Question

On GCC, The following gives me an error: no type named 'x' in 'struct Type'

On VC++, It complains about p being undeclared

struct Type
{
   static int const x = 0;
};

template <class T> void Func()
{
   typename T::x * p; // p to be pointer
}

int main()
{
   Func<Type>();
}

Answer 1

T::x becomes Type::x, which is an int, not a type.

You’ve told the compiler that T::x names a type by using typename. When Func<Type> is instantiated, T::x is not a type, so the compiler reports an error.