From: David Abrahams (dave_at_[hidden])
Date: 2004-12-04 14:40:27
Duane Murphy wrote:
> I am implementing an iterator via iterator facade. The container that the
> iterator is being used with can only return dereferenced values by value
> (not by reference).
>
> If I implement the dereference() function (for facade) by returning a
> value (instead of reference) then it appears that the iterator works properly.
>
> The most important operation that does _not_ work is that the iterator
> cannot be used with bind(). (bind cannot be used with non-const return types.)
Sorry, I can't imagine what you mean. Of course bind works with
non-const return types:
int f(int x) { return x + 1; }
int three = bind(f, 2)();
> If I change the iterator to return a reference type then the iterator
> functions still work and so does bind.
Please post your code.
-- Dave Abrahams Boost Consulting http://www.boost-consulting.com