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This article introduces the knowledge of "how C++ organizes relevant data to form structures or classes". Many people will encounter this dilemma in the operation of actual cases. then let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

C.1: organize related data to form structures or classes

Reason (reason)

Ease of comprehension. If data is related (for fundamental reasons), that fact should be reflected in code.

Reduce the difficulty of understanding. If the data (for fundamental reasons) are relevant, then this fact should be reflected in the code.

Translator's note: the first step of object-oriented software design is to model the target system. It is a whole in the target system, and it should be the same in the model.

Example (sample)

Void draw (int x, int y, int x2, int y2); / / BAD: unnecessary implicit relationshipsvoid draw (Point from, Point to); / / betterNote (note)

A simple class without virtual functions implies no space or time overhead.

Simple classes that do not contain virtual functions do not incur additional space and time costs.

Note (Note)

From a language perspective class and struct differ only in the default visibility of their members.

From a language point of view, the only difference between class and struct is the visibility of members by default.

Translator's note: this is only the difference at the compilation level.

Enforcement (implementation recommendations)

Probably impossible. Maybe a heuristic looking for data items used together is possible.

It's probably impossible. Perhaps it is possible to heuristically look for data to be used together.

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