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//===-------------------------- scoped_allocator --------------------------===//
//
// 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_SCOPED_ALLOCATOR
#define _LIBCPP_SCOPED_ALLOCATOR
/*
scoped_allocator synopsis
namespace std
{
template <class OuterAlloc, class... InnerAllocs>
class scoped_allocator_adaptor : public OuterAlloc
{
typedef allocator_traits<OuterAlloc> OuterTraits; // exposition only
scoped_allocator_adaptor<InnerAllocs...> inner; // exposition only
public:
typedef OuterAlloc outer_allocator_type;
typedef see below inner_allocator_type;
typedef typename OuterTraits::value_type value_type;
typedef typename OuterTraits::size_type size_type;
typedef typename OuterTraits::difference_type difference_type;
typedef typename OuterTraits::pointer pointer;
typedef typename OuterTraits::const_pointer const_pointer;
typedef typename OuterTraits::void_pointer void_pointer;
typedef typename OuterTraits::const_void_pointer const_void_pointer;
typedef see below propagate_on_container_copy_assignment;
typedef see below propagate_on_container_move_assignment;
typedef see below propagate_on_container_swap;
typedef see below is_always_equal;
template <class Tp>
struct rebind
{
typedef scoped_allocator_adaptor<
OuterTraits::template rebind_alloc<Tp>, InnerAllocs...> other;
};
scoped_allocator_adaptor();
template <class OuterA2>
scoped_allocator_adaptor(OuterA2&& outerAlloc,
const InnerAllocs&... innerAllocs) noexcept;
scoped_allocator_adaptor(const scoped_allocator_adaptor& other) noexcept;
scoped_allocator_adaptor(scoped_allocator_adaptor&& other) noexcept;
template <class OuterA2>
scoped_allocator_adaptor(const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& other) noexcept;
template <class OuterA2>
scoped_allocator_adaptor(const scoped_allocator_adaptor<OuterA2, InnerAllocs...>&& other) noexcept;
scoped_allocator_adaptor& operator=(const scoped_allocator_adaptor&) = default;
scoped_allocator_adaptor& operator=(scoped_allocator_adaptor&&) = default;
~scoped_allocator_adaptor();
inner_allocator_type& inner_allocator() noexcept;
const inner_allocator_type& inner_allocator() const noexcept;
outer_allocator_type& outer_allocator() noexcept;
const outer_allocator_type& outer_allocator() const noexcept;
pointer allocate(size_type n); // [[nodiscard]] in C++20
pointer allocate(size_type n, const_void_pointer hint); // [[nodiscard]] in C++20
void deallocate(pointer p, size_type n) noexcept;
size_type max_size() const;
template <class T, class... Args> void construct(T* p, Args&& args);
template <class T1, class T2, class... Args1, class... Args2>
void construct(pair<T1, T2>* p, piecewise_construct t, tuple<Args1...> x,
tuple<Args2...> y);
template <class T1, class T2>
void construct(pair<T1, T2>* p);
template <class T1, class T2, class U, class V>
void construct(pair<T1, T2>* p, U&& x, V&& y);
template <class T1, class T2, class U, class V>
void construct(pair<T1, T2>* p, const pair<U, V>& x);
template <class T1, class T2, class U, class V>
void construct(pair<T1, T2>* p, pair<U, V>&& x);
template <class T> void destroy(T* p);
template <class T> void destroy(T* p) noexcept;
scoped_allocator_adaptor select_on_container_copy_construction() const noexcept;
};
template <class OuterA1, class OuterA2, class... InnerAllocs>
bool
operator==(const scoped_allocator_adaptor<OuterA1, InnerAllocs...>& a,
const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& b) noexcept;
template <class OuterA1, class OuterA2, class... InnerAllocs>
bool
operator!=(const scoped_allocator_adaptor<OuterA1, InnerAllocs...>& a,
const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& b) noexcept;
} // std
*/
#include <__config>
#include <memory>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if !defined(_LIBCPP_CXX03_LANG)
// scoped_allocator_adaptor
template <class ..._Allocs>
class scoped_allocator_adaptor;
template <class ..._Allocs> struct __get_poc_copy_assignment;
template <class _A0>
struct __get_poc_copy_assignment<_A0>
{
static const bool value = allocator_traits<_A0>::
propagate_on_container_copy_assignment::value;
};
template <class _A0, class ..._Allocs>
struct __get_poc_copy_assignment<_A0, _Allocs...>
{
static const bool value =
allocator_traits<_A0>::propagate_on_container_copy_assignment::value ||
__get_poc_copy_assignment<_Allocs...>::value;
};
template <class ..._Allocs> struct __get_poc_move_assignment;
template <class _A0>
struct __get_poc_move_assignment<_A0>
{
static const bool value = allocator_traits<_A0>::
propagate_on_container_move_assignment::value;
};
template <class _A0, class ..._Allocs>
struct __get_poc_move_assignment<_A0, _Allocs...>
{
static const bool value =
allocator_traits<_A0>::propagate_on_container_move_assignment::value ||
__get_poc_move_assignment<_Allocs...>::value;
};
template <class ..._Allocs> struct __get_poc_swap;
template <class _A0>
struct __get_poc_swap<_A0>
{
static const bool value = allocator_traits<_A0>::
propagate_on_container_swap::value;
};
template <class _A0, class ..._Allocs>
struct __get_poc_swap<_A0, _Allocs...>
{
static const bool value =
allocator_traits<_A0>::propagate_on_container_swap::value ||
__get_poc_swap<_Allocs...>::value;
};
template <class ..._Allocs> struct __get_is_always_equal;
template <class _A0>
struct __get_is_always_equal<_A0>
{
static const bool value = allocator_traits<_A0>::is_always_equal::value;
};
template <class _A0, class ..._Allocs>
struct __get_is_always_equal<_A0, _Allocs...>
{
static const bool value =
allocator_traits<_A0>::is_always_equal::value &&
__get_is_always_equal<_Allocs...>::value;
};
template <class ..._Allocs>
class __scoped_allocator_storage;
template <class _OuterAlloc, class... _InnerAllocs>
class __scoped_allocator_storage<_OuterAlloc, _InnerAllocs...>
: public _OuterAlloc
{
typedef _OuterAlloc outer_allocator_type;
protected:
typedef scoped_allocator_adaptor<_InnerAllocs...> inner_allocator_type;
private:
inner_allocator_type __inner_;
protected:
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage() _NOEXCEPT {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(_OuterA2&& __outerAlloc,
const _InnerAllocs& ...__innerAllocs) _NOEXCEPT
: outer_allocator_type(_VSTD::forward<_OuterA2>(__outerAlloc)),
__inner_(__innerAllocs...) {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, const _OuterA2&>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(
const __scoped_allocator_storage<_OuterA2, _InnerAllocs...>& __other) _NOEXCEPT
: outer_allocator_type(__other.outer_allocator()),
__inner_(__other.inner_allocator()) {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(
__scoped_allocator_storage<_OuterA2, _InnerAllocs...>&& __other) _NOEXCEPT
: outer_allocator_type(_VSTD::move(__other.outer_allocator())),
__inner_(_VSTD::move(__other.inner_allocator())) {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(_OuterA2&& __o,
const inner_allocator_type& __i) _NOEXCEPT
: outer_allocator_type(_VSTD::forward<_OuterA2>(__o)),
__inner_(__i)
{
}
_LIBCPP_INLINE_VISIBILITY
inner_allocator_type& inner_allocator() _NOEXCEPT {return __inner_;}
_LIBCPP_INLINE_VISIBILITY
const inner_allocator_type& inner_allocator() const _NOEXCEPT {return __inner_;}
_LIBCPP_INLINE_VISIBILITY
outer_allocator_type& outer_allocator() _NOEXCEPT
{return static_cast<outer_allocator_type&>(*this);}
_LIBCPP_INLINE_VISIBILITY
const outer_allocator_type& outer_allocator() const _NOEXCEPT
{return static_cast<const outer_allocator_type&>(*this);}
scoped_allocator_adaptor<outer_allocator_type, _InnerAllocs...>
_LIBCPP_INLINE_VISIBILITY
select_on_container_copy_construction() const _NOEXCEPT
{
return scoped_allocator_adaptor<outer_allocator_type, _InnerAllocs...>
(
allocator_traits<outer_allocator_type>::
select_on_container_copy_construction(outer_allocator()),
allocator_traits<inner_allocator_type>::
select_on_container_copy_construction(inner_allocator())
);
}
template <class...> friend class __scoped_allocator_storage;
};
template <class _OuterAlloc>
class __scoped_allocator_storage<_OuterAlloc>
: public _OuterAlloc
{
typedef _OuterAlloc outer_allocator_type;
protected:
typedef scoped_allocator_adaptor<_OuterAlloc> inner_allocator_type;
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage() _NOEXCEPT {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(_OuterA2&& __outerAlloc) _NOEXCEPT
: outer_allocator_type(_VSTD::forward<_OuterA2>(__outerAlloc)) {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, const _OuterA2&>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(
const __scoped_allocator_storage<_OuterA2>& __other) _NOEXCEPT
: outer_allocator_type(__other.outer_allocator()) {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
__scoped_allocator_storage(
__scoped_allocator_storage<_OuterA2>&& __other) _NOEXCEPT
: outer_allocator_type(_VSTD::move(__other.outer_allocator())) {}
_LIBCPP_INLINE_VISIBILITY
inner_allocator_type& inner_allocator() _NOEXCEPT
{return static_cast<inner_allocator_type&>(*this);}
_LIBCPP_INLINE_VISIBILITY
const inner_allocator_type& inner_allocator() const _NOEXCEPT
{return static_cast<const inner_allocator_type&>(*this);}
_LIBCPP_INLINE_VISIBILITY
outer_allocator_type& outer_allocator() _NOEXCEPT
{return static_cast<outer_allocator_type&>(*this);}
_LIBCPP_INLINE_VISIBILITY
const outer_allocator_type& outer_allocator() const _NOEXCEPT
{return static_cast<const outer_allocator_type&>(*this);}
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor<outer_allocator_type>
select_on_container_copy_construction() const _NOEXCEPT
{return scoped_allocator_adaptor<outer_allocator_type>(
allocator_traits<outer_allocator_type>::
select_on_container_copy_construction(outer_allocator())
);}
__scoped_allocator_storage(const outer_allocator_type& __o,
const inner_allocator_type& __i) _NOEXCEPT;
template <class...> friend class __scoped_allocator_storage;
};
// __outermost
template <class _Alloc>
decltype(declval<_Alloc>().outer_allocator(), true_type())
__has_outer_allocator_test(_Alloc&& __a);
template <class _Alloc>
false_type
__has_outer_allocator_test(const volatile _Alloc& __a);
template <class _Alloc>
struct __has_outer_allocator
: public common_type
<
decltype(__has_outer_allocator_test(declval<_Alloc&>()))
>::type
{
};
template <class _Alloc, bool = __has_outer_allocator<_Alloc>::value>
struct __outermost
{
typedef _Alloc type;
_LIBCPP_INLINE_VISIBILITY
type& operator()(type& __a) const _NOEXCEPT {return __a;}
};
template <class _Alloc>
struct __outermost<_Alloc, true>
{
typedef typename remove_reference
<
decltype(_VSTD::declval<_Alloc>().outer_allocator())
>::type _OuterAlloc;
typedef typename __outermost<_OuterAlloc>::type type;
_LIBCPP_INLINE_VISIBILITY
type& operator()(_Alloc& __a) const _NOEXCEPT
{return __outermost<_OuterAlloc>()(__a.outer_allocator());}
};
template <class _OuterAlloc, class... _InnerAllocs>
class _LIBCPP_TEMPLATE_VIS scoped_allocator_adaptor<_OuterAlloc, _InnerAllocs...>
: public __scoped_allocator_storage<_OuterAlloc, _InnerAllocs...>
{
typedef __scoped_allocator_storage<_OuterAlloc, _InnerAllocs...> base;
typedef allocator_traits<_OuterAlloc> _OuterTraits;
public:
typedef _OuterAlloc outer_allocator_type;
typedef typename base::inner_allocator_type inner_allocator_type;
typedef typename _OuterTraits::size_type size_type;
typedef typename _OuterTraits::difference_type difference_type;
typedef typename _OuterTraits::pointer pointer;
typedef typename _OuterTraits::const_pointer const_pointer;
typedef typename _OuterTraits::void_pointer void_pointer;
typedef typename _OuterTraits::const_void_pointer const_void_pointer;
typedef integral_constant
<
bool,
__get_poc_copy_assignment<outer_allocator_type,
_InnerAllocs...>::value
> propagate_on_container_copy_assignment;
typedef integral_constant
<
bool,
__get_poc_move_assignment<outer_allocator_type,
_InnerAllocs...>::value
> propagate_on_container_move_assignment;
typedef integral_constant
<
bool,
__get_poc_swap<outer_allocator_type, _InnerAllocs...>::value
> propagate_on_container_swap;
typedef integral_constant
<
bool,
__get_is_always_equal<outer_allocator_type, _InnerAllocs...>::value
> is_always_equal;
template <class _Tp>
struct rebind
{
typedef scoped_allocator_adaptor
<
typename _OuterTraits::template rebind_alloc<_Tp>, _InnerAllocs...
> other;
};
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor() _NOEXCEPT {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor(_OuterA2&& __outerAlloc,
const _InnerAllocs& ...__innerAllocs) _NOEXCEPT
: base(_VSTD::forward<_OuterA2>(__outerAlloc), __innerAllocs...) {}
// scoped_allocator_adaptor(const scoped_allocator_adaptor& __other) = default;
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, const _OuterA2&>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor(
const scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>& __other) _NOEXCEPT
: base(__other) {}
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor(
scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>&& __other) _NOEXCEPT
: base(_VSTD::move(__other)) {}
// scoped_allocator_adaptor& operator=(const scoped_allocator_adaptor&) = default;
// scoped_allocator_adaptor& operator=(scoped_allocator_adaptor&&) = default;
// ~scoped_allocator_adaptor() = default;
_LIBCPP_INLINE_VISIBILITY
inner_allocator_type& inner_allocator() _NOEXCEPT
{return base::inner_allocator();}
_LIBCPP_INLINE_VISIBILITY
const inner_allocator_type& inner_allocator() const _NOEXCEPT
{return base::inner_allocator();}
_LIBCPP_INLINE_VISIBILITY
outer_allocator_type& outer_allocator() _NOEXCEPT
{return base::outer_allocator();}
_LIBCPP_INLINE_VISIBILITY
const outer_allocator_type& outer_allocator() const _NOEXCEPT
{return base::outer_allocator();}
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
pointer allocate(size_type __n)
{return allocator_traits<outer_allocator_type>::
allocate(outer_allocator(), __n);}
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
pointer allocate(size_type __n, const_void_pointer __hint)
{return allocator_traits<outer_allocator_type>::
allocate(outer_allocator(), __n, __hint);}
_LIBCPP_INLINE_VISIBILITY
void deallocate(pointer __p, size_type __n) _NOEXCEPT
{allocator_traits<outer_allocator_type>::
deallocate(outer_allocator(), __p, __n);}
_LIBCPP_INLINE_VISIBILITY
size_type max_size() const
{return allocator_traits<outer_allocator_type>::max_size(outer_allocator());}
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
void construct(_Tp* __p, _Args&& ...__args)
{__construct(__uses_alloc_ctor<_Tp, inner_allocator_type&, _Args...>(),
__p, _VSTD::forward<_Args>(__args)...);}
template <class _T1, class _T2, class... _Args1, class... _Args2>
void construct(pair<_T1, _T2>* __p, piecewise_construct_t,
tuple<_Args1...> __x, tuple<_Args2...> __y)
{
typedef __outermost<outer_allocator_type> _OM;
allocator_traits<typename _OM::type>::construct(
_OM()(outer_allocator()), __p, piecewise_construct
, __transform_tuple(
typename __uses_alloc_ctor<
_T1, inner_allocator_type&, _Args1...
>::type()
, _VSTD::move(__x)
, typename __make_tuple_indices<sizeof...(_Args1)>::type{}
)
, __transform_tuple(
typename __uses_alloc_ctor<
_T2, inner_allocator_type&, _Args2...
>::type()
, _VSTD::move(__y)
, typename __make_tuple_indices<sizeof...(_Args2)>::type{}
)
);
}
template <class _T1, class _T2>
void construct(pair<_T1, _T2>* __p)
{ construct(__p, piecewise_construct, tuple<>{}, tuple<>{}); }
template <class _T1, class _T2, class _Up, class _Vp>
void construct(pair<_T1, _T2>* __p, _Up&& __x, _Vp&& __y) {
construct(__p, piecewise_construct,
_VSTD::forward_as_tuple(_VSTD::forward<_Up>(__x)),
_VSTD::forward_as_tuple(_VSTD::forward<_Vp>(__y)));
}
template <class _T1, class _T2, class _Up, class _Vp>
void construct(pair<_T1, _T2>* __p, const pair<_Up, _Vp>& __x) {
construct(__p, piecewise_construct,
_VSTD::forward_as_tuple(__x.first),
_VSTD::forward_as_tuple(__x.second));
}
template <class _T1, class _T2, class _Up, class _Vp>
void construct(pair<_T1, _T2>* __p, pair<_Up, _Vp>&& __x) {
construct(__p, piecewise_construct,
_VSTD::forward_as_tuple(_VSTD::forward<_Up>(__x.first)),
_VSTD::forward_as_tuple(_VSTD::forward<_Vp>(__x.second)));
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
void destroy(_Tp* __p)
{
typedef __outermost<outer_allocator_type> _OM;
allocator_traits<typename _OM::type>::
destroy(_OM()(outer_allocator()), __p);
}
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor select_on_container_copy_construction() const _NOEXCEPT
{return base::select_on_container_copy_construction();}
private:
template <class _OuterA2,
class = typename enable_if<
is_constructible<outer_allocator_type, _OuterA2>::value
>::type>
_LIBCPP_INLINE_VISIBILITY
scoped_allocator_adaptor(_OuterA2&& __o,
const inner_allocator_type& __i) _NOEXCEPT
: base(_VSTD::forward<_OuterA2>(__o), __i) {}
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
void __construct(integral_constant<int, 0>, _Tp* __p, _Args&& ...__args)
{
typedef __outermost<outer_allocator_type> _OM;
allocator_traits<typename _OM::type>::construct
(
_OM()(outer_allocator()),
__p,
_VSTD::forward<_Args>(__args)...
);
}
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
void __construct(integral_constant<int, 1>, _Tp* __p, _Args&& ...__args)
{
typedef __outermost<outer_allocator_type> _OM;
allocator_traits<typename _OM::type>::construct
(
_OM()(outer_allocator()),
__p, allocator_arg, inner_allocator(),
_VSTD::forward<_Args>(__args)...
);
}
template <class _Tp, class... _Args>
_LIBCPP_INLINE_VISIBILITY
void __construct(integral_constant<int, 2>, _Tp* __p, _Args&& ...__args)
{
typedef __outermost<outer_allocator_type> _OM;
allocator_traits<typename _OM::type>::construct
(
_OM()(outer_allocator()),
__p,
_VSTD::forward<_Args>(__args)...,
inner_allocator()
);
}
template <class ..._Args, size_t ..._Idx>
_LIBCPP_INLINE_VISIBILITY
tuple<_Args&&...>
__transform_tuple(integral_constant<int, 0>, tuple<_Args...>&& __t,
__tuple_indices<_Idx...>)
{
return _VSTD::forward_as_tuple(_VSTD::get<_Idx>(_VSTD::move(__t))...);
}
template <class ..._Args, size_t ..._Idx>
_LIBCPP_INLINE_VISIBILITY
tuple<allocator_arg_t, inner_allocator_type&, _Args&&...>
__transform_tuple(integral_constant<int, 1>, tuple<_Args...> && __t,
__tuple_indices<_Idx...>)
{
using _Tup = tuple<allocator_arg_t, inner_allocator_type&, _Args&&...>;
return _Tup(allocator_arg, inner_allocator(),
_VSTD::get<_Idx>(_VSTD::move(__t))...);
}
template <class ..._Args, size_t ..._Idx>
_LIBCPP_INLINE_VISIBILITY
tuple<_Args&&..., inner_allocator_type&>
__transform_tuple(integral_constant<int, 2>, tuple<_Args...> && __t,
__tuple_indices<_Idx...>)
{
using _Tup = tuple<_Args&&..., inner_allocator_type&>;
return _Tup(_VSTD::get<_Idx>(_VSTD::move(__t))..., inner_allocator());
}
template <class...> friend class __scoped_allocator_storage;
};
template <class _OuterA1, class _OuterA2>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const scoped_allocator_adaptor<_OuterA1>& __a,
const scoped_allocator_adaptor<_OuterA2>& __b) _NOEXCEPT
{
return __a.outer_allocator() == __b.outer_allocator();
}
template <class _OuterA1, class _OuterA2, class _InnerA0, class... _InnerAllocs>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const scoped_allocator_adaptor<_OuterA1, _InnerA0, _InnerAllocs...>& __a,
const scoped_allocator_adaptor<_OuterA2, _InnerA0, _InnerAllocs...>& __b) _NOEXCEPT
{
return __a.outer_allocator() == __b.outer_allocator() &&
__a.inner_allocator() == __b.inner_allocator();
}
template <class _OuterA1, class _OuterA2, class... _InnerAllocs>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const scoped_allocator_adaptor<_OuterA1, _InnerAllocs...>& __a,
const scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>& __b) _NOEXCEPT
{
return !(__a == __b);
}
#endif // !defined(_LIBCPP_CXX03_LANG)
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_SCOPED_ALLOCATOR
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