19.4. Pointer to Class Member
A pointer to member is a pointer that can point to a nonstatic member of a class. Normally a pointer points to an object, but a pointer to member identifies a member of a class, not an object of that class. static class members are not part of any object, so no special syntax is needed to point to a static member. Pointers to static members are ordinary pointers.
The type of a pointer to member embodies both the type of a class and the type of a member of that class. We initialize such pointers to point to a specific member of a class without identifying an object to which that member belongs. When we use a pointer to member, we supply the object whose member we wish to use.
To explain pointers to members, we’ll ...
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