std::uses_allocator<std::dynarray>
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                    | template< class T, class Alloc > struct uses_allocator<dynarray<T>, Alloc> : std::true_type; | (since C++14) | |
Provides a specialization of the std::uses_allocator type trait for std::dynarray. A dynarray may be constructed with an allocator, even though the class does not have allocator_type member type. 
[edit] See also
| (C++11) | checks if the specified type supports uses-allocator construction (class template) |