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Subject: Re: [boost] [block_ptr] & Java
From: Antony Polukhin (antoshkka_at_[hidden])
Date: 2013-08-31 01:48:08

2013/8/31 Dave Abrahams <dave_at_[hidden]>

> on Fri Aug 30 2013, Phil Bouchard <> wrote:
> > On 8/30/2013 4:43 PM, Jens Weller wrote:
> >>
> >> I'll just ask about the elephant in the room:
> >> What does your block_ptr do differently then the for years known
> smartpointer implementation in boost?
> >> Why is there a need for reinventing the wheel?
> >
> > Because cyclic pointers need to be handled explicitly with smart
> > pointers whereas with mine it's done implicitly.
> There's no one correct destruction order for objects participating in a
> cycle. That's one reason most C++ garbage collectors collect memory but
> don't run destructors. How does your system deal with this?

It still can be usable for types with trivial destructor. (However it is
hard to imagine any smart ptr with trivial destructor, so making a cycle of
trivial types with smart pointers seems impossible.).

Can we see the implementation of block pointer?

Best regards,
Antony Polukhin

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