std::scoped_allocator_adaptor<OuterAlloc,InnerAlloc...>:: allocate

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C++
Dynamic memory management
Uninitialized memory algorithms
Constrained uninitialized memory algorithms
Allocators
Garbage collection support
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)



std::scoped_allocator_adaptor
Defined in header <scoped_allocator>
pointer allocate ( size_type n ) ;
(1) (since C++11)
pointer allocate ( size_type n, const_void_pointer hint ) ;
(2) (since C++11)

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

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