# std::scoped_allocator_adaptor<OuterAlloc,InnerAlloc...>::max_size

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< cpp‎ | memory‎ | scoped allocator adaptor

Defined in header `<scoped_allocator>` |  |
size_type max_size() const; |  | (since C++11)

Reports the maximum allocation size supported by the outer allocator, by calling std::allocator_traits<OuterAlloc>::max_size(outer_allocator()).

### Parameters

(none)

### Return value

The maximum allocation size for OuterAlloc.

### See also

max_size (until C++20) | returns the largest supported allocation size (public member function of `std::allocator<T>`)
max_size [static] | returns the maximum object size supported by the allocator (public static member function of `std::allocator_traits<Alloc>`)

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