ObjFW  Diff

# define OF_LIKELY(cond) (cond)
# define OF_UNLIKELY(cond) (cond)
# define OF_CONST_FUNC
# define OF_NO_RETURN_FUNC
# define OF_WEAK_REF(sym)
#endif

#ifdef OF_BIG_ENDIAN
# define OF_BYTE_ORDER_NATIVE OF_BYTE_ORDER_BIG_ENDIAN
#else
# define OF_BYTE_ORDER_NATIVE OF_BYTE_ORDER_LITTLE_ENDIAN
#endif

#if __STDC_VERSION__ >= 201112L
# define OF_ALIGNOF(type) _Alignof(type)
# define OF_ALIGNAS(type) _Alignas(type)
#else
# define OF_ALIGNOF(type) __alignof__(type)
# define OF_ALIGNAS(type) __attribute__((__aligned__(__alignof__(type))))
#endif

# define OF_DIRECT_MEMBERS __attribute__((__objc_direct_members__))
#else
# define OF_DIRECT_MEMBERS
#endif

#ifdef OF_COMPILING_AMIGA_LIBRARY
# undef errno
extern int *_Nonnull of_get_errno(void);
# define errno (*of_get_errno())
#endif

#ifdef OF_APPLE_RUNTIME
# if defined(OF_X86_64) || defined(OF_X86) || defined(OF_ARM64) || \
    defined(OF_ARM) || defined(OF_POWERPC)
#  define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
#  define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET

#   if __OBJFW_RUNTIME_ABI__ >= 800
#    define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
#   endif
#  endif
# endif
#endif

#define OF_RETAIN_COUNT_MAX UINT_MAX
#define OF_NOT_FOUND SIZE_MAX

#ifdef OBJC_COMPILING_RUNTIME
# define OF_ENSURE(cond)						\
	do {								\
		if OF_UNLIKELY (!(cond))				\
			objc_error("ObjFWRT @ " __FILE__ ":"		\
			    OF_STRINGIFY(__LINE__),			\
			    "Failed to ensure condition:\n" #cond);	\
	} while(0)
#else
# define OF_ENSURE(cond)						\
	do {								\
		if OF_UNLIKELY (!(cond)) {				\
			fprintf(stderr, "Failed to ensure condition "	\
			    "in " __FILE__ ":%d:\n" #cond "\n",		\
			    __LINE__);					\
			abort();					\
		}							\
	} while (0)
#endif

#define OF_UNRECOGNIZED_SELECTOR of_method_not_found(self, _cmd);
#if __has_feature(objc_arc)
# define OF_INVALID_INIT_METHOD of_method_not_found(self, _cmd);
#else
# define OF_INVALID_INIT_METHOD				\
	@try {						\
		of_method_not_found(self, _cmd);	\
	} @catch (id e) {				\
		[self release];				\
		@throw e;				\
	}						\
							\
	abort();
#endif

	static void __attribute__((__constructor__(prio)))	\
	OF_PREPROCESSOR_CONCAT(constructor, __LINE__)(void)
#define OF_DESTRUCTOR(prio)					\
	static void __attribute__((__destructor__(prio)))	\
	OF_PREPROCESSOR_CONCAT(destructor, __LINE__)(void)

static OF_INLINE uint16_t OF_CONST_FUNC
OF_BSWAP16_CONST(uint16_t i)
{
	return (i & 0xFF00) >> 8 | (i & 0x00FF) << 8;
}

static OF_INLINE uint32_t OF_CONST_FUNC
OF_BSWAP32_CONST(uint32_t i)
{
	return (i & 0xFF000000) >> 24 | (i & 0x00FF0000) >> 8 |
	    (i & 0x0000FF00) << 8 | (i & 0x000000FF) << 24;
}

static OF_INLINE uint64_t OF_CONST_FUNC
OF_BSWAP64_CONST(uint64_t i)
{
	return (i & 0xFF00000000000000) >> 56 | (i & 0x00FF000000000000) >> 40 |
	    (i & 0x0000FF0000000000) >> 24 | (i & 0x000000FF00000000) >> 8 |
	    (i & 0x00000000FF000000) << 8 | (i & 0x0000000000FF0000) << 24 |
	    (i & 0x000000000000FF00) << 40 | (i & 0x00000000000000FF) << 56;
}

static OF_INLINE uint16_t OF_CONST_FUNC
OF_BSWAP16_NONCONST(uint16_t i)
{
#if defined(OF_HAVE_BUILTIN_BSWAP16)
	return __builtin_bswap16(i);
#elif (defined(OF_X86_64) || defined(OF_X86)) && defined(__GNUC__)
	__asm__ (
	    "xchgb	%h0, %b0"
	    : "=Q"(i)

	i = (i & UINT16_C(0xFF00)) >> 8 |
	    (i & UINT16_C(0x00FF)) << 8;
#endif
	return i;
}

static OF_INLINE uint32_t OF_CONST_FUNC
OF_BSWAP32_NONCONST(uint32_t i)
{
#if defined(OF_HAVE_BUILTIN_BSWAP32)
	return __builtin_bswap32(i);
#elif (defined(OF_X86_64) || defined(OF_X86)) && defined(__GNUC__)
	__asm__ (
	    "bswap	%0"
	    : "=q"(i)

	    (i & UINT32_C(0x0000FF00)) <<  8 |
	    (i & UINT32_C(0x000000FF)) << 24;
#endif
	return i;
}

static OF_INLINE uint64_t OF_CONST_FUNC
OF_BSWAP64_NONCONST(uint64_t i)
{
#if defined(OF_HAVE_BUILTIN_BSWAP64)
	return __builtin_bswap64(i);
#elif defined(OF_X86_64) && defined(__GNUC__)
	__asm__ (
	    "bswap	%0"
	    : "=r"(i)
	    : "0"(i)
	);
#elif defined(OF_X86) && defined(__GNUC__)
	__asm__ (
	    "bswap	%%eax\n\t"
	    "bswap	%%edx\n\t"
	    "xchgl	%%eax, %%edx"
	    : "=A"(i)
	    : "0"(i)
	);
#else
	i = (uint64_t)OF_BSWAP32_NONCONST((uint32_t)(i & 0xFFFFFFFF)) << 32 |
	    OF_BSWAP32_NONCONST((uint32_t)(i >> 32));
#endif
	return i;
}

#ifdef __GNUC__
# define OF_BSWAP16(i) \
    (__builtin_constant_p(i) ? OF_BSWAP16_CONST(i) : OF_BSWAP16_NONCONST(i))
# define OF_BSWAP32(i) \
    (__builtin_constant_p(i) ? OF_BSWAP32_CONST(i) : OF_BSWAP32_NONCONST(i))
# define OF_BSWAP64(i) \
    (__builtin_constant_p(i) ? OF_BSWAP64_CONST(i) : OF_BSWAP64_NONCONST(i))
#else
# define OF_BSWAP16(i) OF_BSWAP16_CONST(i)
# define OF_BSWAP32(i) OF_BSWAP32_CONST(i)
# define OF_BSWAP64(i) OF_BSWAP64_CONST(i)
#endif

static OF_INLINE uint32_t
OF_FLOAT_TO_INT_RAW(float f)
{
	uint32_t ret;
	memcpy(&ret, &f, 4);
	return ret;
}

static OF_INLINE float
OF_INT_TO_FLOAT_RAW(uint32_t uInt32)
{
	float ret;
	memcpy(&ret, &uInt32, 4);
	return ret;
}

static OF_INLINE uint64_t
OF_DOUBLE_TO_INT_RAW(double d)
{
	uint64_t ret;
	memcpy(&ret, &d, 8);
	return ret;
}

static OF_INLINE double
OF_INT_TO_DOUBLE_RAW(uint64_t uInt64)
{
	double ret;
	memcpy(&ret, &uInt64, 8);
	return ret;
}

static OF_INLINE float OF_CONST_FUNC
OF_BSWAP_FLOAT(float f)
{
	return OF_INT_TO_FLOAT_RAW(OF_BSWAP32(OF_FLOAT_TO_INT_RAW(f)));
}

static OF_INLINE double OF_CONST_FUNC
OF_BSWAP_DOUBLE(double d)
{
	return OF_INT_TO_DOUBLE_RAW(OF_BSWAP64(OF_DOUBLE_TO_INT_RAW(d)));
}

#ifdef OF_BIG_ENDIAN
# define OF_BSWAP16_IF_BE(i) OF_BSWAP16(i)
# define OF_BSWAP32_IF_BE(i) OF_BSWAP32(i)
# define OF_BSWAP64_IF_BE(i) OF_BSWAP64(i)



# define OF_BSWAP16_IF_LE(i) (i)
# define OF_BSWAP32_IF_LE(i) (i)
# define OF_BSWAP64_IF_LE(i) (i)



#else



# define OF_BSWAP16_IF_BE(i) (i)
# define OF_BSWAP32_IF_BE(i) (i)
# define OF_BSWAP64_IF_BE(i) (i)



# define OF_BSWAP16_IF_LE(i) OF_BSWAP16(i)
# define OF_BSWAP32_IF_LE(i) OF_BSWAP32(i)
# define OF_BSWAP64_IF_LE(i) OF_BSWAP64(i)
#endif

#ifdef OF_FLOAT_BIG_ENDIAN
# define OF_BSWAP_FLOAT_IF_BE(i) OF_BSWAP_FLOAT(i)
# define OF_BSWAP_DOUBLE_IF_BE(i) OF_BSWAP_DOUBLE(i)


# define OF_BSWAP_FLOAT_IF_LE(i) (i)
# define OF_BSWAP_DOUBLE_IF_LE(i) (i)


#else


# define OF_BSWAP_FLOAT_IF_BE(i) (i)
# define OF_BSWAP_DOUBLE_IF_BE(i) (i)


# define OF_BSWAP_FLOAT_IF_LE(i) OF_BSWAP_FLOAT(i)
# define OF_BSWAP_DOUBLE_IF_LE(i) OF_BSWAP_DOUBLE(i)
#endif

static OF_INLINE uint16_t
of_be16_ptr_read(void *_Nonnull ptr)
{
	uint16_t value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP16_IF_LE(value);
}

static OF_INLINE uint32_t
of_be32_ptr_read(void *_Nonnull ptr)
{
	uint32_t value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP32_IF_LE(value);
}

static OF_INLINE uint64_t
of_be64_ptr_read(void *_Nonnull ptr)
{
	uint64_t value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP64_IF_LE(value);
}

static OF_INLINE float
of_be_float_ptr_read(void *_Nonnull ptr)
{
	float value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP_FLOAT_IF_LE(value);
}

static OF_INLINE double
of_be_double_ptr_read(void *_Nonnull ptr)
{
	double value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP_DOUBLE_IF_LE(value);
}

static OF_INLINE uint16_t
of_le16_ptr_read(void *_Nonnull ptr)
{
	uint16_t value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP16_IF_BE(value);
}

static OF_INLINE uint32_t
of_le32_ptr_read(void *_Nonnull ptr)
{
	uint32_t value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP32_IF_BE(value);
}

static OF_INLINE uint64_t
of_le64_ptr_read(void *_Nonnull ptr)
{
	uint64_t value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP64_IF_BE(value);
}

static OF_INLINE float
of_le_float_ptr_read(void *_Nonnull ptr)
{
	float value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP_FLOAT_IF_BE(value);
}

static OF_INLINE double
of_le_double_ptr_read(void *_Nonnull ptr)
{
	double value;
	memcpy(&value, ptr, sizeof(value));
	return OF_BSWAP_DOUBLE_IF_BE(value);
}

static OF_INLINE void
of_be16_ptr_write(void *_Nonnull ptr, uint16_t value)
{
	value = OF_BSWAP16_IF_LE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_be32_ptr_write(void *_Nonnull ptr, uint32_t value)
{
	value = OF_BSWAP32_IF_LE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_be64_ptr_write(void *_Nonnull ptr, uint64_t value)
{
	value = OF_BSWAP64_IF_LE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_be_float_ptr_write(void *_Nonnull ptr, float value)
{
	value = OF_BSWAP_FLOAT_IF_LE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_be_double_ptr_write(void *_Nonnull ptr, double value)
{
	value = OF_BSWAP_DOUBLE_IF_LE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_le16_ptr_write(void *_Nonnull ptr, uint16_t value)
{
	value = OF_BSWAP16_IF_BE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_le32_ptr_write(void *_Nonnull ptr, uint32_t value)
{
	value = OF_BSWAP32_IF_BE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_le64_ptr_write(void *_Nonnull ptr, uint64_t value)
{
	value = OF_BSWAP64_IF_BE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_le_float_ptr_write(void *_Nonnull ptr, float value)
{
	value = OF_BSWAP_FLOAT_IF_BE(value);
	memcpy(ptr, &value, sizeof(value));
}

static OF_INLINE void
of_le_double_ptr_write(void *_Nonnull ptr, double value)
{
	value = OF_BSWAP_DOUBLE_IF_BE(value);
	memcpy(ptr, &value, sizeof(value));
}

#define OF_ROL(value, bits)						\
    (((bits) % (sizeof(value) * 8)) > 0					\
    ? ((value) << ((bits) % (sizeof(value) * 8))) |			\
    ((value) >> (sizeof(value) * 8 - ((bits) % (sizeof(value) * 8))))	\
    : (value))
#define OF_ROR(value, bits)						\
    (((bits) % (sizeof(value) * 8)) > 0					\
    ? ((value) >> ((bits) % (sizeof(value) * 8))) |			\
    ((value) << (sizeof(value) * 8 - ((bits) % (sizeof(value) * 8))))	\
    : (value))


#define OF_ROUND_UP_POW2(pow2, value) (((value) + (pow2) - 1) & ~((pow2) - 1))

#define OF_HASH_INIT(hash) hash = of_hash_seed;
#define OF_HASH_ADD(hash, byte)			\
	{					\
		hash += (uint8_t)(byte);	\
		hash += (hash << 10);		\
		hash ^= (hash >> 6);		\
	}
#define OF_HASH_FINALIZE(hash)		\
	{				\
		hash += (hash << 3);	\
		hash ^= (hash >> 11);	\
		hash += (hash << 15);	\
	}
#define OF_HASH_ADD_HASH(hash, other)				\
	{							\
		uint32_t otherCopy = (uint32_t)other;		\
		OF_HASH_ADD(hash, (otherCopy >> 24) & 0xFF);	\
		OF_HASH_ADD(hash, (otherCopy >> 16) & 0xFF);	\
		OF_HASH_ADD(hash, (otherCopy >>  8) & 0xFF);	\
		OF_HASH_ADD(hash, otherCopy & 0xFF);		\
	}

static OF_INLINE bool
of_bitset_isset(unsigned char *_Nonnull storage, size_t idx)
{
	return storage[idx / CHAR_BIT] & (1u << (idx % CHAR_BIT));
}

static OF_INLINE void
of_bitset_set(unsigned char *_Nonnull storage, size_t idx)
{
	storage[idx / CHAR_BIT] |= (1u << (idx % CHAR_BIT));
}

static OF_INLINE void
of_bitset_clear(unsigned char *_Nonnull storage, size_t idx)
{
	storage[idx / CHAR_BIT] &= ~(1u << (idx % CHAR_BIT));
}

static OF_INLINE char *_Nullable
of_strdup(const char *_Nonnull string)
{
	char *copy;
	size_t length = strlen(string);

	if ((copy = (char *)malloc(length + 1)) == NULL)
		return NULL;

	memcpy(copy, string, length + 1);

	return copy;
}

static OF_INLINE void
of_explicit_memset(void *_Nonnull buffer_, int character, size_t length)
{
	volatile unsigned char *buffer = (volatile unsigned char *)buffer_;

	while (buffer < (unsigned char *)buffer_ + length)
		*buffer++ = character;
}

static OF_INLINE bool
of_ascii_isalpha(char c)
{
	return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
}

static OF_INLINE bool
of_ascii_isdigit(char c)
{
	return (c >= '0' && c <= '9');
}

static OF_INLINE bool
of_ascii_isalnum(char c)
{
	return (of_ascii_isalpha(c) || of_ascii_isdigit(c));
}

static OF_INLINE bool
of_ascii_isspace(char c)
{
	return (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f' ||
	    c == '\v');
}

static OF_INLINE char
of_ascii_toupper(char c)
{
	return (c >= 'a' && c <= 'z' ? 'A' + (c - 'a') : c);
}

static OF_INLINE char
of_ascii_tolower(char c)
{
	return (c >= 'A' && c <= 'Z' ? 'a' + (c - 'A') : c);
}
#endif