I have something like this :

class Container1 {
  public:
    method1() { ... }
}
class Container2 {
  public:
    method1() { ... }
}

template<class C = Container1>
class X : public C {
  public:
    using C::method1();
    .....
    X(string& str) : C(str) {};
    X& other_method() { method1(); ...; }
}

My question is why I have to use "using C::method1()", to be able to access the method.. Most of answers I found is for the case where templated-class inhering templated-class. Normally they mention using "this->", but this does not seem to work in this case. Can I do something else shorter...

Also I'm suspecting the other error I'm getting is related to the same problem :

no match call for (X<Container1>) (<std::string&>)