You can add data members, and the compiler will not complain, but this will not be a typical protocol class.
Reference: More Exceptional C++
by Herb Sutter. Addison-Wesley, 2002., p. 158.
Monday, October 11, 2010
Protocol Classes
Protocol classes (aka Interface Classes) contain only pure virtual functions and no data members.
You can add data members, and the compiler will not complain, but this will not be a typical protocol class.
Reference: More Exceptional C++ by Herb Sutter. Addison-Wesley, 2002., p. 158.
You can add data members, and the compiler will not complain, but this will not be a typical protocol class.
Reference: More Exceptional C++
by Herb Sutter. Addison-Wesley, 2002., p. 158.
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