mirror of git://sourceware.org/git/glibc.git
e535fb910c
C23 defines library macros __STDC_VERSION_<header>_H__ to indicate that a header has support for new / changed features from C23. Now that all the required library features are implemented in glibc, define these macros. I'm not sure this is sufficiently much of a user-visible feature to be worth a mention in NEWS. Tested for x86_64. There are various optional C23 features we don't yet have, of which I might look at the Annex H ones (floating-point encoding conversion functions and _Float16 functions) next. * Optional time bases TIME_MONOTONIC, TIME_ACTIVE, TIME_THREAD_ACTIVE. See <https://sourceware.org/pipermail/libc-alpha/2023-June/149264.html> - we need to review / update that patch. (I think patch 2/2, inventing new names for all the nonstandard CLOCK_* supported by the Linux kernel, is rather more dubious.) * Updating conform/ tests for C23. * Defining the rounding mode macro FE_TONEARESTFROMZERO for RISC-V (as far as I know, the only architecture supported by glibc that has hardware support for this rounding mode for binary floating point) and supporting it throughout glibc and its tests (especially the string/numeric conversions in both directions that explicitly handle each possible rounding mode, and various tests that do likewise). * Annex H floating-point encoding conversion functions. (It's not entirely clear which are optional even given support for Annex H; there's some wording applied inconsistently about only being required when non-arithmetic interchange formats are supported; see the comments I raised on the WG14 reflector on 23 Oct 2025.) * _Float16 functions (and other header and testcase support for this type). * Decimal floating-point support. * Fully supporting __int128 and unsigned __int128 as integer types wider than intmax_t, as permitted by C23. Would need doing in coordination with GCC, see GCC bug 113887 for more discussion of what's involved. |
||
|---|---|---|
| .. | ||
| bits | ||
| Depend | ||
| Makefile | ||
| Versions | ||
| _strerror.c | ||
| argz-addsep.c | ||
| argz-append.c | ||
| argz-count.c | ||
| argz-create.c | ||
| argz-ctsep.c | ||
| argz-delete.c | ||
| argz-extract.c | ||
| argz-insert.c | ||
| argz-next.c | ||
| argz-replace.c | ||
| argz-stringify.c | ||
| argz.h | ||
| basename.c | ||
| bcopy.c | ||
| bug-envz1.c | ||
| bug-strcoll1.c | ||
| bug-strcoll2.c | ||
| bug-strncat1.c | ||
| bug-strpbrk1.c | ||
| bug-strspn1.c | ||
| bug-strtok1.c | ||
| byteswap.h | ||
| bzero.c | ||
| endian.h | ||
| envz.c | ||
| envz.h | ||
| explicit_bzero.c | ||
| ffs.c | ||
| ffsll.c | ||
| inl-tester.c | ||
| memccpy.c | ||
| memchr.c | ||
| memcmp.c | ||
| memcmpeq.c | ||
| memcpy.c | ||
| memfrob.c | ||
| memmem.c | ||
| memmove.c | ||
| memory.h | ||
| mempcpy.c | ||
| memrchr.c | ||
| memset.c | ||
| memset_explicit.c | ||
| noinl-tester.c | ||
| rawmemchr.c | ||
| sigabbrev_np.c | ||
| sigdescr_np.c | ||
| stpcpy.c | ||
| stpncpy.c | ||
| str-two-way.h | ||
| stratcliff.c | ||
| strcasecmp.c | ||
| strcasecmp_l.c | ||
| strcasestr.c | ||
| strcat.c | ||
| strchr.c | ||
| strchrnul.c | ||
| strcmp.c | ||
| strcoll.c | ||
| strcoll_l.c | ||
| strcpy.c | ||
| strcspn.c | ||
| strdup.c | ||
| strerror.c | ||
| strerror_l.c | ||
| strerrordesc_np.c | ||
| strerrorname_np.c | ||
| strfry.c | ||
| string-inlines.c | ||
| string.h | ||
| strings.h | ||
| strlcat.c | ||
| strlcpy.c | ||
| strlen.c | ||
| strncase.c | ||
| strncase_l.c | ||
| strncat.c | ||
| strncmp.c | ||
| strncpy.c | ||
| strndup.c | ||
| strnlen.c | ||
| strpbrk.c | ||
| strrchr.c | ||
| strsep.c | ||
| strsignal.c | ||
| strspn.c | ||
| strstr.c | ||
| strtok.c | ||
| strtok_r.c | ||
| strverscmp.c | ||
| strxfrm.c | ||
| strxfrm_l.c | ||
| swab.c | ||
| test-Xncmp-nonarray.c | ||
| test-Xnlen-nonarray.c | ||
| test-bcopy.c | ||
| test-bzero.c | ||
| test-endian-file-scope.c | ||
| test-endian-sign-conversion.c | ||
| test-endian-types.c | ||
| test-explicit_bzero.c | ||
| test-ffs.c | ||
| test-memccpy.c | ||
| test-memchr.c | ||
| test-memcmp.c | ||
| test-memcmpeq.c | ||
| test-memcpy-large.c | ||
| test-memcpy-support.h | ||
| test-memcpy.c | ||
| test-memmem.c | ||
| test-memmove.c | ||
| test-mempcpy.c | ||
| test-memrchr.c | ||
| test-memset.c | ||
| test-memset_explicit.c | ||
| test-memswap.c | ||
| test-rawmemchr.c | ||
| test-sig_np.c | ||
| test-stpcpy.c | ||
| test-stpncpy.c | ||
| test-strcasecmp.c | ||
| test-strcasestr.c | ||
| test-strcat.c | ||
| test-strchr.c | ||
| test-strchrnul.c | ||
| test-strcmp.c | ||
| test-strcpy.c | ||
| test-strcspn.c | ||
| test-strdup.c | ||
| test-strerror-errno.c | ||
| test-string.h | ||
| test-strlen.c | ||
| test-strncasecmp.c | ||
| test-strncat.c | ||
| test-strncmp-nonarray.c | ||
| test-strncmp.c | ||
| test-strncpy.c | ||
| test-strndup.c | ||
| test-strnlen-nonarray.c | ||
| test-strnlen.c | ||
| test-strpbrk.c | ||
| test-strrchr.c | ||
| test-strspn.c | ||
| test-strstr.c | ||
| testcopy.c | ||
| tester.c | ||
| tst-bswap.c | ||
| tst-cmp.c | ||
| tst-const.c | ||
| tst-endian.c | ||
| tst-inlcall.c | ||
| tst-memmove-overflow.c | ||
| tst-strcoll-overflow.c | ||
| tst-strerror-fail.c | ||
| tst-strerror.c | ||
| tst-strfry.c | ||
| tst-strlcat.c | ||
| tst-strlcat2.c | ||
| tst-strlcpy.c | ||
| tst-strlcpy2.c | ||
| tst-strlen.c | ||
| tst-strsignal.c | ||
| tst-strtok.c | ||
| tst-strtok_r.c | ||
| tst-strxfrm.c | ||
| tst-strxfrm2.c | ||
| tst-svc.c | ||
| tst-svc.expect | ||
| tst-svc.input | ||
| tst-svc2.c | ||
| tst-xbzero-opt.c | ||
| tst-xmemset-opt.c | ||
| wordcopy.c | ||
| xpg-strerror.c | ||