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Tip of the Day
Language: C++
Expertise: Beginner
Nov 27, 2000

Accessing Static Class Members

Because static class members are not associated with a particular object of their class, you can access them even if you haven't instantiated any object. In the following example, the static member function read_val() returns the value of the static member n, although no instance of class C exists:

 
class C
{
private:
 static int n;
public:
 static int read_val() {return n;}
};

int main()
{
 int m = C::read_val(); // no object of type C exists; OK
}
Danny Kalev
 
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