DETAIL

Output layout of dumpable::write:

(start poistion of user data) (dumpable::dpool) (user data)

For pointer types, the relative position from the address of pointer value itself is stored.

Example:

#pragma pack(push, 1)
struct node
{
    int d;
    node* n;
};
#pragma pack(pop)

node n1: d=1, n=n2
node n2: d=2, n=n3
node n3: d=3, n=nullptr

dumpable::write(n1) ->

size	8		4	8		4	8		4	8
value	4+8+4+8	3	nullptr	2	-4-8-4	1	-4-8-4
(assumes sizeof(T*) == 8)