New revision: https://isocpp.org/files/papers/P2372R1.html

D2372R0: Fixing locale handling in chrono formatters

D2372R0: Fixing locale handling in chrono formatters

2021-05-03 Library Evolution Telecon Minutes

Chair: Ben Craig

Champion: Victor Zverovich

Minute Taker: Inbal Levi

Start: 2021-05-03

POLL: Revise D2372 to keep the ostream operators for chrono formatting dependent on the stream locale

Attendance: 28

# of Authors: 2

Author Position: SF, N

Outcome: Strong Consensus in Favor

POLL: LEWG approves of the direction of this work and encourages further work as directed above with the intent that D2372 (Fixing locale handling in chrono formatters) will land in C++23 and be applied retroactively to C++20

Attendance: 28

# of Authors: 2

Author Position: SF, SF

Outcome: Unanimous approval

Action for SG16: Retake poll on the direction. Capture the direction in that poll.

Action for Charlie Barto and Victor: Talk with STL (the person) to ensure he is aware of the likely coming changes. Also talk with Nico Josuttis, since he is working on a book.

As noted in the minutes for the LEWG 2021-05-03 telecon, LEWG requested that SG16 affirm LEWG's direction regarding P2372 as indicated by polls in prior comments. This request was made because prior SG16 polls of the proposed resolution of LWG3547 did not indicate consensus for that direction as indicated in the minutes from the SG16 telecon held 2021-04-28.

SG16 conducted the following poll during our 2021-05-12 telecon and did affirm LEWG's direction.

POLL: Forward D2372R1 to LEWG for inclusion in C++23 and with the intent that it be applied retroactively to C++20.

Attendance: 8

Outcome: Strong consensus in favor.

Note that D2372R1 contains the LEWG requested changes to preserve locale dependent formatting for ostream formatters.

My perception is that SG16's change in consensus is attributable to two factors:

1. New information that arrived after the initial poll.
2. SG16's original poll targeted C++23 while LEWG's poll targeted C++23 and C++20 as a DR; some concerns had previously been expressed regarding backward compatibility and migration.

P2372R1 Fixing locale handling in chrono formatters (Victor Zverovich, Corentin Jabot)

2021-06-08 Library Evolution Telecon

P2372R1: Fixing locale handling in chrono formatters

2021-06-08 Library Evolution Telecon Minutes

Chair: Ben Craig

Champion: Victor Zverovich

Minute Taker: Inbal Levi

POLL: Send P2372R1 (Fixing locale handling in chrono formatters) to LWG for C++23 IS with priority 2 (Fixes), with the intent that it be applied retroactively to implementation's C++20 modes (to be confirmed with a Library Evolution electronic poll).

Attendance: 23

# of Authors: 2

Author Position: SF, SF

Outcome: Strong consensus in favor

Summary

Victor brought the requested revisions, along with a few drive by fixes. The window for applying retroactive changes is almost closed at this point.

Outcome

Put in the next electronic poll. Targeting LWG and the C++23 IS with priority 2 (fixes), and applied retroactively to implementation's C++20 modes.

The paper is being placed on the Summer 2021 electronic ballot.

P2372R2 Fixing locale handling in chrono formatters (Victor Zverovich, Corentin Jabot)

2021 Summer Library Evolution Polls

P2435: 2021 Summer Library Evolution Poll Outcomes

POLL 2: Send P2372R1 (Fixing Locale Handling In Chrono Formatters) to Library Working Group for C++23, classified as an improvement of an existing feature (P0592R4 bucket 2 item), with the recommendation that implementations retroactively apply it to C++20.

Outcome: Unanimous consensus in favor.

LWG reviewed and approved for c++23 and as a defect for C++20 on 2021-09-17

https://wiki.edg.com/bin/view/Wg21telecons2021/P2372-20210917

poll: put p2372r3 into the C++23 working paper?

poll: have p2372r3 as a DR for C++20?

P2372R3 Fixing locale handling in chrono formatters (Victor Zverovich, Corentin Jabot)

Adopted 2021-10.