> PS: There is a paper 
> (http://www.aristeia.com/Papers/DDJ_Jul_Aug_2004_revised.pdf) from Scott 
> Meyers and Andrei Alexandrescu showing even or volatile usage in base 
> classes are wrong. Unfortunately it's down.

    With MSVC we are safe as we use "volatile" and compiler used read\write 
memory 
barriers (or acquire\release semantics) for access to volatile variables :

    http://msdn.microsoft.com/en-us/library/ms686355.aspx

    Can't said for other compilers (GCC at the first place).

Regards,
Vlad

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