Am Mittwoch, dem 16.10.2024 um 13:27 +0200 schrieb Jakub Jelinek via Gcc: > Hi! > > https://en.cppreference.com/w/c/compiler_support > has a table with compiler support for C23. > I've added #embed and [[unsequenced]]/[[reproducible]] in there > yesterday, but am wondering about the accuracy of the rest. > > Given the switch to -std=gnu23 preparation, I wonder what is still > unimplemented in GCC 15. > The cppreference page mentions as unimplemented on the GCC side > N2653 - Type change of u8 string literals > and as only partially implemented > N2341 - IEEE 754 decimal floating-point types > N2601 - IEEE 754 interchange and extended types > N2900 - Empty initializers > N2934 - New spelling of keywords > N3033 - __VA_OPT__ > with following comments in the wiki source: > N2341: Only TR 24732 mentioned; some requirements in core language missing > N2601: Only TS 18661-3 mentioned; the status of conformance is unknown > N2900: missing support for scalars and VLAs
N2900 should be supported since 13.1 Martin > > Are some of the papers/features known to be fully implemented (since which > version)? E.g. for __VA_OPT__ I remember doing (and Jason too) various fixes > in the past few years, like PR89971, PR103415, PR101488. Not really sure > what exactly C23 requires. > > Jakub >
