C++ unique_ptr: Purpose Explained

In C++, unique_ptr is a smart pointer used to manage dynamically allocated memory resources. Its purpose is to automatically release the managed memory resources when its lifecycle ends, thus preventing memory leaks. unique_ptr guarantees that only one pointer points to the managed memory at any given time, so it does not allow copy operations and ownership can only be transferred through move semantics. By using unique_ptr, the hassle of manually managing memory resources can be avoided, increasing the security and maintainability of the code.