ObjFW  Check-in [bac91ccede]

Overview
Comment:Add C11 noreturn

If it's unavailable, it's defined to __attribute__((noreturn)).

Unfortunately, it cannot be used for ObjC methods, as noreturn is part
of the return type while __attribute__((noreturn)) needs to be at the
end for an ObjC method. To make matters worse, even GCC versions that
accept noreturn don't allow it for an ObjC method. Thus, the only thing
that can be done is to always use __attribute__((noreturn)) for ObjC
methods using the OF_METHOD_NORETURN define.

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SHA3-256: bac91ccede95f3f052337b11c967483136eb3c08d103555c19bcc40e8b093cf4
User & Date: js on 2014-05-14 20:45:00
Other Links: manifest | tags
Context
2014-05-14
21:09
Replace @compatibility_alias with #define for NS* check-in: ac1ae59c91 user: js tags: trunk
20:45
Add C11 noreturn check-in: bac91ccede user: js tags: trunk
20:28
Always use __foo__ instead of foo for attributes check-in: e35b10115e user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified configure.ac from [6c6bb6568f] to [5c05e2c9e7].

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	])
	AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])
])

AC_CHECK_TYPE(max_align_t,
	[AC_DEFINE(OF_HAVE_MAX_ALIGN_T, 1, [Whether we have max_align_t])])




AC_CHECK_SIZEOF(float)
AC_CHECK_SIZEOF(double)
AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"],
	[AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_MSG_CHECKING(for floating point endianess)








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	])
	AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])
])

AC_CHECK_TYPE(max_align_t,
	[AC_DEFINE(OF_HAVE_MAX_ALIGN_T, 1, [Whether we have max_align_t])])

AC_CHECK_HEADER(stdnoreturn.h,
	[AC_DEFINE(OF_HAVE_STDNORETURN_H, 1, [Whether we have stdnoreturn.h])])

AC_CHECK_SIZEOF(float)
AC_CHECK_SIZEOF(double)
AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"],
	[AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_MSG_CHECKING(for floating point endianess)
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Modified src/OFApplication.h from [f01ba7a135] to [4b9b47fc09].

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 * @return The environment of the application
 */
+ (OFDictionary*)environment;

/*!
 * @brief Terminates the application.
 */
+ (void)terminate OF_NO_RETURN;

/*!
 * @brief Terminates the application with the specified status.
 *
 * @param status The status with which the application will terminate
 */
+ (void)terminateWithStatus: (int)status OF_NO_RETURN;

/*!
 * @brief Gets args and argv.
 *
 * @param argc A pointer where a pointer to argc should be stored
 * @param argv A pointer where a pointer to argv should be stored
 */








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 * @return The environment of the application
 */
+ (OFDictionary*)environment;

/*!
 * @brief Terminates the application.
 */
+ (void)terminate OF_METHOD_NORETURN;

/*!
 * @brief Terminates the application with the specified status.
 *
 * @param status The status with which the application will terminate
 */
+ (void)terminateWithStatus: (int)status OF_METHOD_NORETURN;

/*!
 * @brief Gets args and argv.
 *
 * @param argc A pointer where a pointer to argc should be stored
 * @param argv A pointer where a pointer to argv should be stored
 */
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 * @param delegate The delegate for the application
 */
- (void)setDelegate: (id <OFApplicationDelegate>)delegate;

/*!
 * @brief Terminates the application.
 */
- (void)terminate;

/*!
 * @brief Terminates the application with the specified status.
 *
 * @param status The status with which the application will terminate
 */
- (void)terminateWithStatus: (int)status;
@end

@interface OFObject (OFApplicationDelegate) <OFApplicationDelegate>
@end

#ifdef __cplusplus
extern "C" {
#endif
extern int of_application_main(int*, char**[], Class);
#ifdef __cplusplus
}
#endif








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 * @param delegate The delegate for the application
 */
- (void)setDelegate: (id <OFApplicationDelegate>)delegate;

/*!
 * @brief Terminates the application.
 */
- (void)terminate OF_METHOD_NORETURN;

/*!
 * @brief Terminates the application with the specified status.
 *
 * @param status The status with which the application will terminate
 */
- (void)terminateWithStatus: (int)status OF_METHOD_NORETURN;
@end

@interface OFObject (OFApplicationDelegate) <OFApplicationDelegate>
@end

#ifdef __cplusplus
extern "C" {
#endif
extern int of_application_main(int*, char**[], Class);
#ifdef __cplusplus
}
#endif

Modified src/OFObject.h from [3f124a3246] to [baff938aeb].

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/*! @file */

#if defined(__GNUC__)
# define restrict __restrict__
#elif __STDC_VERSION__ < 199901L
# define restrict
#endif













#if defined(OF_HAVE__THREAD_LOCAL)
# define OF_HAVE_COMPILER_TLS
# ifdef OF_HAVE_THREADS_H
#  include <threads.h>
# else
#  define thread_local _Thread_local








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/*! @file */

#if defined(__GNUC__)
# define restrict __restrict__
#elif __STDC_VERSION__ < 199901L
# define restrict
#endif

#if __STDC_VERSION__ >= 201112L
# ifdef OF_HAVE_STDNORETURN_H
#  include <stdnoreturn.h>
# else
#  define noreturn _Noreturn
# endif
#elif defined(__GNUC__)
# define noreturn __attribute__((noreturn))
#else
# define noreturn
#endif

#if defined(OF_HAVE__THREAD_LOCAL)
# define OF_HAVE_COMPILER_TLS
# ifdef OF_HAVE_THREADS_H
#  include <threads.h>
# else
#  define thread_local _Thread_local
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#  undef false
#  define false ((bool)0)
# endif
#endif

#if defined(__clang__) || __GCC_VERSION__ >= 406
# define OF_SENTINEL __attribute__((__sentinel__))
# define OF_NO_RETURN __attribute__((__noreturn__))
#else
# define OF_SENTINEL
# define OF_NO_RETURN
#endif

#if __has_attribute(__objc_requires_super__)
# define OF_REQUIRES_SUPER __attribute__((__objc_requires_super__))
#else
# define OF_REQUIRES_SUPER
#endif








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#  undef false
#  define false ((bool)0)
# endif
#endif

#if defined(__clang__) || __GCC_VERSION__ >= 406
# define OF_SENTINEL __attribute__((__sentinel__))
# define OF_METHOD_NORETURN __attribute__((__noreturn__))
#else
# define OF_SENTINEL
# define OF_METHOD_NORETURN
#endif

#if __has_attribute(__objc_requires_super__)
# define OF_REQUIRES_SUPER __attribute__((__objc_requires_super__))
#else
# define OF_REQUIRES_SUPER
#endif
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 * @brief Handles messages which are not understood by the receiver.
 *
 * @warning If you override this method, you must make sure that it never
 *	    returns.
 *
 * @param selector The selector not understood by the receiver
 */
- (void)doesNotRecognizeSelector: (SEL)selector OF_NO_RETURN;
@end

/*!
 * @protocol OFCopying OFObject.h ObjFW/OFObject.h
 *
 * @brief A protocol for the creation of copies.
 */








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 * @brief Handles messages which are not understood by the receiver.
 *
 * @warning If you override this method, you must make sure that it never
 *	    returns.
 *
 * @param selector The selector not understood by the receiver
 */
- (void)doesNotRecognizeSelector: (SEL)selector OF_METHOD_NORETURN;
@end

/*!
 * @protocol OFCopying OFObject.h ObjFW/OFObject.h
 *
 * @brief A protocol for the creation of copies.
 */
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Modified src/OFThread.h from [bd27888ffe] to [4ccbd9a433].

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 */
+ (void)yield;

#ifdef OF_HAVE_THREADS
/*!
 * @brief Terminates the current thread, letting it return nil.
 */
+ (void)terminate OF_NO_RETURN;

/*!
 * @brief Terminates the current thread, letting it return the specified object.
 *
 * @param object The object which the terminated thread will return
 */
+ (void)terminateWithObject: (id)object OF_NO_RETURN;

# ifdef OF_HAVE_BLOCKS
/*!
 * @brief Initializes an already allocated thread with the specified block.
 *
 * @param threadBlock A block which is executed by the thread
 * @return An initialized OFThread.








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 */
+ (void)yield;

#ifdef OF_HAVE_THREADS
/*!
 * @brief Terminates the current thread, letting it return nil.
 */
+ (void)terminate OF_METHOD_NORETURN;

/*!
 * @brief Terminates the current thread, letting it return the specified object.
 *
 * @param object The object which the terminated thread will return
 */
+ (void)terminateWithObject: (id)object OF_METHOD_NORETURN;

# ifdef OF_HAVE_BLOCKS
/*!
 * @brief Initializes an already allocated thread with the specified block.
 *
 * @param threadBlock A block which is executed by the thread
 * @return An initialized OFThread.
︙︙

Modified src/objfw-defs.h.in from [41bed793cb] to [b0cd6ea182].

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#undef OF_HAVE_PLUGINS
#undef OF_HAVE_PROCESSES
#undef OF_HAVE_PTHREADS
#undef OF_HAVE_PTHREAD_SPINLOCKS
#undef OF_HAVE_RECURSIVE_PTHREAD_MUTEXES
#undef OF_HAVE_SCHED_YIELD
#undef OF_HAVE_SOCKETS

#undef OF_HAVE_SYMLINK
#undef OF_HAVE_SYS_SOCKET_H
#undef OF_HAVE_THREADS
#undef OF_HAVE___THREAD
#undef OF_HAVE__THREAD_LOCAL
#undef OF_NINTENDO_DS
#undef OF_OBJFW_RUNTIME
#undef OF_UNIVERSAL
#undef SIZE_MAX








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#undef OF_HAVE_PLUGINS
#undef OF_HAVE_PROCESSES
#undef OF_HAVE_PTHREADS
#undef OF_HAVE_PTHREAD_SPINLOCKS
#undef OF_HAVE_RECURSIVE_PTHREAD_MUTEXES
#undef OF_HAVE_SCHED_YIELD
#undef OF_HAVE_SOCKETS
#undef OF_HAVE_STDNORETURN
#undef OF_HAVE_SYMLINK
#undef OF_HAVE_SYS_SOCKET_H
#undef OF_HAVE_THREADS
#undef OF_HAVE___THREAD
#undef OF_HAVE__THREAD_LOCAL
#undef OF_NINTENDO_DS
#undef OF_OBJFW_RUNTIME
#undef OF_UNIVERSAL
#undef SIZE_MAX

Modified src/threading.h from [79cb0c24fe] to [65cc15f272].

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	/* FIXME */
	return true;
#else
# error of_thread_detach not implemented!
#endif
}

static OF_INLINE void OF_NO_RETURN
of_thread_exit(void)
{
#if defined(OF_HAVE_PTHREADS)
	pthread_exit(NULL);
#elif defined(_WIN32)
	ExitThread(0);
#else
# error of_thread_exit not implemented!
#endif

}

static OF_INLINE void
of_once(of_once_t *control, void (*func)(void))
{
#if defined(OF_HAVE_PTHREADS)
	pthread_once(control, func);








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	/* FIXME */
	return true;
#else
# error of_thread_detach not implemented!
#endif
}

static OF_INLINE void noreturn
of_thread_exit(void)
{
#if defined(OF_HAVE_PTHREADS)
	pthread_exit(NULL);
#elif defined(_WIN32)
	ExitThread(0);
#else
# error of_thread_exit not implemented!
#endif
	OF_UNREACHABLE
}

static OF_INLINE void
of_once(of_once_t *control, void (*func)(void))
{
#if defined(OF_HAVE_PTHREADS)
	pthread_once(control, func);
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Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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