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From: vicente.botet (vicente.botet_at_[hidden])
Date: 2008-04-10 17:44:19

From: "Niels Dekker - mail address until 2008-12-31"
Subject: Re: [boost] [optional] problems with swap()

> Thorsten Ottosen wrote:

> What would you think of having boost::optional implemented by holding a
> pointer to T, instead of an aligned_storage object and a m_initialized
> flag? It would manage the memory that the pointer would point to.
> Having NULL would indicate being uninitialized. (I admit it's a rather
> theoretical question, because I don't even know if Fernando would like
> such an approach...)

I don't think that it is a good idea to have a pointer, I expect no extra
allocation from optional.
You can always try to do that in another class, optional_ptr or whatever
name you want for.
I think that this class will be very eassy to implement. Still I will expect
value semantics, and in this
case the extra allocation on copy constructors and assignations will be very

Vicente Juan Botet Escriba

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