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authornil <niljo@airmail.cc>2025-01-14 20:16:17 +0100
committernil <niljo@airmail.cc>2025-01-14 20:16:17 +0100
commit9cd3e10283ea0c6cc997afc5353c0f314b3aa092 (patch)
tree4aa0ae912633a0f3e7a7d1405469bb7009cef1ba /.ccls-cache/@@home@niliara@configs/@usr@include@bits@libc-header-start.h
parent23a62d70129db30027ba620fc798a666c198ba35 (diff)
changing host repositorymain
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+/* Handle feature test macros at the start of a header.
+ Copyright (C) 2016-2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* This header is internal to glibc and should not be included outside
+ of glibc headers. Headers including it must define
+ __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION first. This header
+ cannot have multiple include guards because ISO C feature test
+ macros depend on the definition of the macro when an affected
+ header is included, not when the first system header is
+ included. */
+
+#ifndef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+# error "Never include <bits/libc-header-start.h> directly."
+#endif
+
+#undef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+
+#include <features.h>
+
+/* ISO/IEC TR 24731-2:2010 defines the __STDC_WANT_LIB_EXT2__
+ macro. */
+#undef __GLIBC_USE_LIB_EXT2
+#if (defined __USE_GNU \
+ || (defined __STDC_WANT_LIB_EXT2__ && __STDC_WANT_LIB_EXT2__ > 0))
+# define __GLIBC_USE_LIB_EXT2 1
+#else
+# define __GLIBC_USE_LIB_EXT2 0
+#endif
+
+/* 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 C23. In C23, the symbols in
+ Annex F still require a new feature test macro
+ __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 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 C23.
+
+ __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 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.) */
+#undef __GLIBC_USE_IEC_60559_BFP_EXT
+#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_BFP_EXT__
+# define __GLIBC_USE_IEC_60559_BFP_EXT 1
+#else
+# define __GLIBC_USE_IEC_60559_BFP_EXT 0
+#endif
+#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_C23 0
+#endif
+#undef __GLIBC_USE_IEC_60559_EXT
+#if __GLIBC_USE (IEC_60559_BFP_EXT) || defined __STDC_WANT_IEC_60559_EXT__
+# define __GLIBC_USE_IEC_60559_EXT 1
+#else
+# define __GLIBC_USE_IEC_60559_EXT 0
+#endif
+
+/* 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
+ 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_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_C23 0
+#endif
+
+/* ISO/IEC TS 18661-3:2015 defines the
+ __STDC_WANT_IEC_60559_TYPES_EXT__ macro. */
+#undef __GLIBC_USE_IEC_60559_TYPES_EXT
+#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_TYPES_EXT__
+# define __GLIBC_USE_IEC_60559_TYPES_EXT 1
+#else
+# define __GLIBC_USE_IEC_60559_TYPES_EXT 0
+#endif