Why are static class members the same for all objects?

Question

Why don't we have different copies of static variables for different objects?

Answer 1

Because they will be members of the copy .

The main characteristic of static elements is that they are shared by all instances of the class.

Answer 2

Since the $ 9.4.2 / 1 section of C ++ Standard (2003) says:

A static data member is not part of a subobject of a class. There is only one copy of the static data element shared by all objects in the class.

Since only the standard decides what C ++ is and what not, since C ++ was developed!

Static elements are more like global objects. The same copy applies to all objects!

See this post for a detailed answer: Static class members occupy memory if an object of this class has not been created?

Answer 3

A static member is not associated with a specific instance.

If you need different member values ​​for each instance, you should use instance members (remove the static keyword).

Answer 4

By definition, a static object is one that is shared by all instances of the class. Ordinary members do not have this property.

Answer 5

This definition is static - there is one copy of the data. It is separately stored, most likely, together with all other static data of the library or application.

Answer 6

Because what static means in this context.

Answer 7

Since the static elements of a class are stored separately in the BSS section, each instance of the class has the same value.