We aren't building C++11 yet on the build boxes so I guess that's why it
appears fine. Also, our users are still defaulting to C++03 so yeah, nobody
would be hitting this bug except for devs and we don't exercise threading
too often in our day to day work.
On Wed, Mar 30, 2016 at 10:01 AM Derek Gaston <fried...@gmail.com> wrote:
> Ummm... guys... is it just me... or did I _completely_ cock up the
> double-checked lock I put into PetscVector?
>
> Just look at where the damn lock is! It's inside the second `if`!!
> That's not going to work!
>
>
> https://github.com/libMesh/libmesh/blob/master/src/numerics/petsc_vector.C#L1331
>
> We had so many iterations on this... how did the final version go in like
> this? I blame jwpeterson... since he merged it!
>
> Luckily... we also put in the draconian version for non-C++11... that one
> is fine ;-)
>
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