On Mon, 2008-07-28 at 10:12 +0200, Daniel Frey wrote:
On Sun, 2008-07-27 at 18:25 +0300, Peter Dimov wrote:
You should be able to make it work by making the appropriate make_shared overload a friend:
template< class T, class A1, class A2 > friend boost::shared_ptr< T > boost::make_shared( A1 const & a1, A2 const & a2 );
Good idea, thanks. It would also render create() useless, since the user could call make_shared directly.
Just an idea when thinking of all the pain involved in allowing shared_from_this during the construction phase with the approach we already discussed earlier: Would it be sensible to guarantee that if my class is derived from enable_shared_from_this that I could call shared_from_this during the construction phase iff it is constructed by make_shared? Would it be possible to implement that behaviour? By making the ctors private and make_shared a friend, the API would even disallow any other way to construct objects, you can not write shared_ptr<X>( new X( .. ) ) by accident, so it would IMHO be safe. Regards, Daniel