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

NAME

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

Synopsis


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).

Parameters


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>)

2024.06.10 http://cppreference.com