diff options
Diffstat (limited to 'include/__split_buffer')
| -rw-r--r-- | include/__split_buffer | 650 |
1 files changed, 650 insertions, 0 deletions
diff --git a/include/__split_buffer b/include/__split_buffer new file mode 100644 index 000000000000..33ce42da31a4 --- /dev/null +++ b/include/__split_buffer @@ -0,0 +1,650 @@ +// -*- C++ -*- +#ifndef _LIBCPP_SPLIT_BUFFER +#define _LIBCPP_SPLIT_BUFFER + +#include <__config> +#include <type_traits> +#include <algorithm> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <bool> +class __split_buffer_common +{ +protected: + void __throw_length_error() const; + void __throw_out_of_range() const; +}; + +template <class _Tp, class _Allocator = allocator<_Tp> > +struct __split_buffer + : private __split_buffer_common<true> +{ +private: + __split_buffer(const __split_buffer&); + __split_buffer& operator=(const __split_buffer&); +public: + typedef _Tp value_type; + typedef _Allocator allocator_type; + typedef typename remove_reference<allocator_type>::type __alloc_rr; + typedef allocator_traits<__alloc_rr> __alloc_traits; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef typename __alloc_traits::size_type size_type; + typedef typename __alloc_traits::difference_type difference_type; + typedef typename __alloc_traits::pointer pointer; + typedef typename __alloc_traits::const_pointer const_pointer; + typedef pointer iterator; + typedef const_pointer const_iterator; + + pointer __first_; + pointer __begin_; + pointer __end_; + __compressed_pair<pointer, allocator_type> __end_cap_; + + typedef typename add_lvalue_reference<allocator_type>::type __alloc_ref; + typedef typename add_lvalue_reference<allocator_type>::type __alloc_const_ref; + + _LIBCPP_INLINE_VISIBILITY __alloc_rr& __alloc() _NOEXCEPT {return __end_cap_.second();} + _LIBCPP_INLINE_VISIBILITY const __alloc_rr& __alloc() const _NOEXCEPT {return __end_cap_.second();} + _LIBCPP_INLINE_VISIBILITY pointer& __end_cap() _NOEXCEPT {return __end_cap_.first();} + _LIBCPP_INLINE_VISIBILITY const pointer& __end_cap() const _NOEXCEPT {return __end_cap_.first();} + + __split_buffer() + _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value); + explicit __split_buffer(__alloc_rr& __a); + explicit __split_buffer(const __alloc_rr& __a); + __split_buffer(size_type __cap, size_type __start, __alloc_rr& __a); + ~__split_buffer(); + +#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES + __split_buffer(__split_buffer&& __c) + _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value); + __split_buffer(__split_buffer&& __c, const __alloc_rr& __a); + __split_buffer& operator=(__split_buffer&& __c) + _NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value) || + !__alloc_traits::propagate_on_container_move_assignment::value); +#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES + + _LIBCPP_INLINE_VISIBILITY iterator begin() _NOEXCEPT {return __begin_;} + _LIBCPP_INLINE_VISIBILITY const_iterator begin() const _NOEXCEPT {return __begin_;} + _LIBCPP_INLINE_VISIBILITY iterator end() _NOEXCEPT {return __end_;} + _LIBCPP_INLINE_VISIBILITY const_iterator end() const _NOEXCEPT {return __end_;} + + _LIBCPP_INLINE_VISIBILITY + void clear() _NOEXCEPT + {__destruct_at_end(__begin_);} + _LIBCPP_INLINE_VISIBILITY size_type size() const {return static_cast<size_type>(__end_ - __begin_);} + _LIBCPP_INLINE_VISIBILITY bool empty() const {return __end_ == __begin_;} + _LIBCPP_INLINE_VISIBILITY size_type capacity() const {return static_cast<size_type>(__end_cap() - __first_);} + _LIBCPP_INLINE_VISIBILITY size_type __front_spare() const {return static_cast<size_type>(__begin_ - __first_);} + _LIBCPP_INLINE_VISIBILITY size_type __back_spare() const {return static_cast<size_type>(__end_cap() - __end_);} + + _LIBCPP_INLINE_VISIBILITY reference front() {return *__begin_;} + _LIBCPP_INLINE_VISIBILITY const_reference front() const {return *__begin_;} + _LIBCPP_INLINE_VISIBILITY reference back() {return *(__end_ - 1);} + _LIBCPP_INLINE_VISIBILITY const_reference back() const {return *(__end_ - 1);} + + void reserve(size_type __n); + void shrink_to_fit() _NOEXCEPT; + void push_front(const_reference __x); + void push_back(const_reference __x); +#if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) + void push_front(value_type&& __x); + void push_back(value_type&& __x); +#if !defined(_LIBCPP_HAS_NO_VARIADICS) + template <class... _Args> + void emplace_back(_Args&&... __args); +#endif // !defined(_LIBCPP_HAS_NO_VARIADICS) +#endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) + + _LIBCPP_INLINE_VISIBILITY void pop_front() {__destruct_at_begin(__begin_+1);} + _LIBCPP_INLINE_VISIBILITY void pop_back() {__destruct_at_end(__end_-1);} + + void __construct_at_end(size_type __n); + void __construct_at_end(size_type __n, const_reference __x); + template <class _InputIter> + typename enable_if + < + __is_input_iterator<_InputIter>::value && + !__is_forward_iterator<_InputIter>::value, + void + >::type + __construct_at_end(_InputIter __first, _InputIter __last); + template <class _ForwardIterator> + typename enable_if + < + __is_forward_iterator<_ForwardIterator>::value, + void + >::type + __construct_at_end(_ForwardIterator __first, _ForwardIterator __last); + + _LIBCPP_INLINE_VISIBILITY void __destruct_at_begin(pointer __new_begin) + {__destruct_at_begin(__new_begin, is_trivially_destructible<value_type>());} + void __destruct_at_begin(pointer __new_begin, false_type); + void __destruct_at_begin(pointer __new_begin, true_type); + + _LIBCPP_INLINE_VISIBILITY + void __destruct_at_end(pointer __new_last) _NOEXCEPT + {__destruct_at_end(__new_last, is_trivially_destructible<value_type>());} + void __destruct_at_end(pointer __new_last, false_type) _NOEXCEPT; + void __destruct_at_end(pointer __new_last, true_type) _NOEXCEPT; + + void swap(__split_buffer& __x) + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value|| + __is_nothrow_swappable<__alloc_rr>::value); + + bool __invariants() const; + +private: + _LIBCPP_INLINE_VISIBILITY + void __move_assign_alloc(__split_buffer& __c, true_type) + _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) + { + __alloc() = _VSTD::move(__c.__alloc()); + } + + _LIBCPP_INLINE_VISIBILITY + void __move_assign_alloc(__split_buffer& __c, false_type) _NOEXCEPT + {} + + _LIBCPP_INLINE_VISIBILITY + static void __swap_alloc(__alloc_rr& __x, __alloc_rr& __y) + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value|| + __is_nothrow_swappable<__alloc_rr>::value) + {__swap_alloc(__x, __y, integral_constant<bool, + __alloc_traits::propagate_on_container_swap::value>());} + + _LIBCPP_INLINE_VISIBILITY + static void __swap_alloc(__alloc_rr& __x, __alloc_rr& __y, true_type) + _NOEXCEPT_(__is_nothrow_swappable<__alloc_rr>::value) + { + using _VSTD::swap; + swap(__x, __y); + } + + _LIBCPP_INLINE_VISIBILITY + static void __swap_alloc(__alloc_rr& __x, __alloc_rr& __y, false_type) _NOEXCEPT + {} +}; + +template <class _Tp, class _Allocator> +bool +__split_buffer<_Tp, _Allocator>::__invariants() const +{ + if (__first_ == nullptr) + { + if (__begin_ != nullptr) + return false; + if (__end_ != nullptr) + return false; + if (__end_cap() != nullptr) + return false; + } + else + { + if (__begin_ < __first_) + return false; + if (__end_ < __begin_) + return false; + if (__end_cap() < __end_) + return false; + } + return true; +} + +// Default constructs __n objects starting at __end_ +// throws if construction throws +// Precondition: __n > 0 +// Precondition: size() + __n <= capacity() +// Postcondition: size() == size() + __n +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n) +{ + __alloc_rr& __a = this->__alloc(); + do + { + __alloc_traits::construct(__a, _VSTD::__to_raw_pointer(this->__end_)); + ++this->__end_; + --__n; + } while (__n > 0); +} + +// Copy constructs __n objects starting at __end_ from __x +// throws if construction throws +// Precondition: __n > 0 +// Precondition: size() + __n <= capacity() +// Postcondition: size() == old size() + __n +// Postcondition: [i] == __x for all i in [size() - __n, __n) +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x) +{ + __alloc_rr& __a = this->__alloc(); + do + { + __alloc_traits::construct(__a, _VSTD::__to_raw_pointer(this->__end_), __x); + ++this->__end_; + --__n; + } while (__n > 0); +} + +template <class _Tp, class _Allocator> +template <class _InputIter> +typename enable_if +< + __is_input_iterator<_InputIter>::value && + !__is_forward_iterator<_InputIter>::value, + void +>::type +__split_buffer<_Tp, _Allocator>::__construct_at_end(_InputIter __first, _InputIter __last) +{ + __alloc_rr& __a = this->__alloc(); + for (; __first != __last; ++__first) + { + if (__end_ == __end_cap()) + { + size_type __old_cap = __end_cap() - __first_; + size_type __new_cap = _VSTD::max<size_type>(2 * __old_cap, 8); + __split_buffer __buf(__new_cap, 0, __a); + for (pointer __p = __begin_; __p != __end_; ++__p, ++__buf.__end_) + __alloc_traits::construct(__buf.__alloc(), + _VSTD::__to_raw_pointer(__buf.__end_), _VSTD::move(*__p)); + swap(__buf); + } + __alloc_traits::construct(__a, _VSTD::__to_raw_pointer(this->__end_), *__first); + ++this->__end_; + } +} + +template <class _Tp, class _Allocator> +template <class _ForwardIterator> +typename enable_if +< + __is_forward_iterator<_ForwardIterator>::value, + void +>::type +__split_buffer<_Tp, _Allocator>::__construct_at_end(_ForwardIterator __first, _ForwardIterator __last) +{ + __alloc_rr& __a = this->__alloc(); + for (; __first != __last; ++__first) + { + __alloc_traits::construct(__a, _VSTD::__to_raw_pointer(this->__end_), *__first); + ++this->__end_; + } +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +void +__split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, false_type) +{ + while (__begin_ < __new_begin) + __alloc_traits::destroy(__alloc(), __begin_++); +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +void +__split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, true_type) +{ + __begin_ = __new_begin; +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +void +__split_buffer<_Tp, _Allocator>::__destruct_at_end(pointer __new_last, false_type) _NOEXCEPT +{ + while (__new_last < __end_) + __alloc_traits::destroy(__alloc(), --__end_); +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +void +__split_buffer<_Tp, _Allocator>::__destruct_at_end(pointer __new_last, true_type) _NOEXCEPT +{ + __end_ = __new_last; +} + +template <class _Tp, class _Allocator> +__split_buffer<_Tp, _Allocator>::__split_buffer(size_type __cap, size_type __start, __alloc_rr& __a) + : __end_cap_(0, __a) +{ + __first_ = __cap != 0 ? __alloc_traits::allocate(__alloc(), __cap) : nullptr; + __begin_ = __end_ = __first_ + __start; + __end_cap() = __first_ + __cap; +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +__split_buffer<_Tp, _Allocator>::__split_buffer() + _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) + : __first_(0), __begin_(0), __end_(0), __end_cap_(0) +{ +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +__split_buffer<_Tp, _Allocator>::__split_buffer(__alloc_rr& __a) + : __first_(0), __begin_(0), __end_(0), __end_cap_(0, __a) +{ +} + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +__split_buffer<_Tp, _Allocator>::__split_buffer(const __alloc_rr& __a) + : __first_(0), __begin_(0), __end_(0), __end_cap_(0, __a) +{ +} + +template <class _Tp, class _Allocator> +__split_buffer<_Tp, _Allocator>::~__split_buffer() +{ + clear(); + if (__first_) + __alloc_traits::deallocate(__alloc(), __first_, capacity()); +} + +#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class _Tp, class _Allocator> +__split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c) + _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) + : __first_(_VSTD::move(__c.__first_)), + __begin_(_VSTD::move(__c.__begin_)), + __end_(_VSTD::move(__c.__end_)), + __end_cap_(_VSTD::move(__c.__end_cap_)) +{ + __c.__first_ = nullptr; + __c.__begin_ = nullptr; + __c.__end_ = nullptr; + __c.__end_cap() = nullptr; +} + +template <class _Tp, class _Allocator> +__split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c, const __alloc_rr& __a) + : __end_cap_(__a) +{ + if (__a == __c.__alloc()) + { + __first_ = __c.__first_; + __begin_ = __c.__begin_; + __end_ = __c.__end_; + __end_cap() = __c.__end_cap(); + __c.__first_ = nullptr; + __c.__begin_ = nullptr; + __c.__end_ = nullptr; + __c.__end_cap() = nullptr; + } + else + { + size_type __cap = __c.size(); + __first_ = __alloc_traits::allocate(__alloc(), __cap); + __begin_ = __end_ = __first_; + __end_cap() = __first_ + __cap; + typedef move_iterator<iterator> _I; + __construct_at_end(_I(__c.begin()), _I(__c.end())); + } +} + +template <class _Tp, class _Allocator> +__split_buffer<_Tp, _Allocator>& +__split_buffer<_Tp, _Allocator>::operator=(__split_buffer&& __c) + _NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value) || + !__alloc_traits::propagate_on_container_move_assignment::value) +{ + clear(); + shrink_to_fit(); + __first_ = __c.__first_; + __begin_ = __c.__begin_; + __end_ = __c.__end_; + __end_cap() = __c.__end_cap(); + __move_assign_alloc(__c, + integral_constant<bool, + __alloc_traits::propagate_on_container_move_assignment::value>()); + __c.__first_ = __c.__begin_ = __c.__end_ = __c.__end_cap() = nullptr; + return *this; +} + +#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::swap(__split_buffer& __x) + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value|| + __is_nothrow_swappable<__alloc_rr>::value) +{ + _VSTD::swap(__first_, __x.__first_); + _VSTD::swap(__begin_, __x.__begin_); + _VSTD::swap(__end_, __x.__end_); + _VSTD::swap(__end_cap(), __x.__end_cap()); + __swap_alloc(__alloc(), __x.__alloc()); +} + +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::reserve(size_type __n) +{ + if (__n < capacity()) + { + __split_buffer<value_type, __alloc_rr&> __t(__n, 0, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); + } +} + +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::shrink_to_fit() _NOEXCEPT +{ + if (capacity() > size()) + { +#ifndef _LIBCPP_NO_EXCEPTIONS + try + { +#endif // _LIBCPP_NO_EXCEPTIONS + __split_buffer<value_type, __alloc_rr&> __t(size(), 0, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + __t.__end_ = __t.__begin_ + (__end_ - __begin_); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); +#ifndef _LIBCPP_NO_EXCEPTIONS + } + catch (...) + { + } +#endif // _LIBCPP_NO_EXCEPTIONS + } +} + +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::push_front(const_reference __x) +{ + if (__begin_ == __first_) + { + if (__end_ < __end_cap()) + { + difference_type __d = __end_cap() - __end_; + __d = (__d + 1) / 2; + __begin_ = _VSTD::move_backward(__begin_, __end_, __end_ + __d); + __end_ += __d; + } + else + { + size_type __c = max<size_type>(2 * (__end_cap() - __first_), 1); + __split_buffer<value_type, __alloc_rr&> __t(__c, (__c + 3) / 4, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); + } + } + __alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__begin_-1), __x); + --__begin_; +} + +#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::push_front(value_type&& __x) +{ + if (__begin_ == __first_) + { + if (__end_ < __end_cap()) + { + difference_type __d = __end_cap() - __end_; + __d = (__d + 1) / 2; + __begin_ = _VSTD::move_backward(__begin_, __end_, __end_ + __d); + __end_ += __d; + } + else + { + size_type __c = max<size_type>(2 * (__end_cap() - __first_), 1); + __split_buffer<value_type, __alloc_rr&> __t(__c, (__c + 3) / 4, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); + } + } + __alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__begin_-1), + _VSTD::move(__x)); + --__begin_; +} + +#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +void +__split_buffer<_Tp, _Allocator>::push_back(const_reference __x) +{ + if (__end_ == __end_cap()) + { + if (__begin_ > __first_) + { + difference_type __d = __begin_ - __first_; + __d = (__d + 1) / 2; + __end_ = _VSTD::move(__begin_, __end_, __begin_ - __d); + __begin_ -= __d; + } + else + { + size_type __c = max<size_type>(2 * (__end_cap() - __first_), 1); + __split_buffer<value_type, __alloc_rr&> __t(__c, __c / 4, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); + } + } + __alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_), __x); + ++__end_; +} + +#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class _Tp, class _Allocator> +void +__split_buffer<_Tp, _Allocator>::push_back(value_type&& __x) +{ + if (__end_ == __end_cap()) + { + if (__begin_ > __first_) + { + difference_type __d = __begin_ - __first_; + __d = (__d + 1) / 2; + __end_ = _VSTD::move(__begin_, __end_, __begin_ - __d); + __begin_ -= __d; + } + else + { + size_type __c = max<size_type>(2 * (__end_cap() - __first_), 1); + __split_buffer<value_type, __alloc_rr&> __t(__c, __c / 4, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); + } + } + __alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_), + _VSTD::move(__x)); + ++__end_; +} + +#ifndef _LIBCPP_HAS_NO_VARIADICS + +template <class _Tp, class _Allocator> +template <class... _Args> +void +__split_buffer<_Tp, _Allocator>::emplace_back(_Args&&... __args) +{ + if (__end_ == __end_cap()) + { + if (__begin_ > __first_) + { + difference_type __d = __begin_ - __first_; + __d = (__d + 1) / 2; + __end_ = _VSTD::move(__begin_, __end_, __begin_ - __d); + __begin_ -= __d; + } + else + { + size_type __c = max<size_type>(2 * (__end_cap() - __first_), 1); + __split_buffer<value_type, __alloc_rr&> __t(__c, __c / 4, __alloc()); + __t.__construct_at_end(move_iterator<pointer>(__begin_), + move_iterator<pointer>(__end_)); + _VSTD::swap(__first_, __t.__first_); + _VSTD::swap(__begin_, __t.__begin_); + _VSTD::swap(__end_, __t.__end_); + _VSTD::swap(__end_cap(), __t.__end_cap()); + } + } + __alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_), + _VSTD::forward<_Args>(__args)...); + ++__end_; +} + +#endif // _LIBCPP_HAS_NO_VARIADICS + +#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class _Tp, class _Allocator> +_LIBCPP_INLINE_VISIBILITY inline +void +swap(__split_buffer<_Tp, _Allocator>& __x, __split_buffer<_Tp, _Allocator>& __y) + _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) +{ + __x.swap(__y); +} + + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP_SPLIT_BUFFER |