include/ansidecl.h: import from binutils-gdb
Import include/ansidecl.h version from 2024-01-04, binutils-gdb commit fd67aa1129fd. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Corinna Vinschen
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10c8c1cf4f
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@ -1,5 +1,5 @@
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/* ANSI and traditional C compatability macros
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Copyright (C) 1991-2015 Free Software Foundation, Inc.
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/* Compiler compatibility macros
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Copyright (C) 1991-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software; you can redistribute it and/or modify
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@ -16,18 +16,7 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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/* ANSI and traditional C compatibility macros
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ANSI C is assumed if __STDC__ is #defined.
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Macro ANSI C definition Traditional C definition
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----- ---- - ---------- ----------- - ----------
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PTR `void *' `char *'
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const not defined `'
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volatile not defined `'
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signed not defined `'
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For ease of writing code which uses GCC extensions but needs to be
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/* For ease of writing code which uses GCC extensions but needs to be
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portable to other compilers, we provide the GCC_VERSION macro that
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simplifies testing __GNUC__ and __GNUC_MINOR__ together, and various
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wrappers around __attribute__. Also, __extension__ will be #defined
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@ -62,24 +51,10 @@ So instead we use the macro below and test it against specific values. */
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#define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
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#endif /* GCC_VERSION */
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#if defined (__STDC__) || defined(__cplusplus) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(_WIN32)
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/* All known AIX compilers implement these things (but don't always
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define __STDC__). The RISC/OS MIPS compiler defines these things
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in SVR4 mode, but does not define __STDC__. */
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/* eraxxon@alumni.rice.edu: The Compaq C++ compiler, unlike many other
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C++ compilers, does not define __STDC__, though it acts as if this
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was so. (Verified versions: 5.7, 6.2, 6.3, 6.5) */
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#define PTR void *
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#undef const
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#undef volatile
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#undef signed
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/* inline requires special treatment; it's in C99, and GCC >=2.7 supports
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it too, but it's not in C89. */
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#undef inline
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#if __STDC_VERSION__ >= 199901L || defined(__cplusplus) || (defined(__SUNPRO_C) && defined(__C99FEATURES__))
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#if (!defined(__cplusplus) && __STDC_VERSION__ >= 199901L) || defined(__cplusplus) || (defined(__SUNPRO_C) && defined(__C99FEATURES__))
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/* it's a keyword */
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#else
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# if GCC_VERSION >= 2007
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@ -89,22 +64,6 @@ So instead we use the macro below and test it against specific values. */
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# endif
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#endif
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#else /* Not ANSI C. */
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#define PTR char *
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/* some systems define these in header files for non-ansi mode */
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#undef const
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#undef volatile
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#undef signed
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#undef inline
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#define const
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#define volatile
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#define signed
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#define inline
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#endif /* ANSI C. */
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/* Define macros for some gcc attributes. This permits us to use the
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macros freely, and know that they will come into play for the
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version of gcc in which they are supported. */
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@ -252,7 +211,7 @@ So instead we use the macro below and test it against specific values. */
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# endif /* GNUC >= 3.0 */
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#endif /* ATTRIBUTE_ALIGNED_ALIGNOF */
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/* Useful for structures whose layout must much some binary specification
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/* Useful for structures whose layout must match some binary specification
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regardless of the alignment and padding qualities of the compiler. */
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#ifndef ATTRIBUTE_PACKED
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# define ATTRIBUTE_PACKED __attribute__ ((packed))
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@ -283,6 +242,49 @@ So instead we use the macro below and test it against specific values. */
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# endif /* GNUC >= 4.9 */
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#endif /* ATTRIBUTE_NO_SANITIZE_UNDEFINED */
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/* Attribute 'nonstring' was valid as of gcc 8. */
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#ifndef ATTRIBUTE_NONSTRING
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# if GCC_VERSION >= 8000
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# define ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__))
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# else
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# define ATTRIBUTE_NONSTRING
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# endif
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#endif
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/* Attribute `alloc_size' was valid as of gcc 4.3. */
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#ifndef ATTRIBUTE_RESULT_SIZE_1
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# if (GCC_VERSION >= 4003)
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# define ATTRIBUTE_RESULT_SIZE_1 __attribute__ ((alloc_size (1)))
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# else
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# define ATTRIBUTE_RESULT_SIZE_1
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#endif
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#endif
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#ifndef ATTRIBUTE_RESULT_SIZE_2
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# if (GCC_VERSION >= 4003)
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# define ATTRIBUTE_RESULT_SIZE_2 __attribute__ ((alloc_size (2)))
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# else
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# define ATTRIBUTE_RESULT_SIZE_2
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#endif
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#endif
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#ifndef ATTRIBUTE_RESULT_SIZE_1_2
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# if (GCC_VERSION >= 4003)
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# define ATTRIBUTE_RESULT_SIZE_1_2 __attribute__ ((alloc_size (1, 2)))
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# else
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# define ATTRIBUTE_RESULT_SIZE_1_2
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#endif
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#endif
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/* Attribute `warn_unused_result' was valid as of gcc 3.3. */
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#ifndef ATTRIBUTE_WARN_UNUSED_RESULT
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# if GCC_VERSION >= 3003
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# define ATTRIBUTE_WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
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# else
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# define ATTRIBUTE_WARN_UNUSED_RESULT
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# endif
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#endif
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/* We use __extension__ in some places to suppress -pedantic warnings
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about GCC extensions. This feature didn't work properly before
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gcc 2.8. */
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@ -313,15 +315,38 @@ So instead we use the macro below and test it against specific values. */
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#define ENUM_BITFIELD(TYPE) unsigned int
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#endif
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/* This is used to mark a class or virtual function as final. */
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#if __cplusplus >= 201103L
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#define GCC_FINAL final
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#elif GCC_VERSION >= 4007
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#define GCC_FINAL __final
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#if defined(__cplusplus) && __cpp_constexpr >= 200704
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#define CONSTEXPR constexpr
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#else
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#define GCC_FINAL
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#define CONSTEXPR
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#endif
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/* A macro to disable the copy constructor and assignment operator.
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When building with C++11 and above, the methods are explicitly
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deleted, causing a compile-time error if something tries to copy.
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For C++03, this just declares the methods, causing a link-time
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error if the methods end up called (assuming you don't
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define them). For C++03, for best results, place the macro
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under the private: access specifier, like this,
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class name_lookup
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{
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private:
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DISABLE_COPY_AND_ASSIGN (name_lookup);
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};
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so that most attempts at copy are caught at compile-time. */
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#if defined(__cplusplus) && __cplusplus >= 201103
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#define DISABLE_COPY_AND_ASSIGN(TYPE) \
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TYPE (const TYPE&) = delete; \
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void operator= (const TYPE &) = delete
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#else
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#define DISABLE_COPY_AND_ASSIGN(TYPE) \
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TYPE (const TYPE&); \
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void operator= (const TYPE &)
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#endif /* __cplusplus >= 201103 */
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#ifdef __cplusplus
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}
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#endif
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