Re: [boost] Smart Pointer new/Forwarding Problem Solved (by Force)

From: David Abrahams (dave_at_[hidden])
Date: 2006-03-29 17:06:11

Thorsten Ottosen <thorsten.ottosen_at_[hidden]> writes:

> It is better that new_<T>(...) produces an unspecified type
> that has a templated conversion operator, eg.:
>
> template< class T >
> struct new_return
> {
>     std::auto_ptr<T> new_;
>
>     new_return( T* new_ ) : new_(new_)
>     { }
>
>     template< class SP >
>     operator SP() const
>     {
>       return SP( new_.release() );
>     }
>
>     operator std::auto_ptr<T>() const
>     {
>       return new_;
>     }
> };
>
> Or something

I started down that road, but unfortunately, there's nothing to keep
the operator SP conversion from converting to raw pointers. ;-)

I don't see why Peter is the only one who seems to be responding to
the auto_ptr rvalue implicit conversion technique.  It just works.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com