Re: Dependent type in template base class

Hi,

I'd like to make the name of a member type in a template base class
directly available to the child class. (I don't want to qualify each
reference to the type with "typename Base<T>::" in order to avoid
extremely ugly code).
I'm currently doing this with an using declaration as in the following
code snippet:

template <typename T>
class base {
     struct param_type { };
     void f(param_type& p) { }
};

template <typename T>
class test : base<T> {
     using typename base<T>::param_type;
     test(param_type& p) { } // GCC doesn't recognize param_type
}