What is the object serialization in c plus plus?

Answer 1

Object serialisation simply means saving an object's members to a file, to be reloaded at a later time. The object itself should handle its own serialisation, given an archive object. The archive object determines if the object is to insert its members to the file or to extract them from the file. Objects that support serialisation must be capable of instantiating themselves through serialisation, usually by passing an archive object to the object's constructor.

Objects that contain other objects as members do not need to know how to serialise those objects, since every object should take care of its own serialisation. The containing object simply calls each object's serialise method, passing it the archive object. The only real requirement is that all members must be serialised in the same sequence, whether saving or loading, as all data is saved sequentially.