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NB comment review: FR [format.string.std] codepoints with width 2

From: Tom Honermann <tom_at_[hidden]>
Date: Wed, 26 Oct 2022 11:55:44 -0400
Please review the following. If you agree with the proposed change and
have no further information to add, then there is no need to respond. If
you disagree with the proposed change, have corrections or new
information to offer, or have comments on the candidate polls, then
*please reply by Monday, October 31st*.

  FR [format.string.std]
  <http://eel.is/c++draft/format.string.std> codepoints with width 2

GitHub nbballot issue #409
LWG issue 3780 <https://wg21.link/lwg3780>.
P2675R0: LWG 3780: The Paper (format's width estimation is too
approximate and not forward compatible) <https://wg21.link/p2675r0>.


The range of codepoints to be considered of width 2 is not compatible
with recent and future unicode versions.

    Proposed change:

Please adopt LWG3780 for C++23, backported to C++20

    SG16 chair notes:

Thank you to Corentin for filing LWG issue 3780
<https://wg21.link/lwg3780> and for authoring P2675
<https://wg21.link/p2675> in response to requests for a more thorough
analysis of the consequences of the proposal.

    Candidate polls:

  * [FR-XX]: SG16 recommends resolving the comment by adopting P2675R0
  * [FR-XX]: SG16 recommends rejecting the comment but encourages
    consideration of P2675R0 <https://wg21.link/p2675r0> for a future
  * [FR-XX]: SG16 recommends rejecting the comment as not a defect.


Received on 2022-10-26 15:55:47