66 typedef _Tp value_type;
67 typedef std::size_t size_type;
69#if __cplusplus <= 201703L
71 typedef const _Tp* const_pointer;
72 typedef _Tp& reference;
73 typedef const _Tp& const_reference;
75 template<
typename _Tp1>
80#if __cplusplus >= 201103L
94 template<
typename _Tp1>
99#if __cplusplus >= 201103L
103#if __cplusplus <= 201703L
115#if __has_builtin(__builtin_operator_new) >= 201802L
116# define _GLIBCXX_OPERATOR_NEW __builtin_operator_new
117# define _GLIBCXX_OPERATOR_DELETE __builtin_operator_delete
119# define _GLIBCXX_OPERATOR_NEW ::operator new
120# define _GLIBCXX_OPERATOR_DELETE ::operator delete
125 _GLIBCXX_NODISCARD _Tp*
126 allocate(size_type __n,
const void* =
static_cast<const void*
>(0))
128#if __cplusplus >= 201103L
131 static_assert(
sizeof(_Tp) != 0,
"cannot allocate incomplete types");
138 if (__n > (std::size_t(-1) /
sizeof(_Tp)))
139 std::__throw_bad_array_new_length();
140 std::__throw_bad_alloc();
143#if __cpp_aligned_new && __cplusplus >= 201103L
146 std::align_val_t
__al = std::align_val_t(
alignof(_Tp));
147 return static_cast<_Tp*
>(_GLIBCXX_OPERATOR_NEW(__n *
sizeof(_Tp),
151 return static_cast<_Tp*
>(_GLIBCXX_OPERATOR_NEW(__n *
sizeof(_Tp)));
158#if __cpp_sized_deallocation
159# define _GLIBCXX_SIZED_DEALLOC(p, n) (p), (n) * sizeof(_Tp)
161# define _GLIBCXX_SIZED_DEALLOC(p, n) (p)
164#if __cpp_aligned_new && __cplusplus >= 201103L
167 _GLIBCXX_OPERATOR_DELETE(_GLIBCXX_SIZED_DEALLOC(__p, __n),
168 std::align_val_t(
alignof(_Tp)));
172 _GLIBCXX_OPERATOR_DELETE(_GLIBCXX_SIZED_DEALLOC(__p, __n));
175#undef _GLIBCXX_SIZED_DEALLOC
176#undef _GLIBCXX_OPERATOR_DELETE
177#undef _GLIBCXX_OPERATOR_NEW
179#if __cplusplus <= 201703L
183 {
return _M_max_size(); }
185#if __cplusplus >= 201103L
186 template<
typename _Up,
typename...
_Args>
190 noexcept(__is_nothrow_new_constructible<_Up,
_Args...>)
193 template<
typename _Up>
204 construct(pointer __p,
const _Tp& __val)
205 { ::new((
void *)__p) _Tp(__val); }
209 destroy(pointer __p) { __p->~_Tp(); }
213 template<
typename _Up>
219#if __cpp_impl_three_way_comparison < 201907L
220 template<
typename _Up>
232#if __PTRDIFF_MAX__ < __SIZE_MAX__
235 return std::size_t(-1) /
sizeof(_Tp);