Answer 1

The reinterpret_cast operator converts any pointer of a type to another pointer of a different type.

Syntax :

reinterpret_cast<final_type*>
(&initial_object);

Eg :

ifstream fin; Class obj;
fin.open("a.dat",ios::binary);
fin.read(reinterpret_cast<char*>(&obj),
sizeof(obj));

It is somewhat dangerous as it casts(forces) the type, and can convert a pointer of any type to a different type, even if the types have no relation at all. (Eg - unrelated classes). That is why there is no guarantee that the conversion would be successful or would work as expected and would not raise errors.