I'm working on adding various C2x features to the C front end (and elsewhere in GCC as applicable).
I suspect I won't get all the C2x features done for GCC 13. If anyone else is interested in adding C2x features, I'd encourage looking at some of the following, which I may well not get to for GCC 13 (and posting here to avoid duplication of effort if working on such a feature): * Bit-precise integer types (_BitInt) (see bug 102989) (integrated version based on N2763, plus literal suffixes from N2775 and bit-fields from N2969). Would require working with back-end maintainers and upstream ABI groups, where available, to get ABIs defined for as many architectures as possible, as well as some default ABI choice in GCC for architectures that haven't defined the ABI for these types. * [[unsequenced]] and [[reproducible]] attributes for function types. See N2956. These are supposed to be similar to const and pure attributes, at least in the absence of pointer and array function parameters (but note they never affect type compatibility). * Tag compatibility (N3037, alternative wording). Martin Uecker might have patches for a draft version of this? * Preprocessor #embed (N3017) (see bug 105863). -- Joseph S. Myers jos...@codesourcery.com
