Modern C++ Programming Cookbook

How it works...

Regardless of whether we serialize the entire object (for POD types) or only parts of it, we use the same stream classes discussed in the previous recipe, ofstream for output file streams and ifstream for input file streams. Details about writing and reading data using these standard classes have been discussed in that recipe and will not be reiterated here.

When you serialize and deserialize objects to and from files, you should avoid writing values of pointers to a file, and you must not read pointer values from the file since these represent memory addresses and are meaningless across processes, or even in the same process some moments later. Instead, you should write data referred by a pointer and read data into objects ...