Re: [boost] [smart_ptr] Some questions

From: Frank Mori Hess (frank.hess_at_[hidden])
Date: 2008-04-11 14:02:02

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On Friday 11 April 2008 12:11 pm, Peter Dimov wrote:
> I'm still not 100% convinced that we need this functionality in shared_ptr.
> But if we do, it seems that the proper way to add it is to make shared_ptr
> issue an unqualified call to
>
>     sp_accept_owner( this, p );

It does provide an alternative to making shared_from_this() callable in 
constructors.  As long as sp_accept_owner() is always run after 
enable_shared_from_this is set up (and there is no reason it can't be since 
shared_ptr is fully aware of enable_shared_from_this) then it is usable as a 
post constructor where shared_from_this can be used safely.  Actually, you 
don't even need enable_shared_from_this if don't need to use 
shared_from_this() outside the postconstructor, since you are passed in the 
owning shared_ptr.

- -- 
Frank
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