c++ - Use the private variable of the superclass with friend -

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i have class private variable a. class b subclass of a. in class b_test, wrtite "b b; b.a;", put friend class c in both class , class b still no works.

any idea? thank you.

(sorry make mistake in code when post question. solved now). rod_algonquin right. thank you.)

private members not inherited. if want access member in inherited class, need use protected modifier.


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