is this standard C++?

[noelkeen]

template<class T, T& (*FP)(T&)>
class Foo {
public:

   Foo(const T& x)                              : t(x) {}
   
   template <class T2, T2& (*FP2)(T2&)>
   Foo(const Foo<T2, FP2>& x)                   : t(x.t) {}

   T t;
};

double&         goo(double& d)                  { return d; }
const double&   const_goo(const double& d)      { return d; }

// Following explicit instantiation of function causes compiler error:
//template
//Foo<const double, const_goo>::Foo(const Foo<double, goo>& foo);

int main() {

   Foo<double, goo>                     foo(0.0);

   // Use templated constructor with arguments T2=double and FP2=goo:
   //Foo<const double, const_goo>::Foo(const Foo<double, goo>& foo)
   Foo<const double, const_goo>         const_foo(foo);
}




This compiles with KCC and the DEC native compiler (cxx).
But does not compile with g++ (2.95.2 or the feb28th snapshot)
or with a beta version of IBM's xlC compiler.  We can't
find anything non-standard with it.

thanks ooodles

noel

ps i'm not on the mailing list, so CC'ing would be rainbowish  :)