Re: [boost] scoped_ptr deleter

Subject: Re: [boost] scoped_ptr deleter
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-09-15 08:27:38

Berserker wrote:
>
> The "noncopyable nature" of scoped_ptr allows to support
> deleters with simply an extra template
> parameter (default value is boost::checked_deleter): this
> change doesn't require extra memory
> overhead (like in shared_ptr) and it consists of 2 lines.

That change creates multiple, distinct classes.  shared_ptr<T,boost::checked_deleter<T>> is not the same as shared_ptr<T,my_deleter<T>>.  By embedding the deleter in the shared_ptr with type erasure, shared_ptr<T> is shared_ptr<T> is shared_ptr<T>, regardless of the deleter.

> Any hope to apply this patch?

None, unless I'm much mistaken.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

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