How to Serialize a Large std::map in a Qt GUI Application?

Serialization with Qt

Question:

In a Qt GUI application, how can you serialize a large std::map? Does Qt provide any necessary features for this task?

Answer:

Introduction to QDataStream

Qt offers a powerful tool for data serialization and deserialization: QDataStream. This stream-based mechanism allows you to handle a wide range of Qt and C data types, including custom types.

Handling Custom Types

To serialize and deserialize custom types, you can overload the << and >> operators. Consider a custom type Painting:

The above is the detailed content of How to Serialize a Large std::map in a Qt GUI Application?. For more information, please follow other related articles on the PHP Chinese website!