Question

In an application, I have a problem like this.
The method was designed to provide an generic interface for the user to get memory from a global memory pool, implemented like:

shmPool shm;
void getMemory(void* mPtr){
   mPtr = &shm;
}

but it is clear that the value of mPtr is not changed. How is it possible to align the value of a pointer to a unknown type pointer.

Answer 1

Why not simply return the pointer, instead of using an out-parameter?

void* getMemory() {
    return &shm;
}