LO 24.2 C++20 baseline

[Andreas Mantke]

Hi Stephan,

I tried to compile from master on openSUSE 15.4 without success yet. It
complains about the compiler (the current tool chain is gcc 7).

Regards,
Andreas

Am 22.09.23 um 09:20 schrieb Stephan Bergmann:
> I just submitted
> <https://git.libreoffice.org/core/+/1eef07805021b7ca26a1a8894809b6d995747ba1%5E%21>
> "Bump baseline to C++20" to master.  I will let it sit like that for a
> few more days, to see if anything breaks (Coverity? Linux distros'
> needs? etc.), before cleaning up now-unnecessary `#if __cplusplus <
> 202002L` etc., and before potentially unleashing the rewriting Clang
> plugin to mass-introduce uses of u""_ustr that I talked about
> yesterday at <https://events.documentfoundation.org/libreoffice-conference-2023/talk/U9XTSL/>
> "If I Had C++20".
>