On Wed, Dec 13, 2023 at 3:29 AM Tom Honermann via SG16 <
sg16_at_[hidden]> wrote:

> On 12/12/23 6:46 PM, Victor Zverovich wrote:
>
> > I think it is worth noting that C++23 makes it possible, for the first
> time, to write a proper version of hello world in C++.
>
> This is quite a milestone!
>
> In my opinion we should think bigger and tackle the rest of formatted I/O
> so that we have a proper alternative for all of the stdio and iostreams,
> and not just parts of them. Elias made great progress on P1729 and I've
> been investigating how to make it work better with C streams. Hopefully
> SG16 will have cycles for this paper next year.
>
> Bigger is good! And yes, continuing review of P1729 is high on my priority
> list.
>
> For reference, here are the papers that I have at the top of my list to
> schedule for upcoming meetings, in no particular order. In some cases I
> need to circle back with authors to confirm whether these are ready for
> further review.
>
> - P1729: Text Parsing
> - P2626: charN_t incremental adoption: Casting pointers of UTF
> character types
> - P2348: Whitespaces Wording Revamp
> - P2749: Down with ”character”
> - P2728: Unicode in the Library, Part 1: UTF Transcoding
> - P2729: Unicode in the Library, Part 2: Normalization
>
>
> It would also be good to have at least parts of the Unicode database
> available since it is an important building block for other facilities
> (including std::format) and it is very unfortunate that we only get to use
> it internally.
>
> I agree. I think the challenge is balancing interface simplicity and
> stability with enabling good performance with enabling use in constexpr
> context. But I could be overthinking things.
>

With modules/embed/etc the strategies for efficient constexpr
implementations are there... I'm happy to bring back that paper.
It's a fairly simple interface, the question is really with the subset of
properties we want. Most of the work is for the implementations to generate
efficient tables/lookup, which is QoL that can be refined over time.



> Tom.
>
>
> Cheers,
> Victor
>
>
> On Mon, Dec 11, 2023 at 3:49 PM Tom Honermann via SG16 <
> sg16_at_[hidden]> wrote:
>
>> As we head into the end of year holidays, it is a good time to start
>> thinking about our collective wishes for the next year. Please share your
>> thoughts on what you would most like to see SG16 focus on and/or accomplish
>> next year. Don't be afraid to dream big!
>>
>> I think it is worth noting that C++23 makes it possible, for the first
>> time, to write a proper version of hello world in C++. The following is now
>> standard, portable, C++! https://godbolt.org/z/PYr184q6v
>>
>> #include <print>
>> int main() {
>> std::println("👋 🌍");
>> }
>>
>> With a little luck, that Compiler Explorer link will demonstrate a
>> working implementation for gcc in the not too distant future! Perhaps 2024
>> will also bring back the ability to execute code compiled by the Microsoft
>> compiler on godbolt.org (I said to dream big!) I did verify locally that
>> the Microsoft implementation behaves as expected (when the resulting
>> executable is run inside Microsoft's new terminal).
>>
>> When SG16 was first formed back in 2018, I was asked to contribute a brief
>> bio <https://isocpp.org/wiki/faq/wg21#tom-honermann> to add to the WG21
>> committee members hosted on isocpp.org. A request for a favorite code
>> fragment was included and I decided to go with the following forward
>> looking example.
>>
>> #include <program_arguments>
>> #include <environment>
>> #include <print>
>> int main() {
>> std::print(u8"👋 🌍\n"); // Hello world in the universal language of
>> emoji!
>> std::print(u8"Hello {}!\n", environment["USER"].as_u8string());
>> std::print(u8"This program is {}\n", program_arguments[0].as_path());
>> }
>>
>> We're making progress! My personal wish list for 2024 includes getting
>> the rest of this (or something quite like it) working as standard C++.
>>
>> Thank you all for the contributions you bring to SG16 and WG21!
>>
>> Tom.
>> --
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>>
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