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__cpp_lib_formatSection: 17.3.2 [version.syn] Status: C++23 Submitter: Barry Revzin Opened: 2022-08-04 Last modified: 2023-11-22
Priority: Not Prioritized
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Discussion:
As pointed out by Casey Carter, four papers approved at the recent July 2022 plenary:
P2419R2 "Clarify handling of encodings in localized formatting of chrono types"
P2508R1 "Expose std::basic-format-string<charT, Args...>"
P2286R8 "Formatting Ranges"
P2585R1 "Improve container default formatting"
all bump the value of __cpp_lib_format. We never accounted for all of these papers
being moved at the same time, and these papers have fairly different implementation complexities.
__cpp_lib_format_ranges (with value 202207L) for the two formatting
ranges papers (P2286 and P2585, which should probably be implemented
concurrently anyway, since the latter modifies the former) and bump __cpp_lib_format for
the other two, which are both minor changes.
We should do that.
[2022-08-23; Reflector poll]
Set status to Tentatively Ready after 12 votes in favour during reflector poll.
[2022-11-12 Approved at November 2022 meeting in Kona. Status changed: Voting → WP.]
Proposed resolution:
Modify 17.3.2 [version.syn] as indicated:
#define __cpp_lib_format 202207L // also in <format> #define __cpp_lib_format_ranges 202207L // also in <format>