Thread: Realloc Question

given the followng code, am i right to say that pointer r and ptr will be the same if the location of the memory does change? r will only take a new position if it needs to shift to another part of the memory? thanks

Code:

void* realloc(void *ptr, size_t size) {
    static void* (*func)();
    void *r;
    if(!func) {
        func = (void *(*)())dlsym(RTLD_NEXT, "realloc");
    }
    r = func(ptr, size);
    printf("realloc %p %d %p\n", r, size, ptr);
    return r;
}

Your question is "Does something stay still if it doesn't move?" The answer is yes.

ok so jus to confirm again. r and ptr will be the same if place in memory is not changed. r and ptr will be different if place in memory is changed. thanks