Hi,
I have unsubscribed many times but still receiving emails. I do not work with C++ right now.
Could you please remove me from the list. Thanks a lot.
------------------------------------------------
Dr Leanne Dong
IoT coordinator at ESQ




> On 18 Apr 2024, at 10:00 PM, sg19-request_at_[hidden] wrote:
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> Today's Topics:
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> 1. Comments from Tokyo & SG19 (Phil Ratzloff)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 17 Apr 2024 14:20:39 +0000
> From: Phil Ratzloff <Phil.Ratzloff_at_[hidden]>
> To: "sg19_at_[hidden]" <sg19_at_[hidden]>
> Subject: [SG19] Comments from Tokyo & SG19
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> In Tokyo, Guy shared a couple concerns:
>
> 1. The definitions of concepts in the proposal would be looked at skeptically because they are impossible to change once created. My response was that a graph (adjacency list) is a range-of-ranges, which is different than the one-dimensional ranges in the standard today. Because of that, they warrant their own concepts.
> 2. After showing early work using coroutines as a possibility for implementing more versatile BFS, Guy was concerned that it might be viewed with skepticism as a "novel" approach.
>
> Since then I have added comments to all concept definitions with "For exposition only" in both the paper and the code.
>
> In our last SG19 meeting with Andrew, Michael and Jens we discussed Guy's concerns:
>
> 1. There was agreement that marking concepts as "For exposition only" was a reasonable approach and that LEWG would weigh in later.
> 2. It was pointed out that iterating on a tree using a coroutine-based generator was a common example used, so the use of coroutines for something like DFS and BFS wasn't novel.
>
> I am working on comparing both coroutines and visitors WRT performance and usage.
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