Re: [boost] Request for Feedback on the Singularity Design Pattern

Subject: Re: [boost] Request for Feedback on the Singularity Design Pattern
From: Klaim - Joël Lamotte (mjklaim_at_[hidden])
Date: 2011-06-28 05:34:47

On Tue, Jun 28, 2011 at 07:13, Ben Robinson <icaretaker_at_[hidden]> wrote:

> The source is now available on GitHub at:
>
> https://github.com/icaretaker/Singularity
>

I started to read it and I have a minor suggestion : would it be a good idea
to also allow creation/destruction of the object without using create() and
destroy()?

class TheObject : public singularity<TheObject, global_access > {...}

m_the_object  =  new TheObject();
...

// in another module
auto& the_object = TheObject::get(); // ok if run after the previous code
...

// in another function
delete m_the_object; // now TheObject::get() will throw

I've seen such possibility in Singleton implementations and found it useful
but I'm not sure if it's a good idea because of the destruction function
throwing.

Joël Lamotte