ObjFW  Diff

# define OF_ALIGNOF(type) _Alignof(type)
# define OF_ALIGNAS(type) _Alignas(type)
#else
# define OF_ALIGNOF(type) __alignof__(type)
# define OF_ALIGNAS(type) OF_ALIGN(OF_ALIGNOF(type))
#endif

#if __STDC_VERSION__ >= 201112L && defined(OF_HAVE_MAX_ALIGN_T)
# define OF_BIGGEST_ALIGNMENT _Alignof(max_align_t)
#else
# ifdef __BIGGEST_ALIGNMENT__
#  define OF_BIGGEST_ALIGNMENT __BIGGEST_ALIGNMENT__
# else
#  /* Hopefully no arch needs more than 16 byte alignment */
#  define OF_BIGGEST_ALIGNMENT 16
# endif
#ifdef __BIGGEST_ALIGNMENT__
# define OF_BIGGEST_ALIGNMENT __BIGGEST_ALIGNMENT__
#else
/* Hopefully no arch needs more than 16 byte alignment */
# define OF_BIGGEST_ALIGNMENT 16
#endif
/*
 * We use SSE inline assembly on AMD64 and x86, so it must never be smaller
 * than 16.
 */
#if (defined(OF_AMD64) || defined(OF_X86)) && OF_BIGGEST_ALIGNMENT < 16
# undef OF_BIGGEST_ALIGNMENT
# define OF_BIGGEST_ALIGNMENT 16
#endif

#define OF_PREPROCESSOR_CONCAT2(a, b) a##b
#define OF_PREPROCESSOR_CONCAT(a, b) OF_PREPROCESSOR_CONCAT2(a, b)

#if __OBJFW_RUNTIME_ABI__ || (defined(OF_APPLE_RUNTIME) && defined(__OBJC2__))
# define OF_HAVE_NONFRAGILE_IVARS