declaring the argument as <tt>const Arg&</tt>, then if Arg were a
reference type, we would have a reference to a reference, which is
currently illegal (but see <a href=
- "http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/cwg_active.html#106">C++ core
+ "http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#106">C++ core
language issue number 106)</a></p>
<p>So the way in which we want to declare the argument for