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POSIX 2004 Changes

Jonas 'Sortie' Termansen on 2024-06-28 POSIX.1-2024 has just been released with a lot of exciting and interesting improvements and removals compared to POSIX-1.2008. The html version of the standard has not been uploaded yet as of this writing.

I can't think of anything useful a portable POSIX application can do with this information, although the austin group bug suggests it can be open files relative to the shared object (which seems a bit hacky). I still need to remember the fast algorithm for memmem which I learned in university and I'm having fun figuring it out from first principles, but I didn't solve it fully yet, and decided to focus on the rest of POSIX 2024. asctime_r, ctime_r: The functions are considered deprecated and problematic in Sortix as they are poorly designed and the output format isn't very useful and they suffer from year 10000 problems.

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