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C++20 Utility functions to implement uses-allocator construction.pdf

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Utility functions to implement uses-allocator construction
C++ 20 이전 std::allocator<T> 기본으로 제공하는 allocator. 모든 std container 에서 기본으로 사용된다. std::uses_allocator<T, Alloc> Alloc 에서 T 를 생성할 수 있는지 알 수 있는 type_trait 클래스 각각 alloc 을 사용하는 std::pair 에 대해서는 제대로 동작하지 않았다고 함
std::allocator 예제 C++ 20에서 삭제
std::uses_allocator_construction_args Prepares the argument list needed to create an object of the given type T by means of uses-allocator construction.
std::uses_allocator_construction_args
std::make_obj_using_allocator Creates an object of the given type T by means of uses-allocator construction.
std::uninitialized_construct_using_allocator Prepares the argument list needed to create an object of the given type T by means of uses-allocator construction.
std::pmr::polymorphic_allocator
std::pmr::polymorphic_allocator

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C++20 Utility functions to implement uses-allocator construction.pdf