Can you explain what is meant by the POD type?

The POD (Plain Old Data) type in C++ is a data type that meets certain requirements, allowing it to behave like a simple structured type from C. POD types are characterized by:

• They do not have user-defined constructors, destructors, or copy operators.
• All their members are also POD types.
• They lack virtual functions and virtual inheritance.

POD types can be safely copied byte-by-byte, and can be used in low-level operations such as serialization or interaction with C APIs.

Example of a POD structure:

struct Point {
    int x;
    int y;
};

Such a type can be considered POD because it is simple and does not contain complex logic.