Introduction to C++ Friends, Nesting, Static Members, and Templates

CS202 7- ‹#›

Class Templates

•If we define data members that are themselves template classes, the classes are not implicitly instantiated until those members are first used.

•In the following class, the list_object data member's class is not implicitly instantiated until the point at which data member is first used.

•On the down side, unless explicit instantiation (explained in the next section) is requested, errors can only be found by explicitly using all member functions for each use expected. This applies to syntax errors as well as run time errors.