Question

I’m trying to use class as a key of standard map structure.

The usage is like below.

std::map<ClassName, int> someMap;

someMap[ StudentClass ]
someMap[ TeacherClass ]

I’ll use this making Template Factory class.

Answer 1

Do you need the class names to be human reaqdable? If not, then you can use typeid and type_info. You can get the string with type_info::name() (details), but note that it is not guaranteed to be anything readable or even unique, for that matter (the type_info object itself, however, is going to be unique). Beyond that, you’ll have to either rely on non-portable mechanisms or write your own code for doing this.