2012/6/10 Bartosz Dziewoski <matma.rex / gmail.com>:
> It is atomic on MRI. It may or may not be on other interpreters, if
> you care about them. (But probably should be as an element of the
> syntax.)
>
> Array#<< may or may not be atomic as well. (It is on MRI.)

Thanks, so I've no problem since I'm coding for MRI.

-- 
Iaki Baz Castillo
<ibc / aliax.net>