Enchant
Generic spell checking library
config.h
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/* config.h. Generated from config.h.in by configure. */
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/* config.h.in. Generated from configure.ac by autoheader. */
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/* Witness that <config.h> has been included. */
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#define _GL_CONFIG_H_INCLUDED 1
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/* Define to 1 if the package shall run at any location in the file system. */
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#define ENABLE_RELOCATABLE 1
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/* Define to a C preprocessor expression that evaluates to 1 or 0, depending
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whether the gnulib module msvc-nothrow shall be considered present. */
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#define GNULIB_MSVC_NOTHROW 1
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/* Define to 1 if you have the <aspell.h> header file. */
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#define HAVE_ASPELL_H 1
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/* Define to 1 if you have the <Cocoa/Cocoa.h> header file. */
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/* #undef HAVE_COCOA_COCOA_H */
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/* define if the compiler supports basic C++11 syntax */
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#define HAVE_CXX11 1
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/* Define to 1 if you have the <dlfcn.h> header file. */
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#define HAVE_DLFCN_H 1
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/* Define to 1 if you have the `fcntl' function. */
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#define HAVE_FCNTL 1
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/* Define to 1 if you have the `flock' function. */
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#define HAVE_FLOCK 1
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/* Define to 1 if you have the <hspell.h> header file. */
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#define HAVE_HSPELL_H 1
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/* Define to 1 if you have the <inttypes.h> header file. */
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#define HAVE_INTTYPES_H 1
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/* Define to 1 if you have the `applespell' library (-lapplespell). */
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/* #undef HAVE_LIBAPPLESPELL */
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/* Define to 1 if you have the `aspell' library (-laspell). */
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#define HAVE_LIBASPELL 1
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/* Define to 1 if you have the `hspell' library (-lhspell). */
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#define HAVE_LIBHSPELL 1
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/* Define to 1 on MSVC platforms that have the "invalid parameter handler"
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concept. */
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/* #undef HAVE_MSVC_INVALID_PARAMETER_HANDLER */
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/* Define to 1 if you have the <stdint.h> header file. */
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#define HAVE_STDINT_H 1
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/* Define to 1 if you have the <stdio.h> header file. */
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#define HAVE_STDIO_H 1
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/* Define to 1 if you have the <stdlib.h> header file. */
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#define HAVE_STDLIB_H 1
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/* Define to 1 if you have the <strings.h> header file. */
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#define HAVE_STRINGS_H 1
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/* Define to 1 if you have the <string.h> header file. */
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#define HAVE_STRING_H 1
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/* Define to 1 if `l_type' is a member of `struct flock'. */
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/* #undef HAVE_STRUCT_FLOCK_L_TYPE */
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/* Define to 1 if you have the <sys/file.h> header file. */
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#define HAVE_SYS_FILE_H 1
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/* Define to 1 if you have the <sys/stat.h> header file. */
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#define HAVE_SYS_STAT_H 1
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/* Define to 1 if you have the <sys/types.h> header file. */
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#define HAVE_SYS_TYPES_H 1
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/* Define to 1 if you have the <unistd.h> header file. */
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#define HAVE_UNISTD_H 1
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/* Define to 1 if you have the `_set_invalid_parameter_handler' function. */
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/* #undef HAVE__SET_INVALID_PARAMETER_HANDLER */
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/* Define to the value of ${prefix}, as a string. */
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#define INSTALLPREFIX "/home/rrt/.local"
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/* Define to the extension used for runtime loadable modules, say, ".so". */
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#define LT_MODULE_EXT ".so"
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/* Define to the sub-directory where libtool stores uninstalled libraries. */
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#define LT_OBJDIR ".libs/"
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/* Define to the shared library suffix, say, ".dylib". */
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/* #undef LT_SHARED_EXT */
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/* Define to the shared archive member specification, say "(shr.o)". */
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/* #undef LT_SHARED_LIB_MEMBER */
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/* Name of package */
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#define PACKAGE "enchant"
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/* Define to the address where bug reports for this package should be sent. */
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#define PACKAGE_BUGREPORT ""
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/* Define to the full name of this package. */
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#define PACKAGE_NAME "enchant"
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/* Define to the full name and version of this package. */
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#define PACKAGE_STRING "enchant 2.7.3"
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/* Define to the one symbol short name of this package. */
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#define PACKAGE_TARNAME "enchant"
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/* Define to the home page for this package. */
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#define PACKAGE_URL ""
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/* Define to the version of this package. */
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#define PACKAGE_VERSION "2.7.3"
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/* Define to 1 if all of the C90 standard headers exist (not just the ones
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required in a freestanding environment). This macro is provided for
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backward compatibility; new code need not use it. */
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#define STDC_HEADERS 1
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/* Version number of package */
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#define VERSION "2.7.3"
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/* True if the compiler says it groks GNU C version MAJOR.MINOR. */
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#if defined __GNUC__ && defined __GNUC_MINOR__
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# define _GL_GNUC_PREREQ(major, minor) \
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((major) < __GNUC__ + ((minor) <= __GNUC_MINOR__))
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#else
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# define _GL_GNUC_PREREQ(major, minor) 0
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#endif
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/* The _Noreturn keyword of C11. */
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#ifndef _Noreturn
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# if (defined __cplusplus \
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&& ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \
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|| (defined _MSC_VER && 1900 <= _MSC_VER)) \
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&& 0)
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/* [[noreturn]] is not practically usable, because with it the syntax
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extern _Noreturn void func (...);
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would not be valid; such a declaration would only be valid with 'extern'
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and '_Noreturn' swapped, or without the 'extern' keyword. However, some
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AIX system header files and several gnulib header files use precisely
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this syntax with 'extern'. */
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# define _Noreturn [[noreturn]]
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# elif (defined __clang__ && __clang_major__ < 16 \
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&& defined _GL_WORK_AROUND_LLVM_BUG_59792)
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/* Compile with -D_GL_WORK_AROUND_LLVM_BUG_59792 to work around
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that rare LLVM bug, though you may get many false-alarm warnings. */
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# define _Noreturn
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# elif ((!defined __cplusplus || defined __clang__) \
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&& (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \
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|| (!defined __STRICT_ANSI__ \
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&& (_GL_GNUC_PREREQ (4, 7) \
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|| (defined __apple_build_version__ \
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? 6000000 <= __apple_build_version__ \
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: 3 < __clang_major__ + (5 <= __clang_minor__))))))
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/* _Noreturn works as-is. */
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# elif _GL_GNUC_PREREQ (2, 8) || defined __clang__ || 0x5110 <= __SUNPRO_C
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# define _Noreturn __attribute__ ((__noreturn__))
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# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0)
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# define _Noreturn __declspec (noreturn)
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# else
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# define _Noreturn
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# endif
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#endif
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/* The _GL_ASYNC_SAFE marker should be attached to functions that are
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signal handlers (for signals other than SIGABRT, SIGPIPE) or can be
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invoked from such signal handlers. Such functions have some restrictions:
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* All functions that it calls should be marked _GL_ASYNC_SAFE as well,
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or should be listed as async-signal-safe in POSIX
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<https://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html#tag_15_04>
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section 2.4.3. Note that malloc(), sprintf(), and fwrite(), in
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particular, are NOT async-signal-safe.
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* All memory locations (variables and struct fields) that these functions
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access must be marked 'volatile'. This holds for both read and write
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accesses. Otherwise the compiler might optimize away stores to and
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reads from such locations that occur in the program, depending on its
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data flow analysis. For example, when the program contains a loop
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that is intended to inspect a variable set from within a signal handler
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while (!signal_occurred)
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;
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the compiler is allowed to transform this into an endless loop if the
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variable 'signal_occurred' is not declared 'volatile'.
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Additionally, recall that:
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* A signal handler should not modify errno (except if it is a handler
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for a fatal signal and ends by raising the same signal again, thus
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provoking the termination of the process). If it invokes a function
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that may clobber errno, it needs to save and restore the value of
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errno. */
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#define _GL_ASYNC_SAFE
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/* Attributes. */
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/* Define _GL_HAS_ATTRIBUTE only once, because on FreeBSD, with gcc < 5, if
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<config.h> gets included once again after <sys/cdefs.h>, __has_attribute(x)
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expands to 0 always, and redefining _GL_HAS_ATTRIBUTE would turn off all
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attributes. */
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#ifndef _GL_HAS_ATTRIBUTE
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# if (defined __has_attribute \
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&& (!defined __clang_minor__ \
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|| (defined __apple_build_version__ \
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? 7000000 <= __apple_build_version__ \
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: 5 <= __clang_major__)))
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# define _GL_HAS_ATTRIBUTE(attr) __has_attribute (__##attr##__)
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# else
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# define _GL_HAS_ATTRIBUTE(attr) _GL_ATTR_##attr
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# define _GL_ATTR_alloc_size _GL_GNUC_PREREQ (4, 3)
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# define _GL_ATTR_always_inline _GL_GNUC_PREREQ (3, 2)
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# define _GL_ATTR_artificial _GL_GNUC_PREREQ (4, 3)
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# define _GL_ATTR_cold _GL_GNUC_PREREQ (4, 3)
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# define _GL_ATTR_const _GL_GNUC_PREREQ (2, 95)
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# define _GL_ATTR_deprecated _GL_GNUC_PREREQ (3, 1)
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# define _GL_ATTR_diagnose_if 0
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# define _GL_ATTR_error _GL_GNUC_PREREQ (4, 3)
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# define _GL_ATTR_externally_visible _GL_GNUC_PREREQ (4, 1)
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# define _GL_ATTR_fallthrough _GL_GNUC_PREREQ (7, 0)
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# define _GL_ATTR_format _GL_GNUC_PREREQ (2, 7)
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# define _GL_ATTR_leaf _GL_GNUC_PREREQ (4, 6)
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# define _GL_ATTR_malloc _GL_GNUC_PREREQ (3, 0)
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# ifdef _ICC
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# define _GL_ATTR_may_alias 0
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# else
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# define _GL_ATTR_may_alias _GL_GNUC_PREREQ (3, 3)
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# endif
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# define _GL_ATTR_noinline _GL_GNUC_PREREQ (3, 1)
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# define _GL_ATTR_nonnull _GL_GNUC_PREREQ (3, 3)
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# define _GL_ATTR_nonstring _GL_GNUC_PREREQ (8, 0)
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# define _GL_ATTR_nothrow _GL_GNUC_PREREQ (3, 3)
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# define _GL_ATTR_packed _GL_GNUC_PREREQ (2, 7)
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# define _GL_ATTR_pure _GL_GNUC_PREREQ (2, 96)
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# define _GL_ATTR_returns_nonnull _GL_GNUC_PREREQ (4, 9)
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# define _GL_ATTR_sentinel _GL_GNUC_PREREQ (4, 0)
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# define _GL_ATTR_unused _GL_GNUC_PREREQ (2, 7)
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# define _GL_ATTR_warn_unused_result _GL_GNUC_PREREQ (3, 4)
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# endif
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#endif
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/* Use __has_c_attribute if available. However, do not use with
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pre-C23 GCC, which can issue false positives if -Wpedantic. */
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#if (defined __has_c_attribute \
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&& ! (_GL_GNUC_PREREQ (4, 6) \
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&& (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) <= 201710))
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# define _GL_HAVE___HAS_C_ATTRIBUTE 1
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#else
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# define _GL_HAVE___HAS_C_ATTRIBUTE 0
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#endif
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/* Define if, in a function declaration, the attributes in bracket syntax
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[[...]] must come before the attributes in __attribute__((...)) syntax.
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If this is defined, it is best to avoid the bracket syntax, so that the
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various _GL_ATTRIBUTE_* can be cumulated on the same declaration in any
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order. */
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#ifdef __cplusplus
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# if defined __clang__
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# define _GL_BRACKET_BEFORE_ATTRIBUTE 1
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# endif
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#else
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# if defined __GNUC__ && !defined __clang__
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# define _GL_BRACKET_BEFORE_ATTRIBUTE 1
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# endif
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#endif
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/* _GL_ATTRIBUTE_ALLOC_SIZE ((N)) declares that the Nth argument of the function
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is the size of the returned memory block.
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_GL_ATTRIBUTE_ALLOC_SIZE ((M, N)) declares that the Mth argument multiplied
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by the Nth argument of the function is the size of the returned memory block.
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*/
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/* Applies to: function, pointer to function, function types. */
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#ifndef _GL_ATTRIBUTE_ALLOC_SIZE
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# if _GL_HAS_ATTRIBUTE (alloc_size)
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# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
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# else
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# define _GL_ATTRIBUTE_ALLOC_SIZE(args)
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# endif
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#endif
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/* _GL_ATTRIBUTE_ALWAYS_INLINE tells that the compiler should always inline the
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function and report an error if it cannot do so. */
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/* Applies to: function. */
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#ifndef _GL_ATTRIBUTE_ALWAYS_INLINE
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# if _GL_HAS_ATTRIBUTE (always_inline)
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# define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__))
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# else
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# define _GL_ATTRIBUTE_ALWAYS_INLINE
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# endif
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#endif
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/* _GL_ATTRIBUTE_ARTIFICIAL declares that the function is not important to show
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in stack traces when debugging. The compiler should omit the function from
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stack traces. */
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/* Applies to: function. */
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#ifndef _GL_ATTRIBUTE_ARTIFICIAL
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# if _GL_HAS_ATTRIBUTE (artificial)
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# define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__))
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# else
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# define _GL_ATTRIBUTE_ARTIFICIAL
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# endif
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#endif
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/* _GL_ATTRIBUTE_COLD declares that the function is rarely executed. */
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/* Applies to: functions. */
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/* Avoid __attribute__ ((cold)) on MinGW; see thread starting at
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<https://lists.gnu.org/r/emacs-devel/2019-04/msg01152.html>.
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Also, Oracle Studio 12.6 requires 'cold' not '__cold__'. */
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#ifndef _GL_ATTRIBUTE_COLD
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# if _GL_HAS_ATTRIBUTE (cold) && !defined __MINGW32__
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# ifndef __SUNPRO_C
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# define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__))
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# else
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# define _GL_ATTRIBUTE_COLD __attribute__ ((cold))
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# endif
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# else
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# define _GL_ATTRIBUTE_COLD
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# endif
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#endif
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/* _GL_ATTRIBUTE_CONST declares that it is OK for a compiler to omit duplicate
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calls to the function with the same arguments.
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This attribute is safe for a function that neither depends on nor affects
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observable state, and always returns exactly once - e.g., does not loop
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forever, and does not call longjmp.
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(This attribute is stricter than _GL_ATTRIBUTE_PURE.) */
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/* Applies to: functions. */
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#ifndef _GL_ATTRIBUTE_CONST
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# if _GL_HAS_ATTRIBUTE (const)
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# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
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# else
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# define _GL_ATTRIBUTE_CONST
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# endif
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#endif
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/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
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that can be freed by passing them as the Ith argument to the
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function F.
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_GL_ATTRIBUTE_DEALLOC_FREE declares that the function returns pointers that
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can be freed via 'free'; it can be used only after declaring 'free'. */
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/* Applies to: functions. Cannot be used on inline functions. */
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#ifndef _GL_ATTRIBUTE_DEALLOC
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# if _GL_GNUC_PREREQ (11, 0)
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# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
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# else
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# define _GL_ATTRIBUTE_DEALLOC(f, i)
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# endif
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#endif
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/* If gnulib's <string.h> or <wchar.h> has already defined this macro, continue
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to use this earlier definition, since <stdlib.h> may not have been included
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yet. */
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#ifndef _GL_ATTRIBUTE_DEALLOC_FREE
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# if defined __cplusplus && defined __GNUC__ && !defined __clang__
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/* Work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108231> */
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# define _GL_ATTRIBUTE_DEALLOC_FREE \
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_GL_ATTRIBUTE_DEALLOC ((void (*) (void *)) free, 1)
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# else
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# define _GL_ATTRIBUTE_DEALLOC_FREE \
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_GL_ATTRIBUTE_DEALLOC (free, 1)
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# endif
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#endif
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/* _GL_ATTRIBUTE_DEPRECATED: Declares that an entity is deprecated.
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The compiler may warn if the entity is used. */
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/* Applies to:
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- function, variable,
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- struct, union, struct/union member,
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- enumeration, enumeration item,
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- typedef,
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in C++ also: namespace, class, template specialization. */
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#ifndef _GL_ATTRIBUTE_DEPRECATED
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# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE
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# if _GL_HAVE___HAS_C_ATTRIBUTE
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# if __has_c_attribute (__deprecated__)
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# define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]]
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# endif
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# endif
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# endif
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# if !defined _GL_ATTRIBUTE_DEPRECATED && _GL_HAS_ATTRIBUTE (deprecated)
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# define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
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# endif
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# ifndef _GL_ATTRIBUTE_DEPRECATED
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# define _GL_ATTRIBUTE_DEPRECATED
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# endif
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#endif
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/* _GL_ATTRIBUTE_ERROR(msg) requests an error if a function is called and
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the function call is not optimized away.
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_GL_ATTRIBUTE_WARNING(msg) requests a warning if a function is called and
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the function call is not optimized away. */
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/* Applies to: functions. */
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#if !(defined _GL_ATTRIBUTE_ERROR && defined _GL_ATTRIBUTE_WARNING)
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# if _GL_HAS_ATTRIBUTE (error)
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# define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__error__ (msg)))
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# define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__warning__ (msg)))
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# elif _GL_HAS_ATTRIBUTE (diagnose_if)
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# define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__diagnose_if__ (1, msg, "error"
)))
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# define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__diagnose_if__ (1, msg, "warning"
)))
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# else
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# define _GL_ATTRIBUTE_ERROR(msg)
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# define _GL_ATTRIBUTE_WARNING(msg)
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# endif
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#endif
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/* _GL_ATTRIBUTE_EXTERNALLY_VISIBLE declares that the entity should remain
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visible to debuggers etc., even with '-fwhole-program'. */
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/* Applies to: functions, variables. */
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#ifndef _GL_ATTRIBUTE_EXTERNALLY_VISIBLE
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# if _GL_HAS_ATTRIBUTE (externally_visible)
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# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((externally_visible))
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# else
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# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE
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# endif
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#endif
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/* _GL_ATTRIBUTE_FALLTHROUGH declares that it is not a programming mistake if
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the control flow falls through to the immediately following 'case' or
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'default' label. The compiler should not warn in this case. */
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/* Applies to: Empty statement (;), inside a 'switch' statement. */
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/* Always expands to something. */
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#ifndef _GL_ATTRIBUTE_FALLTHROUGH
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# if _GL_HAVE___HAS_C_ATTRIBUTE
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# if __has_c_attribute (__fallthrough__)
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# define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]]
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# endif
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# endif
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# if !defined _GL_ATTRIBUTE_FALLTHROUGH && _GL_HAS_ATTRIBUTE (fallthrough)
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# define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__))
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# endif
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# ifndef _GL_ATTRIBUTE_FALLTHROUGH
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# define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0)
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# endif
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#endif
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/* _GL_ATTRIBUTE_FORMAT ((ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK))
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declares that the STRING-INDEXth function argument is a format string of
441
style ARCHETYPE, which is one of:
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printf, gnu_printf
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scanf, gnu_scanf,
444
strftime, gnu_strftime,
445
strfmon,
446
or the same thing prefixed and suffixed with '__'.
447
If FIRST-TO-CHECK is not 0, arguments starting at FIRST-TO_CHECK
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are suitable for the format string. */
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/* Applies to: functions. */
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#ifndef _GL_ATTRIBUTE_FORMAT
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# if _GL_HAS_ATTRIBUTE (format)
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# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
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# else
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# define _GL_ATTRIBUTE_FORMAT(spec)
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# endif
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#endif
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/* _GL_ATTRIBUTE_LEAF declares that if the function is called from some other
459
compilation unit, it executes code from that unit only by return or by
460
exception handling. This declaration lets the compiler optimize that unit
461
more aggressively. */
462
/* Applies to: functions. */
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#ifndef _GL_ATTRIBUTE_LEAF
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# if _GL_HAS_ATTRIBUTE (leaf)
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# define _GL_ATTRIBUTE_LEAF __attribute__ ((__leaf__))
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# else
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# define _GL_ATTRIBUTE_LEAF
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# endif
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#endif
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/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
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allocated memory. */
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/* Applies to: functions. */
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#ifndef _GL_ATTRIBUTE_MALLOC
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# if _GL_HAS_ATTRIBUTE (malloc)
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# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
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# else
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# define _GL_ATTRIBUTE_MALLOC
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# endif
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#endif
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/* _GL_ATTRIBUTE_MAY_ALIAS declares that pointers to the type may point to the
483
same storage as pointers to other types. Thus this declaration disables
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strict aliasing optimization. */
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/* Applies to: types. */
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/* Oracle Studio 12.6 mishandles may_alias despite __has_attribute OK. */
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#ifndef _GL_ATTRIBUTE_MAY_ALIAS
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# if _GL_HAS_ATTRIBUTE (may_alias) && !defined __SUNPRO_C
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# define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__))
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# else
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# define _GL_ATTRIBUTE_MAY_ALIAS
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# endif
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#endif
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/* _GL_ATTRIBUTE_MAYBE_UNUSED declares that it is not a programming mistake if
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the entity is not used. The compiler should not warn if the entity is not
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used. */
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/* Applies to:
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- function, variable,
500
- struct, union, struct/union member,
501
- enumeration, enumeration item,
502
- typedef,
503
in C++ also: class. */
504
/* In C++ and C23, this is spelled [[__maybe_unused__]].
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GCC's syntax is __attribute__ ((__unused__)).
506
clang supports both syntaxes. Except that with clang ≥ 6, < 10, in C++ mode,
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__has_c_attribute (__maybe_unused__) yields true but the use of
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[[__maybe_unused__]] nevertheless produces a warning. */
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#ifndef _GL_ATTRIBUTE_MAYBE_UNUSED
510
# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE
511
# if defined __clang__ && defined __cplusplus
512
# if !defined __apple_build_version__ && __clang_major__ >= 10
513
# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
514
# endif
515
# elif _GL_HAVE___HAS_C_ATTRIBUTE
516
# if __has_c_attribute (__maybe_unused__)
517
# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
518
# endif
519
# endif
520
# endif
521
# ifndef _GL_ATTRIBUTE_MAYBE_UNUSED
522
# define _GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_UNUSED
523
# endif
524
#endif
525
/* Alternative spelling of this macro, for convenience and for
526
compatibility with glibc/include/libc-symbols.h. */
527
#define _GL_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED
528
/* Earlier spellings of this macro. */
529
#define _UNUSED_PARAMETER_ _GL_ATTRIBUTE_MAYBE_UNUSED
530
531
/* _GL_ATTRIBUTE_NODISCARD declares that the caller of the function should not
532
discard the return value. The compiler may warn if the caller does not use
533
the return value, unless the caller uses something like ignore_value. */
534
/* Applies to: function, enumeration, class. */
535
#ifndef _GL_ATTRIBUTE_NODISCARD
536
# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE
537
# if defined __clang__ && defined __cplusplus
538
/* With clang up to 15.0.6 (at least), in C++ mode, [[__nodiscard__]] produces
539
a warning.
540
The 1000 below means a yet unknown threshold. When clang++ version X
541
starts supporting [[__nodiscard__]] without warning about it, you can
542
replace the 1000 with X. */
543
# if __clang_major__ >= 1000
544
# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]]
545
# endif
546
# elif _GL_HAVE___HAS_C_ATTRIBUTE
547
# if __has_c_attribute (__nodiscard__)
548
# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]]
549
# endif
550
# endif
551
# endif
552
# if !defined _GL_ATTRIBUTE_NODISCARD && _GL_HAS_ATTRIBUTE (warn_unused_result)
553
# define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__))
554
# endif
555
# ifndef _GL_ATTRIBUTE_NODISCARD
556
# define _GL_ATTRIBUTE_NODISCARD
557
# endif
558
#endif
559
560
/* _GL_ATTRIBUTE_NOINLINE tells that the compiler should not inline the
561
function. */
562
/* Applies to: functions. */
563
#ifndef _GL_ATTRIBUTE_NOINLINE
564
# if _GL_HAS_ATTRIBUTE (noinline)
565
# define _GL_ATTRIBUTE_NOINLINE __attribute__ ((__noinline__))
566
# else
567
# define _GL_ATTRIBUTE_NOINLINE
568
# endif
569
#endif
570
571
/* _GL_ATTRIBUTE_NONNULL ((N1, N2,...)) declares that the arguments N1, N2,...
572
must not be NULL.
573
_GL_ATTRIBUTE_NONNULL () declares that all pointer arguments must not be
574
null. */
575
/* Applies to: functions. */
576
#ifndef _GL_ATTRIBUTE_NONNULL
577
# if _GL_HAS_ATTRIBUTE (nonnull)
578
# define _GL_ATTRIBUTE_NONNULL(args) __attribute__ ((__nonnull__ args))
579
# else
580
# define _GL_ATTRIBUTE_NONNULL(args)
581
# endif
582
#endif
583
584
/* _GL_ATTRIBUTE_NONSTRING declares that the contents of a character array is
585
not meant to be NUL-terminated. */
586
/* Applies to: struct/union members and variables that are arrays of element
587
type '[[un]signed] char'. */
588
#ifndef _GL_ATTRIBUTE_NONSTRING
589
# if _GL_HAS_ATTRIBUTE (nonstring)
590
# define _GL_ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__))
591
# else
592
# define _GL_ATTRIBUTE_NONSTRING
593
# endif
594
#endif
595
596
/* There is no _GL_ATTRIBUTE_NORETURN; use _Noreturn instead. */
597
598
/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions.
599
*/
600
/* Applies to: functions. */
601
/* After a function's parameter list, this attribute must come first, before
602
other attributes. */
603
#ifndef _GL_ATTRIBUTE_NOTHROW
604
# if defined __cplusplus
605
# if _GL_GNUC_PREREQ (2, 8) || __clang_major >= 4
606
# if __cplusplus >= 201103L
607
# define _GL_ATTRIBUTE_NOTHROW noexcept (true)
608
# else
609
# define _GL_ATTRIBUTE_NOTHROW throw ()
610
# endif
611
# else
612
# define _GL_ATTRIBUTE_NOTHROW
613
# endif
614
# else
615
# if _GL_HAS_ATTRIBUTE (nothrow)
616
# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__))
617
# else
618
# define _GL_ATTRIBUTE_NOTHROW
619
# endif
620
# endif
621
#endif
622
623
/* _GL_ATTRIBUTE_PACKED declares:
624
For struct members: The member has the smallest possible alignment.
625
For struct, union, class: All members have the smallest possible alignment,
626
minimizing the memory required. */
627
/* Applies to: struct members, struct, union,
628
in C++ also: class. */
629
/* Oracle Studio 12.6 miscompiles code with __attribute__ ((__packed__)) despite
630
__has_attribute OK. */
631
#ifndef _GL_ATTRIBUTE_PACKED
632
# if _GL_HAS_ATTRIBUTE (packed) && !defined __SUNPRO_C
633
# define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__))
634
# else
635
# define _GL_ATTRIBUTE_PACKED
636
# endif
637
#endif
638
639
/* _GL_ATTRIBUTE_PURE declares that It is OK for a compiler to omit duplicate
640
calls to the function with the same arguments if observable state is not
641
changed between calls.
642
This attribute is safe for a function that does not affect
643
observable state, and always returns exactly once.
644
(This attribute is looser than _GL_ATTRIBUTE_CONST.) */
645
/* Applies to: functions. */
646
#ifndef _GL_ATTRIBUTE_PURE
647
# if _GL_HAS_ATTRIBUTE (pure)
648
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
649
# else
650
# define _GL_ATTRIBUTE_PURE
651
# endif
652
#endif
653
654
/* _GL_ATTRIBUTE_RETURNS_NONNULL declares that the function's return value is
655
a non-NULL pointer. */
656
/* Applies to: functions. */
657
#ifndef _GL_ATTRIBUTE_RETURNS_NONNULL
658
# if _GL_HAS_ATTRIBUTE (returns_nonnull)
659
# define _GL_ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__))
660
# else
661
# define _GL_ATTRIBUTE_RETURNS_NONNULL
662
# endif
663
#endif
664
665
/* _GL_ATTRIBUTE_SENTINEL(pos) declares that the variadic function expects a
666
trailing NULL argument.
667
_GL_ATTRIBUTE_SENTINEL () - The last argument is NULL (requires C99).
668
_GL_ATTRIBUTE_SENTINEL ((N)) - The (N+1)st argument from the end is NULL. */
669
/* Applies to: functions. */
670
#ifndef _GL_ATTRIBUTE_SENTINEL
671
# if _GL_HAS_ATTRIBUTE (sentinel)
672
# define _GL_ATTRIBUTE_SENTINEL(pos) __attribute__ ((__sentinel__ pos))
673
# else
674
# define _GL_ATTRIBUTE_SENTINEL(pos)
675
# endif
676
#endif
677
678
/* A helper macro. Don't use it directly. */
679
#ifndef _GL_ATTRIBUTE_UNUSED
680
# if _GL_HAS_ATTRIBUTE (unused)
681
# define _GL_ATTRIBUTE_UNUSED __attribute__ ((__unused__))
682
# else
683
# define _GL_ATTRIBUTE_UNUSED
684
# endif
685
#endif
686
687
688
/* _GL_UNUSED_LABEL; declares that it is not a programming mistake if the
689
immediately preceding label is not used. The compiler should not warn
690
if the label is not used. */
691
/* Applies to: label (both in C and C++). */
692
/* Note that g++ < 4.5 does not support the '__attribute__ ((__unused__)) ;'
693
syntax. But clang does. */
694
#ifndef _GL_UNUSED_LABEL
695
# if !(defined __cplusplus && !_GL_GNUC_PREREQ (4, 5)) || defined __clang__
696
# define _GL_UNUSED_LABEL _GL_ATTRIBUTE_UNUSED
697
# else
698
# define _GL_UNUSED_LABEL
699
# endif
700
#endif
701
702
703
/* In C++, there is the concept of "language linkage", that encompasses
704
name mangling and function calling conventions.
705
The following macros start and end a block of "C" linkage. */
706
#ifdef __cplusplus
707
# define _GL_BEGIN_C_LINKAGE extern "C"
{
708
# define _GL_END_C_LINKAGE }
709
#else
710
# define _GL_BEGIN_C_LINKAGE
711
# define _GL_END_C_LINKAGE
712
#endif
713
714
715
/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
716
the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
717
earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
718
__APPLE__ && __MACH__ test for Mac OS X.
719
__APPLE_CC__ tests for the Apple compiler and its version.
720
__STDC_VERSION__ tests for the C99 mode. */
721
#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
722
# define __GNUC_STDC_INLINE__ 1
723
#endif
724
725
/* _GL_CMP (n1, n2) performs a three-valued comparison on n1 vs. n2, where
726
n1 and n2 are expressions without side effects, that evaluate to real
727
numbers (excluding NaN).
728
It returns
729
1 if n1 > n2
730
0 if n1 == n2
731
-1 if n1 < n2
732
The naïve code (n1 > n2 ? 1 : n1 < n2 ? -1 : 0) produces a conditional
733
jump with nearly all GCC versions up to GCC 10.
734
This variant (n1 < n2 ? -1 : n1 > n2) produces a conditional with many
735
GCC versions up to GCC 9.
736
The better code (n1 > n2) - (n1 < n2) from Hacker's Delight § 2-9
737
avoids conditional jumps in all GCC versions >= 3.4. */
738
#define _GL_CMP(n1, n2) (((n1) > (n2)) - ((n1) < (n2)))
739
config.h
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