Re: [Boost-users] [thread] safe portable static mutex initialization

Subject: Re: [Boost-users] [thread] safe portable static mutex initialization
From: Anthony Williams (anthony.ajw_at_[hidden])
Date: 2012-04-20 10:53:47

On 20/04/12 14:41, Dave Abrahams wrote:
> on Fri Apr 20 2012, Will Mason <willchido-AT-gmail.com> wrote:
> 
>> On Fri, Apr 20, 2012 at 8:04 AM, Juan Ramírez <juanantonio.ram_at_[hidden]> wrote:
>>     But the initialization of static variables declared inside a function
>>     is not guaranteed to be thread safe. So you could easily end up
>>     calling it's constructor twice.
>>
>> That's something that boost::call_once is good at preventing.
> 
> Correct, for C++03.  I could be mis-remembering but IIRC in C++11
> function-local static variables have been given automatic threadsafe
> initialization.

You are right: this is guaranteed in C++11.

Anthony
-- 
Author of C++ Concurrency in Action     http://www.stdthread.co.uk/book/
just::thread C++11 thread library             http://www.stdthread.co.uk
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