template<typename T>
constexpr int get(T vec) {
  return vec.get();
}
 
struct coord {
  constexpr int get() const { return x; }
  int x;
};
 
struct foo {
    struct coord2 {
      constexpr int get() const { return x; }
      int x;
    };
    constexpr static coord f = { 5 };
    constexpr static int g = get(f); // works
 
    constexpr static coord2 h = { 5 };
};
 
constexpr coord foo::f;
constexpr foo::coord2 foo::h;
 
int main()
{
    constexpr static int i = get(foo::h); // doesn't work
 
}

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