g++4.0 diagnostic on casting a static const member initializer to a double

[Fariborz Jahanian]

g++ 4.0 in FSF issues a diagnostic on the following test case:

template <class T> struct S {
   static const double scd = (double)24;
};

test1.C:2: error: a cast to a type other than an integral or 
enumeration type cannot appear in a constant-expression

Rewriting the above to:

template <class T> struct S {
   static const double scd;
};

template <class T>
const double S<T>::scd = (double)24;

Compiles. Event though the diagnostic is clear in what it is saying, 
but it seems to be a g++ bug
one way or the other.

- fariborz (fjahanian@apple.com).