2023 Telecons

History, status, and review outcomes can be found by visiting the GitHub Issue for the paper: wg21.link/PNNNN/github.

Scheduled

Subject	Bucket	Minutes	Chair	Date & Time
**Administrative Information** P3019R3: Vocabulary Types for Composite Class Design	B3	P3019 Minutes	Inbal Levi	2023-11-21 16:00 to 17:30 UTC (time shifted)
P1068R9: Vector API for random number generation P2075R3: Philox as an extension of the C++ RNG engines P1255R10: A view of 0 or 1 elements: views::maybe (tentative)	B2 (issue from LWG) B3 B3	P1068 Minutes P2075 Minutes P1255 Minutes	Ben Craig	2023-11-28 16:00 to 17:30 UTC
P2945R0: Additional format specifiers for time_point (tentative) P3015R0: Rebuttal to Additional format specifiers for time_point (tentative)	B2 B2 (Address P2945)	P3015 Minutes P2945 Minutes	Fabio Fracassi	2023-12-05 16:00 to 17:30 UTC
P2875R1: Undeprecate polymorphic_allocator::destroy For C++26 (tentative) P2968R0: Make std::ignore a first-class object	B3 B3	P2875 Minutes P2968 Minutes	TBD	2023-12-12 16:00 to 17:30 UTC
P2999R2: Sender Algorithm Customization (tentative)	B3	P2999 Minutes	TBD	2023-12-19 16:00 to 17:30 UTC

Unscheduled

P2876R0: Proposal to extend std::simd with more constructors and accessors P2846R1: size_hint: Eagerly reserving memory for not-quite-sized lazy ranges P2997R0: Removing the common reference requirement from the indirectly invocable concepts P2786R3: Trivial Relocatability For C++26 P2959R0: Container Relocation P2967R0: Relocation Is A Library Interface P2988R0: std::optional P2689R2: atomic_accessor P1030R6: std::filesystem::path_view P2921R0: Exploring std::expected based API alternatives for buffer_queue P0260R6: C++ Concurrent Queues P2141R1: Aggregates are named tuples P2897R1: aligned_accessor: An mdspan accessor expressing pointer overalignment P2929R0: simd_invoke P2933R0: std::simd overloads for standard C++ header P2956R0: Add saturating library support to std::simd P2985R0: A type trait for detecting virtual base classes P1708R0: Simple Statstics functions

B2 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3 B3

P2876 Minutes P2846 Minutes P2997 Minutes P2786 Minutes P2959 Minutes P2967 Minutes P2988 Minutes P2689 Minutes P1030 Minutes P2921 Minutes P0260 Minutes P2141 Minutes P2897 Minutes P2929 Minutes P2933 Minutes P2956 Minutes P2985 Minutes P1708 Minutes

TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD

2023-XX-XX 16:00 to 17:30 UTC

Major Topics for C++26

• Senders and receivers.
  • async_scope.
  • Parallel algorithms integration.
• Customization points.
• Ranges.
• Linear algebra and mdspan.
  • mdarray.
• Networking.
• std::hive.
• Numerics.
• Freestanding.
• Coroutines.
  • std::lazy.
• Reflection.
• std::simd.
• RCU and hazard pointers.

Past

Subject	Bucket	Minutes	Chair	Date & Time
P2406R2: Add lazy_counted_iterator LWG3679: Is <ranges> sufficient for istream_view? LWG3810: CTAD for basic_format_args LWG3840: filesystem::u8path should be undeprecated P2675R1: format's width estimation is too approximate and not forward compatible	B2 B2 B2 B2 B2	P2406R2 Minutes LWG3679 Minutes LWG3810 Minutes LWG3840 Minutes P2675R1 Minutes	Bryce Adelstein Lelbach	2023-01-10 16:00 to 17:30 UTC
P2727R0: iterator_interface P2725R0: integral_constant Literals P2772R0: constexpr_t	B3 B3 B3	P2727 Minutes P2725 Minutes P2772 Minutes	Bryce Adelstein Lelbach	2023-01-17 16:00 to 17:30 UTC
P2019R2: Thread Attributes	B2	P2019 Minutes	Bryce Adelstein Lelbach	2023-01-24 16:00 to 17:30 UTC
2023-02 Issaquah Meeting Planning	B1	Minutes	Bryce Adelstein Lelbach	2023-01-31 16:00 to 17:30 UTC
P2548R4: copyable_function P2714R0: Bind front and back to NTTP callables P2757R0: Type checking format args	B3 B2 B2	P2548 Minutes P2714 Minutes P2757 Minutes	Bryce Adelstein Lelbach	2023-03-07 16:00 to 17:30 UTC
P1068R6: Vector API for random number generation	B3	P1068 Minutes	Ben Craig	2023-03-14 15:00 to 16:30 UTC (time shifted for DST)
P2727R1: iterator_interface	B3	P2727 Minutes	Fabio Fracassi	2023-03-21 15:00 to 16:30 UTC
P2642R2: Padded mdspan layouts	B2	P2642 Minutes	Billy Baker	2023-03-28 15:00 to 16:30 UTC
P2616R4: atomic notification tokens P2689R1: atomic_accessor	B2 B3	P2616 Minutes P2689 Minutes	Fabio Fracassi	2023-04-04 14:00 to 15:30 UTC (special time)
P2757R1: Type checking format args P2637R1: Member visit P2641R2: Checking if a union alternative is active	B2 B2 B2	P2757 Minutes P2637 Minutes P2641 Minutes	Nevin Liber	2023-04-11 15:00 to 16:30 UTC
P2591R3: Concatenation of strings and string views	B2	P2591 Minutes	Billy Baker	2023-04-18 15:00 to 16:30 UTC
P2664R2: simd permutation API	B2	P2664 Minutes	Ben Craig	2023-05-02 15:00 to 16:30 UTC
P2781R1: constexpr_v	B3	P2781 Minutes	Bryce Adelstein Lelbach	2023-05-16 15:00 to 16:30 UTC
D2836R1: std::basic_const_iterator should follow its underlying type’s convertibility	B2	P2836 Minutes	Fabio Fracassi	2023-07-11 15:00 to 16:30 UTC
P2821R3: span.at() P2591R4: Concatenation of strings and string views Github Issue1580: LWG2095 & LWG3003	B3 B3	P2821 Minutes P2591 Minutes LWG3003 Minutes	Fabio Fracassi	2023-07-25 15:00 to 16:30 UTC
P2019R3: Thread attributes P2880R0: Algorithm-like vs std::simd based RNG API D1068R8: Vector API for random number generation	B3 B3 B3	P2019 Minutes P2880 Minutes P1068 Minutes	Billy Baker	2023-08-08 15:00 to 16:30 UTC
P2944R1: Comparisons for reference_wrapper P2945R0: Additional format specifiers for time_point P2930R0: Formatter specializations for the standard library	B3 B3 B3	P2944 Minutes P2945 Minutes P2930 Minutes	Ben Craig	2023-08-22 15:00 to 16:30 UTC
P2019R3: Thread attributes	B3	P2019 Minutes	Fabio Fracassi	2023-09-05 15:00 to 16:30 UTC
P2909R1: Fix formatting of code units as integers P2833R1: Freestanding Library: inout expected span P2447R4: std::span over an initializer list	B3 B3 B2	P2909 Minutes P2833 Minutes P2447 Minutes	Fabio Fracassi	2023-09-12 15:00 to 16:30 UTC
D2542R6: views::concat P2810R1: is_debugger_present is_replaceable	B3 B2	P2542 Minutes P2810 Minutes	Ben Craig Corentin Jabot	2023-09-19 15:00 to 16:30 UTC
P2141R1: Aggregates are named tuples P2075R2: Philox as an extension of the C++ RNG engines	B3 B3	P2141 Minutes P2075 Minutes	Ben Craig	2023-09-26 15:00 to 16:30 UTC
P2897R0: aligned_accessor: An mdspan accessor expressing pointer overalignment P2642R3: Padded mdspan layouts	B3 B3	P2897 Minutes P2642 Minutes	Ben Craig	2023-10-10 15:00 to 16:30 UTC
P2767R1: flat_map/flat_set omnibus	B3 B2	P2767 Minutes	Fabio Fracassi	2023-10-17 15:00 to 16:30 UTC
P2901R0: Extending linear algebra support to batched operations 2023-11 Kona Meeting Schedule	B3 -	P2901 Minutes Kona 2023-11 Schedule	Billy Baker Inbal Levi	2023-10-24 15:00 to 16:30 UTC