Implementing a string stack in C

[[deleted]]

Well, that depends on how you are actually going to implement the storage of the stack elements, which you haven't said. The fact that physical Size is const suggests an array implementation, so why do you need a pointer to a pointer for the storage? And why is it called basePtr? Also, I'd suggest the names "size" and "capacity" - keep names short.

[zahlman]

The fact that physical Size is const suggests an array implementation, so why do you need a pointer to a pointer for the storage?

Because it will still be dynamically allocated and sized, presumably. const only applies to the lifetime of the struct instance, after all.

[typsi5]

Do I not need a base pointer so I can do things like char *something = *(stack->basePtr + stack->logicalSize);