How can I store a value at a specific location in the memory?

Question

Maybe this is an easy question question but I would really like to know it for sure.

If I want to store a value, say an int, at a specific address in the memory (at

Answer 1

I beleieve that the best way to achive your goal is implement your own malloc which will allocate 4 bytes more and store size of memory block like:

void* mymalloc(int size)    
{
    char* ptr = malloc(size+sizeof(int));
    memcpy(ptr, &size, sizeof(int));
    return ptr+sizeof(int); 
}