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What does this statement mean?
If I declare a structure as:
Code:
typedef struct
{
int id;
void* ptr;
int size;
} kpage_t;
And then use this to do some initialization...
Code:
*((kpage_t**)page->ptr) = page;
What exactly is being done? I have some trouble with pointers here... 
And if there's a macro BASEADDRESS(x) defined as
Code:
((void*)(((int) (x)) & ~(PAGESIZE-1)))
What exactly is happening here assuming that PAGESIZE is a power of two number...
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