SG16 will hold a meeting *today*, Wednesday, September 24th, at 19:30
UTC (timezone conversion
<https://www.timeanddate.com/worldclock/converter.html?iso=20250924T193000&p1=1440&p2=tz_pdt&p3=tz_mdt&p4=tz_cdt&p5=tz_edt&p6=tz_cest>).

If you need a .ics file to import into your calendar, you can download
it here
<https://documents.isocpp.org/remote.php/dav/public-calendars/R7imgS2LJD9xfeWN/BD8B73CA-A2A2-45E0-A9AB-2946907DF646.ics?export>.

The agenda is:

  * P3688R3: ASCII character utilities <https://wg21.link/p3688r3>.
  * P3733R0: More named universal character escapes
    <https://wg21.link/p3733r0>.
  * P3695R1: Deprecate implicit conversions between Unicode character
    types <https://wg21.link/p3695r1>.

All three papers come to us courtesy of Jan Schultke with Corentin as a
co-author of the first. None of these papers have been previously
reviewed by SG16. I don't expect that we'll get through all three.

*P3688R3* seeks to provide a suite of utility functions specialized for
working with ASCII text or the ASCII subset of Unicode text. Predicates
for querying character properties, transformers for case conversions,
and case insensitive comparators are provided. As always, encoding
related design choices are present and I'm sure we'll have some fun
talking about that.

*P3733R0* proposes extending the set of character names available for
use in named character escapes to include ones for which we didn't have
a normative reference available back when P2071R2 (Named universal
character escapes) <https://wg21.link/p2071r2> was approved for C++23.
This include popular short names like NBSP and ZWJ.

*P3695R1* is sure to be the most fun of the bunch! It asks to deprecate
implicit conversions between char8_t and the other char/N/_t types so
that oopsies like c8==U'🙊' (where c8 is char8_t) can be diagnosed. Per
section 3.2, the proposal includes rationale for _not_ extending similar
deprecation to char16_t; thus the proposal will not solicit a diagnostic
for the always false c16==U'🙊' (where c16 is char16_t).

Tom.