Question

I want to create an inner template class that will be dependent on the outer class.
I’m having trouble defining its static members:

template<typename T1, typename T2>
struct B { 
  template<typename T3> 
  struct C { 
      static T3 m_c;
  }; 
  static T1 * pT1;
};
template<typename T1, typename T2>
template<typename T3>
T3 B<T1,T2>::C<T3>::m_c;

template<typename T1, typename T2> 
T1 * B<T1,T2>::pT1 = &B<T1,T2>::C<T2>::m_c;

I’m getting:
a.cc:35: error: expected primary-expression before ‘>’ token
a.cc:35: error: ‘::m_c’ has not been declared

How do I define it?
Thanks.

Answer 1

I’m guessing your compiler fails at parsing the < sign as the opening bracket of template declaration. Try to tell it explicitly that it is a template, not a less-than operator:

template<typename T3>
T3 B<T1,T2>::template C<T3>::m_c;