on Thu Mar 12 2009, athor <thorena-AT-gmail.com> wrote:

> * You don't *need* a const& to break cyclic reference. Passing a shared_ptr
> by value works too.

And that's almost always a better idea.  If you *do* have a reference
cycle, consider weak_ptr instead.

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com
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