How to call a static method from a private base class?

Question

Due to the layout of a third-party library, I have something like the following code:

struct Base {     static void SomeStaticMethod(){} };  struct Derived1: private Base {};  struct Derived2: public Derived1 {     void SomeInstanceMethod(){         Base::SomeStaticMethod();     } };  int main() {     Derived2 d2;     d2.SomeInstanceMethod();      return 0; } 

I'm getting compiler error C2247 with MSVC:

Base::SomeStaticMethod not accessible because Derived1 uses private to inherit from Base.

I know I can't access Base members from Derived2 via inheritance because of the private specifier, but I should still be able to call a static method of Base - regardless of any inheritance relationship between Base and Derived2.
How do I resolve the ambiguity and tell the compiler I'm just making a call to a static method?

Answer 1

Do this:

struct Derived2: public Derived1 {     void SomeInstanceMethod(){         ::Base::SomeStaticMethod(); //      ^^ //      Notice leading :: for accessing root namespace.     } }; 

Answer 2

I think michalsrb's answer is better, but for completeness:

namespace {     void SomeStaticMethodProxy()     {         return Base::SomeStaticMethod();     } }  struct Derived2: public Derived1 {     void SomeInstanceMethod(){         SomeStaticMethodProxy();     } }; 

will also work.