Subject: Re: [boost] [SmartPointers] Determine interest in a new pointer wrapper class "flex_ptr"
From: Gottlob Frege (gottlobfrege_at_[hidden])
Date: 2015-03-27 16:16:24
On Wed, Mar 25, 2015 at 8:55 AM, Jakob Riedle <jakob.riedle_at_[hidden]> wrote:
>> A null-deleter would make it basically non-owning..
> That doesn't solve Efficiency, but it allows for non-owning shared_ptr's.
> Thank you!
It doesn't, however, solve the underlying safety issues. Smart
Pointers tend to be smart in two ways:
- track ownership to correctly delete object
- be safe
With flex_ptr (or shared_ptr with custom deleter), how do you know
that a non-null flex_ptr is pointing to valid memory or not.
Or if it is valid on this line, but not the next, due to threading or something.
Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk