diff options
79 files changed, 300 insertions, 278 deletions
@@ -14,6 +14,13 @@ Major new features: in order to support unsigned __int128 and/or unsigned _BitInt(N) operands with arbitrary precisions when supported by the target. +* The GNU C Library now supports a feature test macro _ISOC23_SOURCE to + enable features from the ISO C23 standard. Only some features from + this standard are supported by the GNU C Library. The older name + _ISOC2X_SOURCE is still supported. Features from C23 are also enabled + by _GNU_SOURCE, or by compiling with the GCC options -std=c23, + -std=gnu23, -std=c2x or -std=gnu2x. + Deprecated and removed features, and other changes affecting compatibility: [Add deprecations, removals and changes affecting compatibility here] diff --git a/bits/fenv.h b/bits/fenv.h index 9f19295d65..aa0c549d4a 100644 --- a/bits/fenv.h +++ b/bits/fenv.h @@ -54,7 +54,7 @@ fenv_t; /* If the default argument is used we use this value. */ #define FE_DFL_ENV ((const fenv_t *) -1l) -#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X) +#if __GLIBC_USE (IEC_60559_BFP_EXT_C23) /* Type representing floating-point control modes. */ typedef unsigned int femode_t; diff --git a/bits/libc-header-start.h b/bits/libc-header-start.h index d841f5d8cf..4ab1304b0d 100644 --- a/bits/libc-header-start.h +++ b/bits/libc-header-start.h @@ -44,23 +44,23 @@ /* ISO/IEC TS 18661-1:2014 defines the __STDC_WANT_IEC_60559_BFP_EXT__ macro. Most but not all symbols enabled by that macro in TS - 18661-1 are enabled unconditionally in C2X. In C2X, the symbols in + 18661-1 are enabled unconditionally in C23. In C23, the symbols in Annex F still require a new feature test macro - __STDC_WANT_IEC_60559_EXT__ instead (C2X does not define + __STDC_WANT_IEC_60559_EXT__ instead (C23 does not define __STDC_WANT_IEC_60559_BFP_EXT__), while a few features from TS - 18661-1 are not included in C2X (and thus should depend on - __STDC_WANT_IEC_60559_BFP_EXT__ even when C2X features are + 18661-1 are not included in C23 (and thus should depend on + __STDC_WANT_IEC_60559_BFP_EXT__ even when C23 features are enabled). __GLIBC_USE (IEC_60559_BFP_EXT) controls those features from TS - 18661-1 not included in C2X. + 18661-1 not included in C23. - __GLIBC_USE (IEC_60559_BFP_EXT_C2X) controls those features from TS - 18661-1 that are also included in C2X (with no feature test macro - required in C2X). + __GLIBC_USE (IEC_60559_BFP_EXT_C23) controls those features from TS + 18661-1 that are also included in C23 (with no feature test macro + required in C23). __GLIBC_USE (IEC_60559_EXT) controls those features from TS 18661-1 - that are included in C2X but conditional on + that are included in C23 but conditional on __STDC_WANT_IEC_60559_EXT__. (There are currently no features conditional on __STDC_WANT_IEC_60559_EXT__ that are not in TS 18661-1.) */ @@ -70,11 +70,11 @@ #else # define __GLIBC_USE_IEC_60559_BFP_EXT 0 #endif -#undef __GLIBC_USE_IEC_60559_BFP_EXT_C2X -#if __GLIBC_USE (IEC_60559_BFP_EXT) || __GLIBC_USE (ISOC2X) -# define __GLIBC_USE_IEC_60559_BFP_EXT_C2X 1 +#undef __GLIBC_USE_IEC_60559_BFP_EXT_C23 +#if __GLIBC_USE (IEC_60559_BFP_EXT) || __GLIBC_USE (ISOC23) +# define __GLIBC_USE_IEC_60559_BFP_EXT_C23 1 #else -# define __GLIBC_USE_IEC_60559_BFP_EXT_C2X 0 +# define __GLIBC_USE_IEC_60559_BFP_EXT_C23 0 #endif #undef __GLIBC_USE_IEC_60559_EXT #if __GLIBC_USE (IEC_60559_BFP_EXT) || defined __STDC_WANT_IEC_60559_EXT__ @@ -86,18 +86,18 @@ /* ISO/IEC TS 18661-4:2015 defines the __STDC_WANT_IEC_60559_FUNCS_EXT__ macro. Other than the reduction functions, the symbols from this TS are enabled unconditionally in - C2X. */ + C23. */ #undef __GLIBC_USE_IEC_60559_FUNCS_EXT #if defined __USE_GNU || defined __STDC_WANT_IEC_60559_FUNCS_EXT__ # define __GLIBC_USE_IEC_60559_FUNCS_EXT 1 #else # define __GLIBC_USE_IEC_60559_FUNCS_EXT 0 #endif -#undef __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X -#if __GLIBC_USE (IEC_60559_FUNCS_EXT) || __GLIBC_USE (ISOC2X) -# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X 1 +#undef __GLIBC_USE_IEC_60559_FUNCS_EXT_C23 +#if __GLIBC_USE (IEC_60559_FUNCS_EXT) || __GLIBC_USE (ISOC23) +# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C23 1 #else -# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X 0 +# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C23 0 #endif /* ISO/IEC TS 18661-3:2015 defines the diff --git a/include/features.h b/include/features.h index fc164d332a..d92503dfed 100644 --- a/include/features.h +++ b/include/features.h @@ -24,7 +24,8 @@ __STRICT_ANSI__ ISO Standard C. _ISOC99_SOURCE Extensions to ISO C89 from ISO C99. _ISOC11_SOURCE Extensions to ISO C99 from ISO C11. - _ISOC2X_SOURCE Extensions to ISO C99 from ISO C2X. + _ISOC23_SOURCE Extensions to ISO C99 from ISO C23. + _ISOC2X_SOURCE Old name for _ISOC23_SOURCE. __STDC_WANT_LIB_EXT2__ Extensions to ISO C99 from TR 27431-2:2010. __STDC_WANT_IEC_60559_BFP_EXT__ @@ -34,7 +35,7 @@ __STDC_WANT_IEC_60559_TYPES_EXT__ Extensions to ISO C11 from TS 18661-3:2015. __STDC_WANT_IEC_60559_EXT__ - ISO C2X interfaces defined only in Annex F. + ISO C23 interfaces defined only in Annex F. _POSIX_SOURCE IEEE Std 1003.1. _POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2; @@ -148,10 +149,10 @@ #undef __USE_GNU #undef __USE_FORTIFY_LEVEL #undef __KERNEL_STRICT_NAMES -#undef __GLIBC_USE_ISOC2X +#undef __GLIBC_USE_ISOC23 #undef __GLIBC_USE_DEPRECATED_GETS #undef __GLIBC_USE_DEPRECATED_SCANF -#undef __GLIBC_USE_C2X_STRTOL +#undef __GLIBC_USE_C23_STRTOL < |