Scroll to navigation

std::scoped_allocator_adaptor::allocate(3) C++ Standard Libary std::scoped_allocator_adaptor::allocate(3)


std::scoped_allocator_adaptor::allocate - std::scoped_allocator_adaptor::allocate


Defined in header <scoped_allocator>
pointer allocate( size_type n ); (since C++11)
(until C++20)
[[nodiscard]] pointer allocate( size_type n ); (since C++20)
pointer allocate( size_type n, (1) (since C++11)
const_void_pointer hint ); (2) (until C++20)
[[nodiscard]] pointer allocate( size_type n, (since C++20)
const_void_pointer hint );

Uses the outer allocator to allocate uninitialized storage.

1) Calls std::allocator_traits<OuterAlloc>::allocate(outer_allocator(), n)
2) Additionally provides memory locality hint, by calling
std::allocator_traits<OuterAlloc>::allocate(outer_allocator(), n, hint)


n - the number of objects to allocate storage for
hint - pointer to a nearby memory location

Return value

The pointer to the allocated storage

See also

allocate allocates uninitialized storage
(public member function of std::allocator<T>)
allocate allocates uninitialized storage using the allocator
[static] (public static member function of std::allocator_traits<Alloc>)