __r.__cntrl_;}
template <class _Up> friend class _LIBCPP_VISIBLE weak_ptr;
template <class _Up> friend class _LIBCPP_VISIBLE shared_ptr;
};
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>::weak_ptr() _NOEXCEPT
: __ptr_(0),
__cntrl_(0)
{
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>::weak_ptr(weak_ptr const& __r) _NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
if (__cntrl_)
__cntrl_->__add_weak();
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>::weak_ptr(shared_ptr<_Yp> const& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
_NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
if (__cntrl_)
__cntrl_->__add_weak();
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>::weak_ptr(weak_ptr<_Yp> const& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
_NOEXCEPT
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_)
{
if (__cntrl_)
__cntrl_->__add_weak();
}
template<class _Tp>
weak_ptr<_Tp>::~weak_ptr()
{
if (__cntrl_)
__cntrl_->__release_weak();
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>&
weak_ptr<_Tp>::operator=(weak_ptr const& __r) _NOEXCEPT
{
weak_ptr(__r).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>&
weak_ptr<_Tp>::operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT
{
weak_ptr(__r).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>&
weak_ptr<_Tp>::operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT
{
weak_ptr(__r).swap(*this);
return *this;
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
weak_ptr<_Tp>::swap(weak_ptr& __r) _NOEXCEPT
{
_STD::swap(__ptr_, __r.__ptr_);
_STD::swap(__cntrl_, __r.__cntrl_);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(weak_ptr<_Tp>& __x, weak_ptr<_Tp>& __y) _NOEXCEPT
{
__x.swap(__y);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
weak_ptr<_Tp>::reset() _NOEXCEPT
{
weak_ptr().swap(*this);
}
template<class _Tp>
template<class _Yp>
shared_ptr<_Tp>::shared_ptr(const weak_ptr<_Yp>& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
: __ptr_(__r.__ptr_),
__cntrl_(__r.__cntrl_ ? __r.__cntrl_->lock() : __r.__cntrl_)
{
if (__cntrl_ == 0)
#ifndef _LIBCPP_NO_EXCEPTIONS
throw bad_weak_ptr();
#else
assert(!"bad_weak_ptr");
#endif
}
template<class _Tp>
shared_ptr<_Tp>
weak_ptr<_Tp>::lock() const _NOEXCEPT
{
shared_ptr<_Tp> __r;
__r.__cntrl_ = __cntrl_ ? __cntrl_->lock() : __cntrl_;
if (__r.__cntrl_)
__r.__ptr_ = __ptr_;
return __r;
}
template <class _Tp> struct owner_less;
template <class _Tp>
struct _LIBCPP_VISIBLE owner_less<shared_ptr<_Tp> >
: binary_function<shared_ptr<_Tp>, shared_ptr<_Tp>, bool>
{
typedef bool result_type;
_LIBCPP_INLINE_VISIBILITY
bool operator()(shared_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
{return __x.owner_before(__y);}
_LIBCPP_INLINE_VISIBILITY
bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
{return __x.owner_before(__y);}
_LIBCPP_INLINE_VISIBILITY
bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
{return __x.owner_before(__y);}
};
template <class _Tp>
struct _LIBCPP_VISIBLE owner_less<weak_ptr<_Tp> >
: binary_function<weak_ptr<_Tp>, weak_ptr<_Tp>, bool>
{
typedef bool result_type;
_LIBCPP_INLINE_VISIBILITY
bool operator()( weak_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
{return __x.owner_before(__y);}
_LIBCPP_INLINE_VISIBILITY
bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
{return __x.owner_before(__y);}
_LIBCPP_INLINE_VISIBILITY
bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
{return __x.owner_before(__y);}
};
template<class _Tp>
class _LIBCPP_VISIBLE enable_shared_from_this
{
mutable weak_ptr<_Tp> __weak_this_;
protected:
_LIBCPP_INLINE_VISIBILITY
enable_shared_from_this() _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY
enable_shared_from_this(enable_shared_from_this const&) _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY
enable_shared_from_this& operator=(enable_shared_from_this const&) _NOEXCEPT
{return *this;}
_LIBCPP_INLINE_VISIBILITY
~enable_shared_from_this() {}
public:
_LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp> shared_from_this()
{return shared_ptr<_Tp>(__weak_this_);}
_LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp const> shared_from_this() const
{return shared_ptr<const _Tp>(__weak_this_);}
template <class _Up> friend class shared_ptr;
};
template <class _Tp>
struct _LIBCPP_VISIBLE hash<shared_ptr<_Tp> >
{
typedef shared_ptr<_Tp> argument_type;
typedef size_t result_type;
_LIBCPP_INLINE_VISIBILITY
result_type operator()(const argument_type& __ptr) const _NOEXCEPT
{
return hash<_Tp*>()(__ptr.get());
}
};
//enum class
struct _LIBCPP_VISIBLE pointer_safety
{
enum _
{
relaxed,
preferred,
strict
};
_ __v_;
_LIBCPP_INLINE_VISIBILITY
pointer_safety(_ __v) : __v_(__v) {}
_LIBCPP_INLINE_VISIBILITY
operator int() const {return __v_;}
};
void declare_reachable(void* __p);
void declare_no_pointers(char* __p, size_t __n);
void undeclare_no_pointers(char* __p, size_t __n);
pointer_safety get_pointer_safety() _NOEXCEPT;
void* __undeclare_reachable(void* __p);
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp*
undeclare_reachable(_Tp* __p)
{
return static_cast<_Tp*>(__undeclare_reachable(__p));
}
void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space);
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_MEMORY
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