__thread is a compiler intrinsic and not part of the standard.
thread_local was introduced in the c++11 standard.
Until recently the default version of clang shipped on the apple platform
was not in compliance with the c++11 standard because the team saw an
opportunity for a higher performance impl
A consequence of using `__thread` on Apple is that initializers for thread
locals are required to be constant expressions. This is not the case for
the c++11 standard `thread_local`.
Can you expand on the benefits of 'thread_local'? Is the above statement
alluding to tech debt or preventing new f
Joris, I don't have a strong stance here. I was just providing a data point
of what people may experience out of the box.
Am I correct in understanding the following implications?
- 10.10 would require brew-installed clang to work
- 10.11 would require a Xcode upgrade
- 10.12 would work out
> On Dec 19, 2016, at 3:00 PM, Joris Van Remoortere wrote:
>
> Thanks for your input Zameer.
>
> Is it common for developers on mac to use XCode as their compilation
> environment as well? I would think if you used clang on the command line
> then you could still install an updated version of c
Thanks for your input Zameer.
Is it common for developers on mac to use XCode as their compilation
environment as well? I would think if you used clang on the command line
then you could still install an updated version of clang without having to
do a system upgrade from Yosemite?
I'm getting the
I believe this thread_local support is in XCode 8.2. From the link you
shared:
> Xcode 8.2 requires a Mac running macOS 10.11.5 or later
This means that users can upgrade the compiler on El Capitan just fine
without a system upgrade.
Users on Yosemite need to do a system upgrade to pick up the n
Is my understanding incorrect regarding the ability to upgrade the compiler
version on Yosemite and El Capitan without requiring a full system upgrade?
@Mpark are you making a case for not updating to `thread_local` just yet?
—
*Joris Van Remoortere*
Mesosphere
On Fri, Dec 16, 2016 at 11:11 AM,
Brief survey from the #dev channel: https://mesos.slack.com/
archives/dev/p1481760285000430
Yosemite 10.10: Fail. Compilation error. (by @hausdorff
https://mesos.slack.com/archives/dev/p1481760552000435)
El Capitan 10.11: Fail. Compilation error. (by @zhitao
https://mesos.slack.com/files/zhitao/F3
+1
2016-12-15 7:27 GMT+08:00 Joris Van Remoortere :
> The time has come and we finally have `thread_local` support in the Apple
> tool chain:
> https://developer.apple.com/library/content/releasenotes/
> DeveloperTools/RN-Xcode/Introduction.html
>
> In our code base we have a special exception fo
The time has come and we finally have `thread_local` support in the Apple
tool chain:
https://developer.apple.com/library/content/releasenotes/DeveloperTools/RN-Xcode/Introduction.html
In our code base we have a special exception for Apple that defines our
thread local to be `__thread` rather than
10 matches
Mail list logo
