C ++ 20 引入了“销毁operator delete”：operator delete采用标记类型std::destroying_delete_t参数的新重载。
operator delete
std::destroying_delete_t
这到底是什么，什么时候有用？
c++ destructor destroy delete-operator c++20
c++ ×1
c++20 ×1
delete-operator ×1
destroy ×1
destructor ×1