C++17 not_fn

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std::not_fn
https://en.cppreference.com/w/cpp/utility/functional/not_fn

C++03 부터 있던 std::not1, std::not2 를 대체하기 위해 추가
std::not1, std::not2 은 C++17에서 deprecated 되고 C++20에서 삭제 예정
왜 삭제 되었는가…?

std::not1 대체 코드
결과 : 3
https://en.cppreference.com/w/cpp/utility/functional/not1

std::not2 대체 코드
https://en.cppreference.com/w/cpp/utility/functional/not2

C++17 not_fn

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C++17 not_fn

1. std::not_fn https://en.cppreference.com/w/cpp/utility/functional/not_fn

2. C++03 부터 있던 std::not1, std::not2 를 대체하기 위해 추가 std::not1, std::not2 은 C++17에서 deprecated 되고 C++20에서 삭제 예정 왜 삭제 되었는가…?

3. std::not1 대체 코드 결과 : 3 https://en.cppreference.com/w/cpp/utility/functional/not1

4. std::not2 대체 코드 https://en.cppreference.com/w/cpp/utility/functional/not2