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Re: [isocpp-lib-ext] SG7 Meeting P1240R2 part 2 on February 23th at 16:00 UTC

From: Jonathan O'Connor <jonathan.oconnor_at_[hidden]>
Date: Tue, 22 Feb 2022 10:08:39 +0000
Matus, is there a way to print the Value-based-vs-type-based PDF with a white background. I don't think I have that much toner, and I like to print out these documents and then annotate them in pencil.

Mobile: +353 86 824 9736

------- Original Message -------
On Tuesday, February 22nd, 2022 at 06:41, Matus Chochlik via SG7 <sg7_at_[hidden]> wrote:

> Hi SG7
> On Tue, Feb 8, 2022 at 11:17 AM Hana Dusíková via Lib-Ext <lib-ext_at_[hidden]> wrote:
>> Hello wonderful SG7! (and LEWG + EWG) ❤️
>> We will have a reflection meeting where we will continue discussion about P1240R2 (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p1240r2.pdf)
>> Daveed will continue with his presentation from last time.
> If at all possible I'd like for us also to have a discussion about the direction and maybe some subsequent actions.
> I have made some slides comparing the "value-based" (VB, aka "non-hana-consteval") vs. "type-based" (TB, I guess "hana-consteval") reflection designs and also quite a lot of measurements of compilation-times:
> https://matus-chochlik.github.io/mirror/latex/value_vs_type_based.pdf
> Some of the rationale for the current design is backed by claims that:
> 1) the TB design results in 2 orders of magnitude longer compile-times compared to VB and even that the TB case exhibits exponential growth in compile time while the VB case doesn't.
> 2) STL algorithms can be reused with the VB API (vector<meta::info>) without any change.
> The measurements don't show the former and the latter is true only for cases that don't involve splicing.
> As I have already mentioned; anecdotally 9 out of 10 use-cases that I have implemented actually do require splicing.
> I'd like to see if we have consensus on the current direction (ideally by doing another vote on that).
>> ⚡️ Meeting will start February 23th (Wednesday) at 16:00 UTC (11am EST, 8am PCT, 17:00 CET) over zoom:
>> https://iso.zoom.us/j/97957398677?pwd=OWRQSGtJbDhpUmN2bVBlZ0htN24xdz09
>> 🕠 Expected duration for this meeting will be hour and half.
> --Matus

Received on 2022-02-22 10:08:42