Re: [boost] [thread] thread-safe static local

Subject: Re: [boost] [thread] thread-safe static local
From: Frank Mori Hess (frank.hess_at_[hidden])
Date: 2009-03-03 11:54:46

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On Tuesday 03 March 2009, Oliver Kowalke wrote:
> Hi,
> I need a function 'get_default_X()' returning a reference to a singleton in
> a multithreaded env. I choosed Scott Meyers singleton pattern (static
> local) together with boost::call_once(). My this be a reasonable,
> threadsafe implementation?

I don't think so.  Your once_flag is a local variable in Y's constructor, so I 
don't see that the call_once accomplishes anything.

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