31   P->Next = Pointers;  in addPointer()
52     Pointers = P->Next;  in removePointer()
55     P->Prev->Next = P->Next;  in removePointer()
56   if (P->Next)  in removePointer()
57     P->Next->Prev = P->Prev;  in removePointer()
82     Old->Prev->Next = New;  in replacePointer()
83   if (Old->Next)  in replacePointer()
84     Old->Next->Prev = New;  in replacePointer()
86   New->Next = Old->Next;  in replacePointer()
100   for (const Pointer *C = Pointers; C; C = C->Next) {  in hasPointer()
115   Next = Root;  in DeadBlock()
123   for (Pointer *P = Blk->Pointers; P; P = P->Next)  in DeadBlock()
133     Prev->Next = Next;  in free()
134   if (Next)  in free()
135     Next->Prev = Prev;  in free()
137     Root = Next;  in free()