Is the following legal?

 const int& positive(const int& value)
 {
  if (value<0)
  {
   return 0;
  }
  else
  {
   return value;
  }
 }

If so, I presume it's also valid in the general case:

 const ClassType& func(const ClassType& value);

and that the return of a literal generates a temporary which is bound to
the reference returned and persists until the completion of the full
expression enclosing the function call (or the destruction of a reference
variable to which the returned reference is subsequently bound).

I've searched through the April 95 WP for a definitive answer.
8.5.3. [dcl.init.ref] seems to imply this usage is valid (by
analogy to the binding of temporaries to const reference parameters).

damian
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  who: Damian Conway               email: damian@bruce.cs.monash.edu.au
where: Dept. Computer Science      phone: +61-3-565-5184
       Monash University             fax: +61-3-565-5146
       Clayton 3168                quote: "A pessimist is never disappointed."
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