[llvm-dev] PSA: Parallel STL algorithms available in LLVM

[Zachary Turner via llvm-dev]

When you say a "non normative note" does this imply that a library
implementer would be free to ignore the note?
On Wed, May 17, 2017 at 7:38 AM Zachary Turner <zturner at google.com> wrote:

> Yes, I would hate for some library implementer to either interpret the
> standard differently or simply not consider the issue of recursive
> parallelism at all and end up with an implementation that doesn't support
> it (not that unlikely considering it went 1.5 years through committee as
> you said and the topic never came up).
>
>
> On Wed, May 17, 2017 at 7:25 AM Bryce Lelbach <balelbach at lbl.gov> wrote:
>
>> On Fri, May 12, 2017 at 9:19 AM, Zachary Turner <zturner at google.com>
>> wrote:
>> > Even without a concrete use case, I agree that it's absolutely
>> imperative
>> > for the standard to require this of a conforming implementation. It's
>> going
>> > to be the source of so many problems otherwise
>>
>> To confirm - what you'd like is clarification in the standard that
>> recursive parallelism is supported?
>>
>> I think this is feasible; I'd suggest a non-normative note. I could
>> write a short committee paper on this (targeting C++20) for the next
>> meeting.
>>
>> --
>> Bryce Adelstein Lelbach aka wash
>> Lawrence Berkeley National Laboratory
>> ISO C++ Committee Member
>> CppCon and C++Now Program Chair
>>
>> Compiler ICE Hunter
>> --
>>
>
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