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Refer to C23 in place of C2X in glibc

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WG14 decided to use the name C23 as the informal name of the next
revision of the C standard (notwithstanding the publication date in
2024).  Update references to C2X in glibc to use the C23 name.

This is intended to update everything *except* where it involves
renaming files (the changes involving renaming tests are intended to
be done separately).  In the case of the _ISOC2X_SOURCE feature test
macro - the only user-visible interface involved - support for that
macro is kept for backwards compatibility, while adding
_ISOC23_SOURCE.

Tested for x86_64.
This commit is contained in:
Joseph Myers
2024-02-01 11:02:01 +00:00
parent 7c8df0b944
commit 42cc619dfb
79 changed files with 300 additions and 278 deletions
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36
bits/libc-header-start.h
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@@ -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