How does reference to pointer exactly work in C++, and when do we need them (in the case of linked list)
问题 I know that pointers hold the address of a variable. And references point to the same address in the symbol table (that is, the same address of the variable, that they are assigned to). My question is, how do reference to pointers exactly work. And when do we need them, as opposed to using pointer alone (and not using reference to pointer). It will be helpful if you could explain me the use of reference to pointer, with respect to a singly linked list. I have the following code that deletes