std::allocator - Man Page

typedef ptrdiff_t difference_type
using is_always_equal
using propagate_on_container_move_assignment
typedef size_t size_type
typedef _Tp value_type

constexpr allocator (const allocator &__a) noexcept
template<typename _Tp1 > constexpr allocator (const allocator< _Tp1 > &) noexcept
constexpr _Tp * allocate (size_t __n)
_Tp * allocate (size_type __n, const void *=static_cast< const void * >(0))
constexpr void deallocate (_Tp *__p, size_t __n)
allocator & operator= (const allocator &)=default

constexpr bool operator== (const allocator &, const allocator &) noexcept

(Note that these are not member symbols.)

template<typename _T1 , typename _T2 > constexpr bool operator== (const allocator< _T1 > &, const allocator< _T2 > &) noexcept

class std::allocator< _Tp >"The standard allocator, as per C++03 [20.4.1].

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/memory.html#std.util.memory.allocator for further details.

Template Parameters