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std::pmr::polymorphic_allocator::select_on_container_copy_construction

STD：：PMR：：多态[医]分配器：：选择[医]上[医]集装箱[医]复制[医]建设

polymorphic_allocator select_on_container_copy_construction() const;​(since C++17)

返回默认构造的polymorphic_allocator对象。

参数

%280%29

返回值

默认构造polymorphic_allocator对象。

注记

polymorphic_allocatorS不在容器复制结构上传播。

另见

select_on_container_copy_construction staticobtains the allocator to use after copying a standard container (public static member function of std::allocator_traits)

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