What's the deal with __thread?

[Walter Bright]

On 11/14/2012 12:06 PM, Sean Kelly wrote:
> On Nov 14, 2012, at 6:26 AM, Don Clugston <dac at nospam.com> wrote:
>
>> IIRC it was used prior to 2.030. In the spec, it is in the keyword list,
>> and it's also listed in the "Migrating to shared" article. That's all.
>> There are a small number of uses of it in the DMD test suite.
>>
>> Is it still valid? Is it useful? Or has everyone forgotten that it still
>> exists?
>
> I think __thread was for explicit TLS before TLS became the default.  I don't
> see a continued use for it.
>

Sean's right.