相关疑难解决方法(0)

哪一个编译器是对的？

class A
{
public:
   template <typename T>
   void fun(void (*f)() = funPrivate<T>) {}
private:
   template <typename T>
   static void funPrivate() {}
};

int main(int argc, char** argv)
{
  A a;
  a.fun<int>();
  return 0;
} 

编译正常:gcc版本4.8.5(Ubuntu 4.8.5-2ubuntu1~14.04.1)

导致错误:clang版本3.4-1ubuntu3(标签/ RELEASE_34/final)(基于LLVM 3.4)

    a.cpp:5:27: error: 'funPrivate' is a private member of 'A'
   void fun(void (*f)() = funPrivate<T>) {}
                          ^~~~~~~~~~~~~
    a.cpp:14:3: note: in instantiation of default function argument expression for 'fun<int>' required here
      a.fun<int>();
      ^
    a.cpp:8:16: note: declared private here
       static void …