Binary Serialization of a Doubly Linked List

In order to properly store a list in a file, you must copy each node individually and avoid storing volatile memory addresses.

A binary read/write must accept a char* argument. Using a DLL consisting of integer data, we can simply cast the address of the integer and pass its size.

  int i = list.getValue();
  data.write((const char*)&i, sizeof(i));

The integer (4 bytes) will be written as 4 characters (1 byte each), which can be read back later on.