What is new in C and POSIX?

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" summary

C23 is now an ISO standard published 2024 and POSIX 2024 collects many de facto practices into a formal API, while PostgreSQL still targets C99 and POSIX 2008 so adoption matters. New, usable items include openat/at functions for race resistant filesystem ops, C23 keywords like null_ptr and embed for safer constants and embedding files, standardized attributes and generic selection for compile time type dispatch. GCC 14/15 and clang 18 already implement most features, Windows still lacks many POSIX pieces and moving to a C11 baseline plus raising MSVC minimum to 2019 is proposed.

AI-written summary · about

" chapters (8)

1. 0:00Introduction and context
2. 1:53C and POSIX fundamentals
3. 7:30Standards bodies and versions
4. 13:41POSIX.1-2008 developments
5. 16:01POSIX.1-2024 features
6. 20:03C11 language enhancements
7. 34:29C23 language and standard
8. 48:07Future and conclusions

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