delta_page_header
bits_per_page = ((bytes_per_page - sizeof(struct delta_page_header)) * BITS_PER_BYTE);
return sizeof(struct delta_page_header) * BITS_PER_BYTE +
if (list_count > ((memory_size - sizeof(struct delta_page_header)) *
struct delta_page_header *header = (struct delta_page_header *) memory;
struct delta_page_header *header;
header = (struct delta_page_header *) memory;