I have this smart pointer in top of my cpp file (Global variable):
std::unique_ptr<DATA_READ> smartPT(new DATA_READ);
What happens if smart pointer declares in global scope? I know smart pointer in a function automatically deletes and release memory after the function ends but How about Global Scope Smart Pointer which used in multiple functions?
It will release the allocated memory during the termination of the program. However, it is not a good idea to have smart pointer as global variable.