class data_allocator<T> memory¶

using value_type      = T

using pointer         = T*

using const_pointer   = const T*

using reference       = T&

using const_reference = const T&

using size_type       = std::size_t

using difference_type = std::ptrdiff_t

template <typename U>
struct rebind { … }

constexpr data_allocator() noexcept                      = default

constexpr data_allocator(const data_allocator&) noexcept = default

template <typename U>
constexpr data_allocator(const data_allocator<U>&) noexcept { … }

pointer allocate(size_type n) const

void deallocate(pointer p, size_type)