Item 43: Know How to Access Names in Templatized Base Classes

Via this-> prefix, via using declaration, or via an explicit base class qualification.

Compiler refuses to look into templatized base classes for inherited names (when we cross from OOP C++ to template C++, inheritance stops working). To fix this, you could:

• Add this-> prefix as

this->nameFromBaseClass

• Add using declaration

template<T>
class Foo: public Bar<T> {
  using Bar<T>::baz;
  void foo() {
    baz();
  }
};

• Base class qualification (least preferable)

template<T>
class Foo: public Bar<T> {
  void foo() {
    // Don't do this if baz() if a virtual function!
    Bar<T>::baz();
  }
};