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

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std::scoped_allocator_adaptor
 
Defined in header <scoped_allocator>
(1)
pointer allocate( size_type n );
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[[nodiscard]] pointer allocate( size_type n );
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(2)
pointer allocate( size_type n, const_void_pointer hint );
 (since 哋它亢++11)
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[[nodiscard]] pointer allocate( size_type n, const_void_pointer hint );
 (since 哋它亢++20)

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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