Curiously recurring template pattern (CRTP) with static constexpr in Clang

Question

Consider my simple example below:

#include 

template 
class Base
{
public:
    static constexpr int y = T::x;
};

class Derive         


        

Answer 1

This probably isn't the answer anyone would be looking for, but I solved the problem by adding a third class:

#include 

template 
class Base
{
public:
    static constexpr int y = T::x;
};

class Data
{
public:
     static constexpr int x = 5;
};

class Derived : public Base, public Data {};

int main()
{
    std::cout << Derived::y << std::endl;
}

It works as desired, but unfortunately it doesn't really have the benefits of CRTP!