std::destroying_delete_t, std::destroying_delete
来自cppreference.com
                    
                                        
                    
                    
                                                            
                    | 在标头  <new>定义 | ||
| struct destroying_delete_t { explicit destroying_delete_t() = default; }; | (C++20 起) | |
| inline constexpr destroying_delete_t destroying_delete{}; | (C++20 起) | |
用于鉴别 operator delete 的销毁删除形式的标签类型。
参阅
| 解分配函数 (函数) |