Thread safety of AAs

[Steven Schveighoffer]

On Tue, 15 May 2012 22:35:17 -0400, Alex Rønne Petersen  
<xtzgzorex at gmail.com> wrote:

> Hi,
>
> Suppose that I have an AA that I'm doing lookups on from one thread, and  
> writing to in another. Is this safe at all?

No.

AA's are not a default-shared type.

If you need a counter-case, just consider that your adding thread does a  
rehash when you are traversing in your reading thread.

-Steve