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5fec82dc0d
cxx/include/memory
Howard Hinnant 5fec82dc0d Implement [util.smartptr.shared.atomic]. This is the last unimplemented 
section in libc++.  This requires a recompiled dylib.  Failure to rebuild
the dylib will result in a link-time error if and only if the functions from
[util.smartptr.shared.atomic] are used.

The implementation is not lock free.  After considerable thought, I know of no
way to make the implementation lock free.  Ideas welcome along that front.  But
changing the ABI of shared_ptr is not on the table at this point.

The mutex used to lock these function is encapsulated by std::__sp_mut.  The
only thing the client knows about std::__sp_mut is that it has a void* data
member, can't be constructed, and has lock and unlock members.  Within the
binary __sp_mut is currently implemented as a pointer to a std::mutex.  That can
change in the future without disturbing the ABI (as long as sizeof(__sp_mut)
remains constant.

I specifically did not make __sp_mut a spin lock as I have a pathological
distrust of spin locks.  Testing on OS X reveals that the use of std::mutex in
this role is not a large performance penalty as long as the contention for the
mutex is low (more likely to get the lock than to have to wait).  In the future
we can still make __sp_mut a spin lock if that is what is desired (without ABI
damage).

The dylib contains 16 __sp_mut's to be chosen based on the hash of the address
of the shared_ptr.  The constant 16 is a ball-park reasonable space/time
tradeoff.

std::hash<T*> was changed to call __murmur2_or_cityhash, instead of the identity
function.  I had thought we had already done this, but I was mistaken.

All of this is under #if __has_feature(cxx_atomic) even though the
implementation is not lock free, because the signatures require access to
std::memory_order, which is currently available only under
__has_feature(cxx_atomic).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@160940 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-30 01:40:57 +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>
#include <iosfwd>
#include <tuple>
#include <cstring>
#if defined(_LIBCPP_NO_EXCEPTIONS)
#include <cassert>
#endif
#if __has_feature(cxx_atomic)
# include <atomic>
#endif
#include <__undef_min_max>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// 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;};
};
template <>
class _LIBCPP_VISIBLE allocator<const void>
{
public:
typedef const void* pointer;
typedef const void* const_pointer;
typedef const 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 _VSTD::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 _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp*
__to_raw_pointer(_Tp* __p) _NOEXCEPT
{
return __p;
}
template <class _Pointer>
inline _LIBCPP_INLINE_VISIBILITY
typename pointer_traits<_Pointer>::element_type*
__to_raw_pointer(_Pointer __p) _NOEXCEPT
{
return _VSTD::__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
#if !defined(_LIBCPP_HAS_NO_ADVANCED_SFINAE) && !defined(_LIBCPP_HAS_NO_VARIADICS)
template <class _Alloc, class _Tp, class ..._Args>
decltype(_VSTD::declval<_Alloc>().construct(_VSTD::declval<_Tp*>(),
_VSTD::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
{
};
#else // _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, _VSTD::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);}
template <class _Ptr>
_LIBCPP_INLINE_VISIBILITY
static
void
__construct_forward(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __begin2)
{
for (; __begin1 != __end1; ++__begin1, ++__begin2)
construct(__a, _VSTD::__to_raw_pointer(__begin2), _VSTD::move_if_noexcept(*__begin1));
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static
typename enable_if
<
(is_same<allocator_type, allocator<_Tp> >::value
|| !__has_construct<allocator_type, _Tp*, _Tp>::value) &&
is_trivially_move_constructible<_Tp>::value,
void
>::type
__construct_forward(allocator_type& __a, _Tp* __begin1, _Tp* __end1, _Tp*& __begin2)
{
ptrdiff_t _Np = __end1 - __begin1;
_VSTD::memcpy(__begin2, __begin1, _Np * sizeof(_Tp));
__begin2 += _Np;
}
template <class _Ptr>
_LIBCPP_INLINE_VISIBILITY
static
void
__construct_backward(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __end2)
{
while (__end1 != __begin1)
construct(__a, _VSTD::__to_raw_pointer(--__end2), _VSTD::move_if_noexcept(*--__end1));
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static
typename enable_if
<
(is_same<allocator_type, allocator<_Tp> >::value
|| !__has_construct<allocator_type, _Tp*, _Tp>::value) &&
is_trivially_move_constructible<_Tp>::value,
void
>::type
__construct_backward(allocator_type& __a, _Tp* __begin1, _Tp* __end1, _Tp*& __end2)
{
ptrdiff_t _Np = __end1 - __begin1;
__end2 -= _Np;
_VSTD::memcpy(__end2, __begin1, _Np * sizeof(_Tp));
}
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, 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, _VSTD::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(_VSTD::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;}
};
// 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 _VSTD::addressof(__x);}
_LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT
{return _VSTD::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(_VSTD::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
void
construct(pointer __p, _A0& __a0)
{
::new((void*)__p) _Tp(__a0);
}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p, const _A0& __a0)
{
::new((void*)__p) _Tp(__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 _LIBCPP_VISIBLE allocator<const _Tp>
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef const _Tp* pointer;
typedef const _Tp* const_pointer;
typedef const _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 const_pointer address(const_reference __x) const _NOEXCEPT
{return _VSTD::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(_VSTD::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
void
construct(pointer __p, _A0& __a0)
{
::new((void*)__p) _Tp(__a0);
}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
void
construct(pointer __p, const _A0& __a0)
{
::new((void*)__p) _Tp(__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
#if __has_feature(is_final)
&& !__is_final(_T1)
#endif
,
bool = is_empty<_T2>::value
#if __has_feature(is_final)
&& !__is_final(_T2)
#endif
>
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)
: __first_(_VSTD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: __second_(_VSTD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: __first_(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
is_nothrow_copy_constructible<_T2>::value)
: __first_(__p.first()),
__second_(__p.second()) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
is_nothrow_copy_assignable<_T2>::value)
{
__first_ = __p.first();
__second_ = __p.second();
return *this;
}
#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_(_VSTD::forward<_T1>(__p.first())),
__second_(_VSTD::forward<_T2>(__p.second())) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
is_nothrow_move_assignable<_T2>::value)
{
__first_ = _VSTD::forward<_T1>(__p.first());
__second_ = _VSTD::forward<_T2>(__p.second());
return *this;
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(piecewise_construct_t __pc,
tuple<_Args1...> __first_args,
tuple<_Args2...> __second_args,
__tuple_indices<_I1...>,
__tuple_indices<_I2...>)
: __first_(_VSTD::forward<_Args1>(get<_I1>(__first_args))...),
__second_(_VSTD::forward<_Args2>(get<_I2>(__second_args))...)
{}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_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 _VSTD::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)
: _T1(_VSTD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: __second_(_VSTD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: _T1(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
is_nothrow_copy_constructible<_T2>::value)
: _T1(__p.first()), __second_(__p.second()) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
is_nothrow_copy_assignable<_T2>::value)
{
_T1::operator=(__p.first());
__second_ = __p.second();
return *this;
}
#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(_VSTD::move(__p.first())), __second_(_VSTD::forward<_T2>(__p.second())) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
is_nothrow_move_assignable<_T2>::value)
{
_T1::operator=(_VSTD::move(__p.first()));
__second_ = _VSTD::forward<_T2>(__p.second());
return *this;
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(piecewise_construct_t __pc,
tuple<_Args1...> __first_args,
tuple<_Args2...> __second_args,
__tuple_indices<_I1...>,
__tuple_indices<_I2...>)
: _T1(_VSTD::forward<_Args1>(get<_I1>(__first_args))...),
__second_(_VSTD::forward<_Args2>(get<_I2>(__second_args))...)
{}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_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 _VSTD::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_(_VSTD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: _T2(_VSTD::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(_VSTD::forward<_T2_param>(__t2)), __first_(_VSTD::forward<_T1_param>(__t1)) {}
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
is_nothrow_copy_constructible<_T2>::value)
: _T2(__p.second()), __first_(__p.first()) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
is_nothrow_copy_assignable<_T2>::value)
{
_T2::operator=(__p.second());
__first_ = __p.first();
return *this;
}
#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)
: _T2(_VSTD::forward<_T2>(__p.second())), __first_(_VSTD::move(__p.first())) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
is_nothrow_move_assignable<_T2>::value)
{
_T2::operator=(_VSTD::forward<_T2>(__p.second()));
__first_ = _VSTD::move(__p.first());
return *this;
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(piecewise_construct_t __pc,
tuple<_Args1...> __first_args,
tuple<_Args2...> __second_args,
__tuple_indices<_I1...>,
__tuple_indices<_I2...>)
: _T2(_VSTD::forward<_Args2>(get<_I2>(__second_args))...),
__first_(_VSTD::forward<_Args1>(get<_I1>(__first_args))...)
{}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_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 _VSTD::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(_VSTD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: _T2(_VSTD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: _T1(_VSTD::forward<_T1_param>(__t1)), _T2(_VSTD::forward<_T2_param>(__t2)) {}
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
is_nothrow_copy_constructible<_T2>::value)
: _T1(__p.first()), _T2(__p.second()) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
_NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
is_nothrow_copy_assignable<_T2>::value)
{
_T1::operator=(__p.first());
_T2::operator=(__p.second());
return *this;
}
#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(_VSTD::move(__p.first())), _T2(_VSTD::move(__p.second())) {}
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
_NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
is_nothrow_move_assignable<_T2>::value)
{
_T1::operator=(_VSTD::move(__p.first()));
_T2::operator=(_VSTD::move(__p.second()));
return *this;
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
_LIBCPP_INLINE_VISIBILITY
__libcpp_compressed_pair_imp(piecewise_construct_t __pc,
tuple<_Args1...> __first_args,
tuple<_Args2...> __second_args,
__tuple_indices<_I1...>,
__tuple_indices<_I2...>)
: _T1(_VSTD::forward<_Args1>(get<_I1>(__first_args))...),
_T2(_VSTD::forward<_Args2>(get<_I2>(__second_args))...)
{}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_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&)
_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)
: base(_VSTD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T2_param __t2)
: base(_VSTD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __compressed_pair(_T1_param __t1, _T2_param __t2)
: base(_VSTD::forward<_T1_param>(__t1), _VSTD::forward<_T2_param>(__t2)) {}
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY
__compressed_pair(const __compressed_pair& __p)
_NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
is_nothrow_copy_constructible<_T2>::value)
: base(__p) {}
_LIBCPP_INLINE_VISIBILITY
__compressed_pair& operator=(const __compressed_pair& __p)
_NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
is_nothrow_copy_assignable<_T2>::value)
{
base::operator=(__p);
return *this;
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY
__compressed_pair(__compressed_pair&& __p)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)
: base(_VSTD::move(__p)) {}
_LIBCPP_INLINE_VISIBILITY
__compressed_pair& operator=(__compressed_pair&& __p)
_NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
is_nothrow_move_assignable<_T2>::value)
{
base::operator=(_VSTD::move(__p));
return *this;
}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class... _Args1, class... _Args2>
_LIBCPP_INLINE_VISIBILITY
__compressed_pair(piecewise_construct_t __pc, tuple<_Args1...> __first_args,
tuple<_Args2...> __second_args)
: base(__pc, _VSTD::move(__first_args), _VSTD::move(__second_args),
typename __make_tuple_indices<sizeof...(_Args1)>::type(),
typename __make_tuple_indices<sizeof...(_Args2) >::type())
{}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_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);}
// __same_or_less_cv_qualified
template <class _Ptr1, class _Ptr2,
bool = is_same<typename remove_cv<typename pointer_traits<_Ptr1>::element_type>::type,
typename remove_cv<typename pointer_traits<_Ptr2>::element_type>::type
>::value
>
struct __same_or_less_cv_qualified_imp
: is_convertible<_Ptr1, _Ptr2> {};
template <class _Ptr1, class _Ptr2>
struct __same_or_less_cv_qualified_imp<_Ptr1, _Ptr2, false>
: false_type {};
template <class _Ptr1, class _Ptr2, bool = is_scalar<_Ptr1>::value &&
!is_pointer<_Ptr1>::value>
struct __same_or_less_cv_qualified
: __same_or_less_cv_qualified_imp<_Ptr1, _Ptr2> {};
template <class _Ptr1, class _Ptr2>
struct __same_or_less_cv_qualified<_Ptr1, _Ptr2, true>
: false_type {};
// default_delete
template <class _Tp>
struct _LIBCPP_VISIBLE default_delete
{
#ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT = default;
#else
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT {}
#endif
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[]>
{
public:
#ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT = default;
#else
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT {}
#endif
template <class _Up>
_LIBCPP_INLINE_VISIBILITY default_delete(const default_delete<_Up[]>&,
typename enable_if<__same_or_less_cv_qualified<_Up*, _Tp*>::value>::type* = 0) _NOEXCEPT {}
template <class _Up>
_LIBCPP_INLINE_VISIBILITY
void operator() (_Up* __ptr,
typename enable_if<__same_or_less_cv_qualified<_Up*, _Tp*>::value>::type* = 0) const _NOEXCEPT
{
static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
delete [] __ptr;
}
};
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_;
#ifdef _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 _LIBCPP_CONSTEXPR unique_ptr() _NOEXCEPT
: __ptr_(pointer())
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 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_(_VSTD::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, _VSTD::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(), _VSTD::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(), _VSTD::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() = _VSTD::forward<deleter_type>(__u.get_deleter());
return *this;
}
template <class _Up, class _Ep>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_array<_Up>::value &&
is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
is_assignable<deleter_type&, _Ep&&>::value,
unique_ptr&
>::type
operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT
{
reset(__u.release());
__ptr_.second() = _VSTD::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(), _VSTD::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() = _VSTD::forward<deleter_type>(__u.get_deleter());
return *this;
}
_LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
: __ptr_(_VSTD::move(__p), _VSTD::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
_LIBCPP_EXPLICIT operator bool() const _NOEXCEPT
{return __ptr_.first() != nullptr;}
_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_;
#ifdef _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 _LIBCPP_CONSTEXPR unique_ptr() _NOEXCEPT
: __ptr_(pointer())
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 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 _Pp,
class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY explicit unique_ptr(_Pp __p) _NOEXCEPT
: __ptr_(__p)
{
static_assert(!is_pointer<deleter_type>::value,
"unique_ptr constructed with null function pointer deleter");
}
template <class _Pp,
class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY unique_ptr(_Pp __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 _Pp,
class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY unique_ptr(_Pp __p, typename remove_reference<deleter_type>::type&& __d)
_NOEXCEPT
: __ptr_(__p, _VSTD::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(), _VSTD::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(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
{
reset(__u.release());
__ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
return *this;
}
template <class _Up, class _Ep>
_LIBCPP_INLINE_VISIBILITY
unique_ptr(unique_ptr<_Up, _Ep>&& __u,
typename enable_if
<
is_array<_Up>::value &&
__same_or_less_cv_qualified<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(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
template <class _Up, class _Ep>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_array<_Up>::value &&
__same_or_less_cv_qualified<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
is_assignable<deleter_type&, _Ep&&>::value,
unique_ptr&
>::type
operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT
{
reset(__u.release());
__ptr_.second() = _VSTD::forward<_Ep>(__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, _VSTD::forward<deleter_type>(__d)) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, deleter_type __d)
: __ptr_(pointer(), _VSTD::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(), _VSTD::forward<deleter_type>(__u->get_deleter())) {}
_LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(__rv<unique_ptr> __u)
{
reset(__u->release());
__ptr_.second() = _VSTD::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
_LIBCPP_EXPLICIT operator bool() const _NOEXCEPT
{return __ptr_.first() != nullptr;}
_LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
{
pointer __t = __ptr_.first();
__ptr_.first() = pointer();
return __t;
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Pp,
class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
>
_LIBCPP_INLINE_VISIBILITY void reset(_Pp __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)
{
typedef typename unique_ptr<_T1, _D1>::pointer _P1;
typedef typename unique_ptr<_T2, _D2>::pointer _P2;
typedef typename common_type<_P1, _P2>::type _V;
return less<_V>()(__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 _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const unique_ptr<_T1, _D1>& __x, nullptr_t) _NOEXCEPT
{
return !__x;
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(nullptr_t, const unique_ptr<_T1, _D1>& __x) _NOEXCEPT
{
return !__x;
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const unique_ptr<_T1, _D1>& __x, nullptr_t) _NOEXCEPT
{
return static_cast<bool>(__x);
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(nullptr_t, const unique_ptr<_T1, _D1>& __x) _NOEXCEPT
{
return static_cast<bool>(__x);
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const unique_ptr<_T1, _D1>& __x, nullptr_t)
{
typedef typename unique_ptr<_T1, _D1>::pointer _P1;
return less<_P1>()(__x.get(), nullptr);
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(nullptr_t, const unique_ptr<_T1, _D1>& __x)
{
typedef typename unique_ptr<_T1, _D1>::pointer _P1;
return less<_P1>()(nullptr, __x.get());
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>(const unique_ptr<_T1, _D1>& __x, nullptr_t)
{
return nullptr < __x;
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>(nullptr_t, const unique_ptr<_T1, _D1>& __x)
{
return __x < nullptr;
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const unique_ptr<_T1, _D1>& __x, nullptr_t)
{
return !(nullptr < __x);
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(nullptr_t, const unique_ptr<_T1, _D1>& __x)
{
return !(__x < nullptr);
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const unique_ptr<_T1, _D1>& __x, nullptr_t)
{
return !(__x < nullptr);
}
template <class _T1, class _D1>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(nullptr_t, const unique_ptr<_T1, _D1>& __x)
{
return !(nullptr < __x);
}
#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
unique_ptr<_Tp, _Dp>
move(unique_ptr<_Tp, _Dp>& __t)
{
return unique_ptr<_Tp, _Dp>(__rv<unique_ptr<_Tp, _Dp> >(__t));
}
#endif
template <class _Tp> struct hash;
// We use murmur2 when size_t is 32 bits, and cityhash64 when size_t
// is 64 bits. This is because cityhash64 uses 64bit x 64bit
// multiplication, which can be very slow on 32-bit systems.
template <class _Size, size_t = sizeof(_Size)*__CHAR_BIT__>
struct __murmur2_or_cityhash;
template <class _Size>
struct __murmur2_or_cityhash<_Size, 32>
{
_Size operator()(const void* __key, _Size __len);
};
// murmur2
template <class _Size>
_Size
__murmur2_or_cityhash<_Size, 32>::operator()(const void* __key, _Size __len)
{
const _Size __m = 0x5bd1e995;
const _Size __r = 24;
_Size __h = __len;
const unsigned char* __data = static_cast<const unsigned char*>(__key);
for (; __len >= 4; __data += 4, __len -= 4)
{
_Size __k = *(const _Size*)__data;
__k *= __m;
__k ^= __k >> __r;
__k *= __m;
__h *= __m;
__h ^= __k;
}
switch (__len)
{
case 3:
__h ^= __data[2] << 16;
case 2:
__h ^= __data[1] << 8;
case 1:
__h ^= __data[0];
__h *= __m;
}
__h ^= __h >> 13;
__h *= __m;
__h ^= __h >> 15;
return __h;
}
template <class _Size>
struct __murmur2_or_cityhash<_Size, 64>
{
_Size operator()(const void* __key, _Size __len);
private:
// Some primes between 2^63 and 2^64.
static const _Size __k0 = 0xc3a5c85c97cb3127ULL;
static const _Size __k1 = 0xb492b66fbe98f273ULL;
static const _Size __k2 = 0x9ae16a3b2f90404fULL;
static const _Size __k3 = 0xc949d7c7509e6557ULL;
static _Size __rotate(_Size __val, int __shift) {
return __shift == 0 ? __val : ((__val >> __shift) | (__val << (64 - __shift)));
}
static _Size __rotate_by_at_least_1(_Size __val, int __shift) {
return (__val >> __shift) | (__val << (64 - __shift));
}
static _Size __shift_mix(_Size __val) {
return __val ^ (__val >> 47);
}
static _Size __hash_len_16(_Size __u, _Size __v) {
const _Size __mul = 0x9ddfea08eb382d69ULL;
_Size __a = (__u ^ __v) * __mul;
__a ^= (__a >> 47);
_Size __b = (__v ^ __a) * __mul;
__b ^= (__b >> 47);
__b *= __mul;
return __b;
}
static _Size __hash_len_0_to_16(const char* __s, _Size __len) {
if (__len > 8) {
const _Size __a = *(const _Size*)__s;
const _Size __b = *(const _Size*)(__s + __len - 8);
return __hash_len_16(__a, __rotate_by_at_least_1(__b + __len, __len)) ^ __b;
}
if (__len >= 4) {
const uint32_t __a = *(const uint32_t*)(__s);
const uint32_t __b = *(const uint32_t*)(__s + __len - 4);
return __hash_len_16(__len + (__a << 3), __b);
}
if (__len > 0) {
const unsigned char __a = __s[0];
const unsigned char __b = __s[__len >> 1];
const unsigned char __c = __s[__len - 1];
const uint32_t __y = static_cast<uint32_t>(__a) +
(static_cast<uint32_t>(__b) << 8);
const uint32_t __z = __len + (static_cast<uint32_t>(__c) << 2);
return __shift_mix(__y * __k2 ^ __z * __k3) * __k2;
}
return __k2;
}
static _Size __hash_len_17_to_32(const char *__s, _Size __len) {
const _Size __a = *(const _Size*)(__s) * __k1;
const _Size __b = *(const _Size*)(__s + 8);
const _Size __c = *(const _Size*)(__s + __len - 8) * __k2;
const _Size __d = *(const _Size*)(__s + __len - 16) * __k0;
return __hash_len_16(__rotate(__a - __b, 43) + __rotate(__c, 30) + __d,
__a + __rotate(__b ^ __k3, 20) - __c + __len);
}
// Return a 16-byte hash for 48 bytes. Quick and dirty.
// Callers do best to use "random-looking" values for a and b.
static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
_Size __w, _Size __x, _Size __y, _Size __z, _Size __a, _Size __b) {
__a += __w;
__b = __rotate(__b + __a + __z, 21);
const _Size __c = __a;
__a += __x;
__a += __y;
__b += __rotate(__a, 44);
return pair<_Size, _Size>(__a + __z, __b + __c);
}
// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty.
static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
const char* __s, _Size __a, _Size __b) {
return __weak_hash_len_32_with_seeds(*(const _Size*)(__s),
*(const _Size*)(__s + 8),
*(const _Size*)(__s + 16),
*(const _Size*)(__s + 24),
__a,
__b);
}
// Return an 8-byte hash for 33 to 64 bytes.
static _Size __hash_len_33_to_64(const char *__s, size_t __len) {
_Size __z = *(const _Size*)(__s + 24);
_Size __a = *(const _Size*)(__s) +
(__len + *(const _Size*)(__s + __len - 16)) * __k0;
_Size __b = __rotate(__a + __z, 52);
_Size __c = __rotate(__a, 37);
__a += *(const _Size*)(__s + 8);
__c += __rotate(__a, 7);
__a += *(const _Size*)(__s + 16);
_Size __vf = __a + __z;
_Size __vs = __b + __rotate(__a, 31) + __c;
__a = *(const _Size*)(__s + 16) + *(const _Size*)(__s + __len - 32);
__z += *(const _Size*)(__s + __len - 8);
__b = __rotate(__a + __z, 52);
__c = __rotate(__a, 37);
__a += *(const _Size*)(__s + __len - 24);
__c += __rotate(__a, 7);
__a += *(const _Size*)(__s + __len - 16);
_Size __wf = __a + __z;
_Size __ws = __b + __rotate(__a, 31) + __c;
_Size __r = __shift_mix((__vf + __ws) * __k2 + (__wf + __vs) * __k0);
return __shift_mix(__r * __k0 + __vs) * __k2;
}
};
// cityhash64
template <class _Size>
_Size
__murmur2_or_cityhash<_Size, 64>::operator()(const void* __key, _Size __len)
{
const char* __s = static_cast<const char*>(__key);
if (__len <= 32) {
if (__len <= 16) {
return __hash_len_0_to_16(__s, __len);
} else {
return __hash_len_17_to_32(__s, __len);
}
} else if (__len <= 64) {
return __hash_len_33_to_64(__s, __len);
}
// For strings over 64 bytes we hash the end first, and then as we
// loop we keep 56 bytes of state: v, w, x, y, and z.
_Size __x = *(const _Size*)(__s + __len - 40);
_Size __y = *(const _Size*)(__s + __len - 16) +
*(const _Size*)(__s + __len - 56);
_Size __z = __hash_len_16(*(const _Size*)(__s + __len - 48) + __len,
*(const _Size*)(__s + __len - 24));
pair<_Size, _Size> __v = __weak_hash_len_32_with_seeds(__s + __len - 64, __len, __z);
pair<_Size, _Size> __w = __weak_hash_len_32_with_seeds(__s + __len - 32, __y + __k1, __x);
__x = __x * __k1 + *(const _Size*)(__s);
// Decrease len to the nearest multiple of 64, and operate on 64-byte chunks.
__len = (__len - 1) & ~static_cast<_Size>(63);
do {
__x = __rotate(__x + __y + __v.first + *(const _Size*)(__s + 8), 37) * __k1;
__y = __rotate(__y + __v.second + *(const _Size*)(__s + 48), 42) * __k1;
__x ^= __w.second;
__y += __v.first + *(const _Size*)(__s + 40);
__z = __rotate(__z + __w.first, 33) * __k1;
__v = __weak_hash_len_32_with_seeds(__s, __v.second * __k1, __x + __w.first);
__w = __weak_hash_len_32_with_seeds(__s + 32, __z + __w.second,
__y + *(const _Size*)(__s + 16));
std::swap(__z, __x);
__s += 64;
__len -= 64;
} while (__len != 0);
return __hash_len_16(
__hash_len_16(__v.first, __w.first) + __shift_mix(__y) * __k1 + __z,
__hash_len_16(__v.second, __w.second) + __x);
}
template <class _Tp, size_t = sizeof(_Tp) / sizeof(size_t)>
struct __scalar_hash;
template <class _Tp>
struct __scalar_hash<_Tp, 0>
: public unary_function<_Tp, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
size_t __a;
} __u;
__u.__a = 0;
__u.__t = __v;
return __u.__a;
}
};
template <class _Tp>
struct __scalar_hash<_Tp, 1>
: public unary_function<_Tp, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
size_t __a;
} __u;
__u.__t = __v;
return __u.__a;
}
};
template <class _Tp>
struct __scalar_hash<_Tp, 2>
: public unary_function<_Tp, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
struct
{
size_t __a;
size_t __b;
};
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
template <class _Tp>
struct __scalar_hash<_Tp, 3>
: public unary_function<_Tp, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
struct
{
size_t __a;
size_t __b;
size_t __c;
};
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
template <class _Tp>
struct __scalar_hash<_Tp, 4>
: public unary_function<_Tp, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
struct
{
size_t __a;
size_t __b;
size_t __c;
size_t __d;
};
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
template<class _Tp>
struct _LIBCPP_VISIBLE hash<_Tp*>
: public unary_function<_Tp*, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp* __v) const _NOEXCEPT
{
union
{
_Tp* __t;
size_t __a;
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
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)
{
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
#ifndef _LIBCPP_NO_EXCEPTIONS
_ForwardIterator __s = __r;
try
{
#endif
for (; __f != __l; ++__f, ++__r)
::new(&*__r) value_type(*__f);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
for (; __s != __r; ++__s)
__s->~value_type();
throw;
}
#endif
return __r;
}
template <class _InputIterator, class _Size, class _ForwardIterator>
_ForwardIterator
uninitialized_copy_n(_InputIterator __f, _Size __n, _ForwardIterator __r)
{
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
#ifndef _LIBCPP_NO_EXCEPTIONS
_ForwardIterator __s = __r;
try
{
#endif
for (; __n > 0; ++__f, ++__r, --__n)
::new(&*__r) value_type(*__f);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
for (; __s != __r; ++__s)
__s->~value_type();
throw;
}
#endif
return __r;
}
template <class _ForwardIterator, class _Tp>
void
uninitialized_fill(_ForwardIterator __f, _ForwardIterator __l, const _Tp& __x)
{
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
#ifndef _LIBCPP_NO_EXCEPTIONS
_ForwardIterator __s = __f;
try
{
#endif
for (; __f != __l; ++__f)
::new(&*__f) value_type(__x);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
for (; __s != __f; ++__s)
__s->~value_type();
throw;
}
#endif
}
template <class _ForwardIterator, class _Size, class _Tp>
_ForwardIterator
uninitialized_fill_n(_ForwardIterator __f, _Size __n, const _Tp& __x)
{
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
#ifndef _LIBCPP_NO_EXCEPTIONS
_ForwardIterator __s = __f;
try
{
#endif
for (; __n > 0; ++__f, --__n)
::new(&*__f) value_type(__x);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
for (; __s != __f; ++__s)
__s->~value_type();
throw;
}
#endif
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;
// purposefully not protected with #ifndef _LIBCPP_NO_RTTI because doing so
// breaks ABI for those clients who need to compile their projects with
// -fno-rtti and yet link against a libc++.dylib compiled without -fno-rtti.
virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
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, _VSTD::move(__d)), _VSTD::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_(_VSTD::move(__a)) {}
template <class ..._Args>
_LIBCPP_INLINE_VISIBILITY
__shared_ptr_emplace(_Alloc __a, _Args&& ...__args)
: __data_(piecewise_construct, _VSTD::forward_as_tuple(__a),
_VSTD::forward_as_tuple(_VSTD::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:
_LIBCPP_CONSTEXPR shared_ptr() _NOEXCEPT;
_LIBCPP_CONSTEXPR shared_ptr(nullptr_t) _NOEXCEPT;
template<class _Yp,
class = typename enable_if
<
is_convertible<_Yp*, element_type*>::value
>::type
>
explicit shared_ptr(_Yp* __p);
template<class _Yp, class _Dp,
class = typename enable_if
<
is_convertible<_Yp*, element_type*>::value
>::type
>
shared_ptr(_Yp* __p, _Dp __d);
template<class _Yp, class _Dp, class _Alloc,
class = typename enable_if
<
is_convertible<_Yp*, element_type*>::value
>::type
>
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,
class = typename enable_if
<
is_convertible<_Yp*, element_type*>::value
>::type
>
shared_ptr(auto_ptr<_Yp>&& __r);
#else
template<class _Yp,
class = typename enable_if
<
is_convertible<_Yp*, element_type*>::value
>::type
>
shared_ptr(auto_ptr<_Yp> __r);
#endif
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Yp, class _Dp,
class = typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
>::type
>
shared_ptr(unique_ptr<_Yp, _Dp>&&,
typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
template <class _Yp, class _Dp,
class = typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
>::type
>
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,
class = typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
>::type
> shared_ptr(unique_ptr<_Yp, _Dp>,
typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
template <class _Yp, class _Dp,
class = typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
>::type
>
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>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
shared_ptr&
>::type
operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
shared_ptr& operator=(shared_ptr&& __r) _NOEXCEPT;
template<class _Yp>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
shared_ptr<_Tp>&
>::type
operator=(shared_ptr<_Yp>&& __r);
template<class _Yp>
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<_Yp*, element_type*>::value,
shared_ptr&
>::type
operator=(auto_ptr<_Yp>&& __r);
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Yp>
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<_Yp*, element_type*>::value,
shared_ptr&
>::type
operator=(auto_ptr<_Yp> __r);
#endif
template <class _Yp, class _Dp>
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value,
shared_ptr&
>::type
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
operator=(unique_ptr<_Yp, _Dp>&& __r);
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
operator=(unique_ptr<_Yp, _Dp> __r);
#endif
void swap(shared_ptr& __r) _NOEXCEPT;
void reset() _NOEXCEPT;
template<class _Yp>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
void
>::type
reset(_Yp* __p);
template<class _Yp, class _Dp>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
void
>::type
reset(_Yp* __p, _Dp __d);
template<class _Yp, class _Dp, class _Alloc>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
void
>::type
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
_LIBCPP_EXPLICIT operator bool() const _NOEXCEPT {return get() != 0;}
template <class _Up>
_LIBCPP_INLINE_VISIBILITY
bool owner_before(shared_ptr<_Up> const& __p) const
{return __cntrl_ < __p.__cntrl_;}
template <class _Up>
_LIBCPP_INLINE_VISIBILITY
bool owner_before(weak_ptr<_Up> const& __p) const
{return __cntrl_ < __p.__cntrl_;}
_LIBCPP_INLINE_VISIBILITY
bool
__owner_equivalent(const shared_ptr& __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
_LIBCPP_CONSTEXPR
shared_ptr<_Tp>::shared_ptr() _NOEXCEPT
: __ptr_(0),
__cntrl_(0)
{
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
shared_ptr<_Tp>::shared_ptr(nullptr_t) _NOEXCEPT
: __ptr_(0),
__cntrl_(0)
{
}
template<class _Tp>
template<class _Yp, class>
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, class>
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, class>
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, class>
#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, class>
#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, class>
#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, _VSTD::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, _VSTD::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
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
shared_ptr<_Tp>&
>::type
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(_VSTD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
shared_ptr<_Tp>&
>::type
shared_ptr<_Tp>::operator=(shared_ptr<_Yp>&& __r)
{
shared_ptr(_VSTD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<_Yp*, _Tp*>::value,
shared_ptr<_Tp>&
>::type
shared_ptr<_Tp>::operator=(auto_ptr<_Yp>&& __r)
{
shared_ptr(_VSTD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template <class _Yp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, _Tp*>::value,
shared_ptr<_Tp>&
>::type
shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp>&& __r)
{
shared_ptr(_VSTD::move(__r)).swap(*this);
return *this;
}
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<_Yp*, _Tp*>::value,
shared_ptr<_Tp>&
>::type
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
typename enable_if
<
!is_array<_Yp>::value &&
is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, _Tp*>::value,
shared_ptr<_Tp>&
>::type
shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp> __r)
{
shared_ptr(_VSTD::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
{
_VSTD::swap(__ptr_, __r.__ptr_);
_VSTD::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
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
void
>::type
shared_ptr<_Tp>::reset(_Yp* __p)
{
shared_ptr(__p).swap(*this);
}
template<class _Tp>
template<class _Yp, class _Dp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
void
>::type
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
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
void
>::type
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
typename enable_if
<
!is_array<_Tp>::value,
shared_ptr<_Tp>
>::type
make_shared(_Args&& ...__args)
{
return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
}
template<class _Tp, class _Alloc, class ..._Args>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_array<_Tp>::value,
shared_ptr<_Tp>
>::type
allocate_shared(const _Alloc& __a, _Args&& ...__args)
{
return shared_ptr<_Tp>::allocate_shared(__a, _VSTD::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
{
typedef typename common_type<_Tp*, _Up*>::type _V;
return less<_V>()(__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 __y < __x;
}
template<class _Tp, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
{
return !(__y < __x);
}
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>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
{
return !__x;
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
{
return !__x;
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
{
return static_cast<bool>(__x);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
{
return static_cast<bool>(__x);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
{
return less<_Tp*>()(__x.get(), nullptr);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
{
return less<_Tp*>()(nullptr, __x.get());
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
{
return nullptr < __x;
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
{
return __x < nullptr;
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
{
return !(nullptr < __x);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
{
return !(__x < nullptr);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
{
return !(__x < nullptr);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
{
return !(nullptr < __x);
}
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
typename enable_if
<
!is_array<_Tp>::value && !is_array<_Up>::value,
shared_ptr<_Tp>
>::type
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
typename enable_if
<
!is_array<_Tp>::value && !is_array<_Up>::value,
shared_ptr<_Tp>
>::type
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>
typename enable_if
<
is_array<_Tp>::value == is_array<_Up>::value,
shared_ptr<_Tp>
>::type
const_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
{
typedef typename remove_extent<_Tp>::type _RTp;
return shared_ptr<_Tp>(__r, const_cast<_RTp*>(__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:
_LIBCPP_CONSTEXPR 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;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
weak_ptr(weak_ptr&& __r) _NOEXCEPT;
template<class _Yp> weak_ptr(weak_ptr<_Yp>&& __r,
typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
_NOEXCEPT;
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
~weak_ptr();
weak_ptr& operator=(weak_ptr const& __r) _NOEXCEPT;
template<class _Yp>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
weak_ptr&
>::type
operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
weak_ptr& operator=(weak_ptr&& __r) _NOEXCEPT;
template<class _Yp>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
weak_ptr&
>::type
operator=(weak_ptr<_Yp>&& __r) _NOEXCEPT;
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Yp>
typename enable_if
<
is_convertible<_Yp*, element_type*>::value,
weak_ptr&
>::type
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
_LIBCPP_CONSTEXPR
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();
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>::weak_ptr(weak_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
weak_ptr<_Tp>::weak_ptr(weak_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>
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
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
weak_ptr<_Tp>&
>::type
weak_ptr<_Tp>::operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT
{
weak_ptr(__r).swap(*this);
return *this;
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
weak_ptr<_Tp>&
weak_ptr<_Tp>::operator=(weak_ptr&& __r) _NOEXCEPT
{
weak_ptr(_VSTD::move(__r)).swap(*this);
return *this;
}
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
weak_ptr<_Tp>&
>::type
weak_ptr<_Tp>::operator=(weak_ptr<_Yp>&& __r) _NOEXCEPT
{
weak_ptr(_VSTD::move(__r)).swap(*this);
return *this;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template<class _Tp>
template<class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_convertible<_Yp*, _Tp*>::value,
weak_ptr<_Tp>&
>::type
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
{
_VSTD::swap(__ptr_, __r.__ptr_);
_VSTD::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 _LIBCPP_CONSTEXPR
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());
}
};
template<class _CharT, class _Traits, class _Yp>
inline _LIBCPP_INLINE_VISIBILITY
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, shared_ptr<_Yp> const& __p);
#if __has_feature(cxx_atomic)
class __sp_mut
{
void* _;
public:
void lock() _NOEXCEPT;
void unlock() _NOEXCEPT;
private:
_LIBCPP_CONSTEXPR __sp_mut(void*) _NOEXCEPT;
__sp_mut(const __sp_mut&);
__sp_mut& operator=(const __sp_mut&);
friend __sp_mut& __get_sp_mut(const void*);
};
__sp_mut& __get_sp_mut(const void*);
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_is_lock_free(const shared_ptr<_Tp>*)
{
return false;
}
template <class _Tp>
shared_ptr<_Tp>
atomic_load(const shared_ptr<_Tp>* __p)
{
__sp_mut& __m = __get_sp_mut(__p);
__m.lock();
shared_ptr<_Tp> __q = *__p;
__m.unlock();
return __q;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
atomic_load_explicit(const shared_ptr<_Tp>* __p, memory_order)
{
return atomic_load(__p);
}
template <class _Tp>
void
atomic_store(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r)
{
__sp_mut& __m = __get_sp_mut(__p);
__m.lock();
__p->swap(__r);
__m.unlock();
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_store_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r, memory_order)
{
atomic_store(__p, __r);
}
template <class _Tp>
shared_ptr<_Tp>
atomic_exchange(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r)
{
__sp_mut& __m = __get_sp_mut(__p);
__m.lock();
__p->swap(__r);
__m.unlock();
return __r;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
shared_ptr<_Tp>
atomic_exchange_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r, memory_order)
{
return atomic_exchange(__p, __r);
}
template <class _Tp>
bool
atomic_compare_exchange_strong(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, shared_ptr<_Tp> __w)
{
__sp_mut& __m = __get_sp_mut(__p);
__m.lock();
if (__p->__owner_equivalent(*__v))
{
*__p = __w;
__m.unlock();
return true;
}
*__v = *__p;
__m.unlock();
return false;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_weak(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, shared_ptr<_Tp> __w)
{
return atomic_compare_exchange_strong(__p, __v, __w);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_strong_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v,
shared_ptr<_Tp> __w, memory_order, memory_order)
{
return atomic_compare_exchange_strong(__p, __v, __w);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_weak_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v,
shared_ptr<_Tp> __w, memory_order, memory_order)
{
return atomic_compare_exchange_weak(__p, __v, __w);
}
#endif // __has_feature(cxx_atomic)
//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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