C++| 编译器预定义的宏_vlambda技术博客

➜ ~ clang -dM -E -x c /dev/null#define _LP64 1#define __APPLE_CC__ 6000#define __APPLE__ 1#define __ATOMIC_ACQUIRE 2#define __ATOMIC_ACQ_REL 4#define __ATOMIC_CONSUME 1#define __ATOMIC_RELAXED 0#define __ATOMIC_RELEASE 3#define __ATOMIC_SEQ_CST 5#define __BIGGEST_ALIGNMENT__ 16#define __BLOCKS__ 1#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__#define __CHAR16_TYPE__ unsigned short#define __CHAR32_TYPE__ unsigned int#define __CHAR_BIT__ 8#define __CLANG_ATOMIC_BOOL_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR16_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR32_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR_LOCK_FREE 2#define __CLANG_ATOMIC_INT_LOCK_FREE 2#define __CLANG_ATOMIC_LLONG_LOCK_FREE 2#define __CLANG_ATOMIC_LONG_LOCK_FREE 2#define __CLANG_ATOMIC_POINTER_LOCK_FREE 2#define __CLANG_ATOMIC_SHORT_LOCK_FREE 2#define __CLANG_ATOMIC_WCHAR_T_LOCK_FREE 2#define __CONSTANT_CFSTRINGS__ 1#define __DBL_DECIMAL_DIG__ 17#define __DBL_DENORM_MIN__ 4.9406564584124654e-324#define __DBL_DIG__ 15#define __DBL_EPSILON__ 2.2204460492503131e-16#define __DBL_HAS_DENORM__ 1#define __DBL_HAS_INFINITY__ 1#define __DBL_HAS_QUIET_NAN__ 1#define __DBL_MANT_DIG__ 53#define __DBL_MAX_10_EXP__ 308#define __DBL_MAX_EXP__ 1024#define __DBL_MAX__ 1.7976931348623157e+308#define __DBL_MIN_10_EXP__ (-307)#define __DBL_MIN_EXP__ (-1021)#define __DBL_MIN__ 2.2250738585072014e-308#define __DECIMAL_DIG__ __LDBL_DECIMAL_DIG__#define __DYNAMIC__ 1#define __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 120000#define __ENVIRONMENT_OS_VERSION_MIN_REQUIRED__ 120000#define __FINITE_MATH_ONLY__ 0#define __FLT16_DECIMAL_DIG__ 5#define __FLT16_DENORM_MIN__ 5.9604644775390625e-8F16#define __FLT16_DIG__ 3#define __FLT16_EPSILON__ 9.765625e-4F16#define __FLT16_HAS_DENORM__ 1#define __FLT16_HAS_INFINITY__ 1#define __FLT16_HAS_QUIET_NAN__ 1#define __FLT16_MANT_DIG__ 11#define __FLT16_MAX_10_EXP__ 4#define __FLT16_MAX_EXP__ 16#define __FLT16_MAX__ 6.5504e+4F16#define __FLT16_MIN_10_EXP__ (-4)#define __FLT16_MIN_EXP__ (-13)#define __FLT16_MIN__ 6.103515625e-5F16#define __FLT_DECIMAL_DIG__ 9#define __FLT_DENORM_MIN__ 1.40129846e-45F#define __FLT_DIG__ 6#define __FLT_EPSILON__ 1.19209290e-7F#define __FLT_EVAL_METHOD__ 0#define __FLT_HAS_DENORM__ 1#define __FLT_HAS_INFINITY__ 1#define __FLT_HAS_QUIET_NAN__ 1#define __FLT_MANT_DIG__ 24#define __FLT_MAX_10_EXP__ 38#define __FLT_MAX_EXP__ 128#define __FLT_MAX__ 3.40282347e+38F#define __FLT_MIN_10_EXP__ (-37)#define __FLT_MIN_EXP__ (-125)#define __FLT_MIN__ 1.17549435e-38F#define __FLT_RADIX__ 2#define __FXSR__ 1#define __GCC_ASM_FLAG_OUTPUTS__ 1#define __GCC_ATOMIC_BOOL_LOCK_FREE 2#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR_LOCK_FREE 2#define __GCC_ATOMIC_INT_LOCK_FREE 2#define __GCC_ATOMIC_LLONG_LOCK_FREE 2#define __GCC_ATOMIC_LONG_LOCK_FREE 2#define __GCC_ATOMIC_POINTER_LOCK_FREE 2#define __GCC_ATOMIC_SHORT_LOCK_FREE 2#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1#define __GNUC_MINOR__ 2#define __GNUC_PATCHLEVEL__ 1#define __GNUC_STDC_INLINE__ 1#define __GNUC__ 4#define __GXX_ABI_VERSION 1002#define __INT16_C_SUFFIX__#define __INT16_FMTd__ "hd"#define __INT16_FMTi__ "hi"#define __INT16_MAX__ 32767#define __INT16_TYPE__ short#define __INT32_C_SUFFIX__#define __INT32_FMTd__ "d"#define __INT32_FMTi__ "i"#define __INT32_MAX__ 2147483647#define __INT32_TYPE__ int#define __INT64_C_SUFFIX__ LL#define __INT64_FMTd__ "lld"#define __INT64_FMTi__ "lli"#define __INT64_MAX__ 9223372036854775807LL#define __INT64_TYPE__ long long int#define __INT8_C_SUFFIX__#define __INT8_FMTd__ "hhd"#define __INT8_FMTi__ "hhi"#define __INT8_MAX__ 127#define __INT8_TYPE__ signed char#define __INTMAX_C_SUFFIX__ L#define __INTMAX_FMTd__ "ld"#define __INTMAX_FMTi__ "li"#define __INTMAX_MAX__ 9223372036854775807L#define __INTMAX_TYPE__ long int#define __INTMAX_WIDTH__ 64#define __INTPTR_FMTd__ "ld"#define __INTPTR_FMTi__ "li"#define __INTPTR_MAX__ 9223372036854775807L#define __INTPTR_TYPE__ long int#define __INTPTR_WIDTH__ 64#define __INT_FAST16_FMTd__ "hd"#define __INT_FAST16_FMTi__ "hi"#define __INT_FAST16_MAX__ 32767#define __INT_FAST16_TYPE__ short#define __INT_FAST32_FMTd__ "d"#define __INT_FAST32_FMTi__ "i"#define __INT_FAST32_MAX__ 2147483647#define __INT_FAST32_TYPE__ int#define __INT_FAST64_FMTd__ "lld"#define __INT_FAST64_FMTi__ "lli"#define __INT_FAST64_MAX__ 9223372036854775807LL#define __INT_FAST64_TYPE__ long long int#define __INT_FAST8_FMTd__ "hhd"#define __INT_FAST8_FMTi__ "hhi"#define __INT_FAST8_MAX__ 127#define __INT_FAST8_TYPE__ signed char#define __INT_LEAST16_FMTd__ "hd"#define __INT_LEAST16_FMTi__ "hi"#define __INT_LEAST16_MAX__ 32767#define __INT_LEAST16_TYPE__ short#define __INT_LEAST32_FMTd__ "d"#define __INT_LEAST32_FMTi__ "i"#define __INT_LEAST32_MAX__ 2147483647#define __INT_LEAST32_TYPE__ int#define __INT_LEAST64_FMTd__ "lld"#define __INT_LEAST64_FMTi__ "lli"#define __INT_LEAST64_MAX__ 9223372036854775807LL#define __INT_LEAST64_TYPE__ long long int#define __INT_LEAST8_FMTd__ "hhd"#define __INT_LEAST8_FMTi__ "hhi"#define __INT_LEAST8_MAX__ 127#define __INT_LEAST8_TYPE__ signed char#define __INT_MAX__ 2147483647#define __LAHF_SAHF__ 1#define __LDBL_DECIMAL_DIG__ 21#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L#define __LDBL_DIG__ 18#define __LDBL_EPSILON__ 1.08420217248550443401e-19L#define __LDBL_HAS_DENORM__ 1#define __LDBL_HAS_INFINITY__ 1#define __LDBL_HAS_QUIET_NAN__ 1#define __LDBL_MANT_DIG__ 64#define __LDBL_MAX_10_EXP__ 4932#define __LDBL_MAX_EXP__ 16384#define __LDBL_MAX__ 1.18973149535723176502e+4932L#define __LDBL_MIN_10_EXP__ (-4931)#define __LDBL_MIN_EXP__ (-16381)#define __LDBL_MIN__ 3.36210314311209350626e-4932L#define __LITTLE_ENDIAN__ 1#define __LONG_LONG_MAX__ 9223372036854775807LL#define __LONG_MAX__ 9223372036854775807L#define __LP64__ 1#define __MACH__ 1#define __MMX__ 1#define __NO_INLINE__ 1#define __NO_MATH_INLINES 1#define __OBJC_BOOL_IS_BOOL 0#define __OPENCL_MEMORY_SCOPE_ALL_SVM_DEVICES 3#define __OPENCL_MEMORY_SCOPE_DEVICE 2#define __OPENCL_MEMORY_SCOPE_SUB_GROUP 4#define __OPENCL_MEMORY_SCOPE_WORK_GROUP 1#define __OPENCL_MEMORY_SCOPE_WORK_ITEM 0#define __ORDER_BIG_ENDIAN__ 4321#define __ORDER_LITTLE_ENDIAN__ 1234#define __ORDER_PDP_ENDIAN__ 3412#define __PIC__ 2#define __POINTER_WIDTH__ 64#define __PRAGMA_REDEFINE_EXTNAME 1#define __PTRDIFF_FMTd__ "ld"#define __PTRDIFF_FMTi__ "li"#define __PTRDIFF_MAX__ 9223372036854775807L#define __PTRDIFF_TYPE__ long int#define __PTRDIFF_WIDTH__ 64#define __REGISTER_PREFIX__#define __SCHAR_MAX__ 127#define __SEG_FS 1#define __SEG_GS 1#define __SHRT_MAX__ 32767#define __SIG_ATOMIC_MAX__ 2147483647#define __SIG_ATOMIC_WIDTH__ 32#define __SIZEOF_DOUBLE__ 8#define __SIZEOF_FLOAT__ 4#define __SIZEOF_INT128__ 16#define __SIZEOF_INT__ 4#define __SIZEOF_LONG_DOUBLE__ 16#define __SIZEOF_LONG_LONG__ 8#define __SIZEOF_LONG__ 8#define __SIZEOF_POINTER__ 8#define __SIZEOF_PTRDIFF_T__ 8#define __SIZEOF_SHORT__ 2#define __SIZEOF_SIZE_T__ 8#define __SIZEOF_WCHAR_T__ 4#define __SIZEOF_WINT_T__ 4#define __SIZE_FMTX__ "lX"#define __SIZE_FMTo__ "lo"#define __SIZE_FMTu__ "lu"#define __SIZE_FMTx__ "lx"#define __SIZE_MAX__ 18446744073709551615UL#define __SIZE_TYPE__ long unsigned int#define __SIZE_WIDTH__ 64#define __SSE2_MATH__ 1#define __SSE2__ 1#define __SSE3__ 1#define __SSE4_1__ 1#define __SSE_MATH__ 1#define __SSE__ 1#define __SSP__ 1#define __SSSE3__ 1#define __STDC_HOSTED__ 1#define __STDC_NO_THREADS__ 1#define __STDC_UTF_16__ 1#define __STDC_UTF_32__ 1#define __STDC_VERSION__ 201710L#define __STDC__ 1#define __UINT16_C_SUFFIX__#define __UINT16_FMTX__ "hX"#define __UINT16_FMTo__ "ho"#define __UINT16_FMTu__ "hu"#define __UINT16_FMTx__ "hx"#define __UINT16_MAX__ 65535#define __UINT16_TYPE__ unsigned short#define __UINT32_C_SUFFIX__ U#define __UINT32_FMTX__ "X"#define __UINT32_FMTo__ "o"#define __UINT32_FMTu__ "u"#define __UINT32_FMTx__ "x"#define __UINT32_MAX__ 4294967295U#define __UINT32_TYPE__ unsigned int#define __UINT64_C_SUFFIX__ ULL#define __UINT64_FMTX__ "llX"#define __UINT64_FMTo__ "llo"#define __UINT64_FMTu__ "llu"#define __UINT64_FMTx__ "llx"#define __UINT64_MAX__ 18446744073709551615ULL#define __UINT64_TYPE__ long long unsigned int#define __UINT8_C_SUFFIX__#define __UINT8_FMTX__ "hhX"#define __UINT8_FMTo__ "hho"#define __UINT8_FMTu__ "hhu"#define __UINT8_FMTx__ "hhx"#define __UINT8_MAX__ 255#define __UINT8_TYPE__ unsigned char#define __UINTMAX_C_SUFFIX__ UL#define __UINTMAX_FMTX__ "lX"#define __UINTMAX_FMTo__ "lo"#define __UINTMAX_FMTu__ "lu"#define __UINTMAX_FMTx__ "lx"#define __UINTMAX_MAX__ 18446744073709551615UL#define __UINTMAX_TYPE__ long unsigned int#define __UINTMAX_WIDTH__ 64#define __UINTPTR_FMTX__ "lX"#define __UINTPTR_FMTo__ "lo"#define __UINTPTR_FMTu__ "lu"#define __UINTPTR_FMTx__ "lx"#define __UINTPTR_MAX__ 18446744073709551615UL#define __UINTPTR_TYPE__ long unsigned int#define __UINTPTR_WIDTH__ 64#define __UINT_FAST16_FMTX__ "hX"#define __UINT_FAST16_FMTo__ "ho"#define __UINT_FAST16_FMTu__ "hu"#define __UINT_FAST16_FMTx__ "hx"#define __UINT_FAST16_MAX__ 65535#define __UINT_FAST16_TYPE__ unsigned short#define __UINT_FAST32_FMTX__ "X"#define __UINT_FAST32_FMTo__ "o"#define __UINT_FAST32_FMTu__ "u"#define __UINT_FAST32_FMTx__ "x"#define __UINT_FAST32_MAX__ 4294967295U#define __UINT_FAST32_TYPE__ unsigned int#define __UINT_FAST64_FMTX__ "llX"#define __UINT_FAST64_FMTo__ "llo"#define __UINT_FAST64_FMTu__ "llu"#define __UINT_FAST64_FMTx__ "llx"#define __UINT_FAST64_MAX__ 18446744073709551615ULL#define __UINT_FAST64_TYPE__ long long unsigned int#define __UINT_FAST8_FMTX__ "hhX"#define __UINT_FAST8_FMTo__ "hho"#define __UINT_FAST8_FMTu__ "hhu"#define __UINT_FAST8_FMTx__ "hhx"#define __UINT_FAST8_MAX__ 255#define __UINT_FAST8_TYPE__ unsigned char#define __UINT_LEAST16_FMTX__ "hX"#define __UINT_LEAST16_FMTo__ "ho"#define __UINT_LEAST16_FMTu__ "hu"#define __UINT_LEAST16_FMTx__ "hx"#define __UINT_LEAST16_MAX__ 65535#define __UINT_LEAST16_TYPE__ unsigned short#define __UINT_LEAST32_FMTX__ "X"#define __UINT_LEAST32_FMTo__ "o"#define __UINT_LEAST32_FMTu__ "u"#define __UINT_LEAST32_FMTx__ "x"#define __UINT_LEAST32_MAX__ 4294967295U#define __UINT_LEAST32_TYPE__ unsigned int#define __UINT_LEAST64_FMTX__ "llX"#define __UINT_LEAST64_FMTo__ "llo"#define __UINT_LEAST64_FMTu__ "llu"#define __UINT_LEAST64_FMTx__ "llx"#define __UINT_LEAST64_MAX__ 18446744073709551615ULL#define __UINT_LEAST64_TYPE__ long long unsigned int#define __UINT_LEAST8_FMTX__ "hhX"#define __UINT_LEAST8_FMTo__ "hho"#define __UINT_LEAST8_FMTu__ "hhu"#define __UINT_LEAST8_FMTx__ "hhx"#define __UINT_LEAST8_MAX__ 255#define __UINT_LEAST8_TYPE__ unsigned char#define __USER_LABEL_PREFIX__ _#define __VERSION__ "Apple LLVM 13.0.0 (clang-1300.0.29.30)"#define __WCHAR_MAX__ 2147483647#define __WCHAR_TYPE__ int#define __WCHAR_WIDTH__ 32#define __WINT_MAX__ 2147483647#define __WINT_TYPE__ int#define __WINT_WIDTH__ 32#define __amd64 1#define __amd64__ 1#define __apple_build_version__ 13000029#define __block __attribute__((__blocks__(byref)))#define __clang__ 1#define __clang_major__ 13#define __clang_minor__ 0#define __clang_patchlevel__ 0#define __clang_version__ "13.0.0 (clang-1300.0.29.30)"#define __code_model_small__ 1#define __core2 1#define __core2__ 1#define __llvm__ 1#define __nonnull _Nonnull#define __null_unspecified _Null_unspecified#define __nullable _Nullable#define __pic__ 2#define __seg_fs __attribute__((address_space(257)))#define __seg_gs __attribute__((address_space(256)))#define __strong#define __tune_core2__ 1#define __unsafe_unretained#define __weak __attribute__((objc_gc(weak)))#define __x86_64 1#define __x86_64__ 1➜ ~

➜ ~ clang++ -dM -E -x c++ /dev/null#define _LP64 1#define __APPLE_CC__ 6000#define __APPLE__ 1#define __ATOMIC_ACQUIRE 2#define __ATOMIC_ACQ_REL 4#define __ATOMIC_CONSUME 1#define __ATOMIC_RELAXED 0#define __ATOMIC_RELEASE 3#define __ATOMIC_SEQ_CST 5#define __BIGGEST_ALIGNMENT__ 16#define __BLOCKS__ 1#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__#define __CHAR16_TYPE__ unsigned short#define __CHAR32_TYPE__ unsigned int#define __CHAR_BIT__ 8#define __CLANG_ATOMIC_BOOL_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR16_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR32_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR_LOCK_FREE 2#define __CLANG_ATOMIC_INT_LOCK_FREE 2#define __CLANG_ATOMIC_LLONG_LOCK_FREE 2#define __CLANG_ATOMIC_LONG_LOCK_FREE 2#define __CLANG_ATOMIC_POINTER_LOCK_FREE 2#define __CLANG_ATOMIC_SHORT_LOCK_FREE 2#define __CLANG_ATOMIC_WCHAR_T_LOCK_FREE 2#define __CONSTANT_CFSTRINGS__ 1#define __DBL_DECIMAL_DIG__ 17#define __DBL_DENORM_MIN__ 4.9406564584124654e-324#define __DBL_DIG__ 15#define __DBL_EPSILON__ 2.2204460492503131e-16#define __DBL_HAS_DENORM__ 1#define __DBL_HAS_INFINITY__ 1#define __DBL_HAS_QUIET_NAN__ 1#define __DBL_MANT_DIG__ 53#define __DBL_MAX_10_EXP__ 308#define __DBL_MAX_EXP__ 1024#define __DBL_MAX__ 1.7976931348623157e+308#define __DBL_MIN_10_EXP__ (-307)#define __DBL_MIN_EXP__ (-1021)#define __DBL_MIN__ 2.2250738585072014e-308#define __DECIMAL_DIG__ __LDBL_DECIMAL_DIG__#define __DEPRECATED 1#define __DYNAMIC__ 1#define __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 120000#define __ENVIRONMENT_OS_VERSION_MIN_REQUIRED__ 120000#define __EXCEPTIONS 1#define __FINITE_MATH_ONLY__ 0#define __FLT16_DECIMAL_DIG__ 5#define __FLT16_DENORM_MIN__ 5.9604644775390625e-8F16#define __FLT16_DIG__ 3#define __FLT16_EPSILON__ 9.765625e-4F16#define __FLT16_HAS_DENORM__ 1#define __FLT16_HAS_INFINITY__ 1#define __FLT16_HAS_QUIET_NAN__ 1#define __FLT16_MANT_DIG__ 11#define __FLT16_MAX_10_EXP__ 4#define __FLT16_MAX_EXP__ 16#define __FLT16_MAX__ 6.5504e+4F16#define __FLT16_MIN_10_EXP__ (-4)#define __FLT16_MIN_EXP__ (-13)#define __FLT16_MIN__ 6.103515625e-5F16#define __FLT_DECIMAL_DIG__ 9#define __FLT_DENORM_MIN__ 1.40129846e-45F#define __FLT_DIG__ 6#define __FLT_EPSILON__ 1.19209290e-7F#define __FLT_EVAL_METHOD__ 0#define __FLT_HAS_DENORM__ 1#define __FLT_HAS_INFINITY__ 1#define __FLT_HAS_QUIET_NAN__ 1#define __FLT_MANT_DIG__ 24#define __FLT_MAX_10_EXP__ 38#define __FLT_MAX_EXP__ 128#define __FLT_MAX__ 3.40282347e+38F#define __FLT_MIN_10_EXP__ (-37)#define __FLT_MIN_EXP__ (-125)#define __FLT_MIN__ 1.17549435e-38F#define __FLT_RADIX__ 2#define __FXSR__ 1#define __GCC_ASM_FLAG_OUTPUTS__ 1#define __GCC_ATOMIC_BOOL_LOCK_FREE 2#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR_LOCK_FREE 2#define __GCC_ATOMIC_INT_LOCK_FREE 2#define __GCC_ATOMIC_LLONG_LOCK_FREE 2#define __GCC_ATOMIC_LONG_LOCK_FREE 2#define __GCC_ATOMIC_POINTER_LOCK_FREE 2#define __GCC_ATOMIC_SHORT_LOCK_FREE 2#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1#define __GLIBCXX_BITSIZE_INT_N_0 128#define __GLIBCXX_TYPE_INT_N_0 __int128#define __GNUC_GNU_INLINE__ 1#define __GNUC_MINOR__ 2#define __GNUC_PATCHLEVEL__ 1#define __GNUC__ 4#define __GNUG__ 4#define __GXX_ABI_VERSION 1002#define __GXX_RTTI 1#define __GXX_WEAK__ 1#define __INT16_C_SUFFIX__#define __INT16_FMTd__ "hd"#define __INT16_FMTi__ "hi"#define __INT16_MAX__ 32767#define __INT16_TYPE__ short#define __INT32_C_SUFFIX__#define __INT32_FMTd__ "d"#define __INT32_FMTi__ "i"#define __INT32_MAX__ 2147483647#define __INT32_TYPE__ int#define __INT64_C_SUFFIX__ LL#define __INT64_FMTd__ "lld"#define __INT64_FMTi__ "lli"#define __INT64_MAX__ 9223372036854775807LL#define __INT64_TYPE__ long long int#define __INT8_C_SUFFIX__#define __INT8_FMTd__ "hhd"#define __INT8_FMTi__ "hhi"#define __INT8_MAX__ 127#define __INT8_TYPE__ signed char#define __INTMAX_C_SUFFIX__ L#define __INTMAX_FMTd__ "ld"#define __INTMAX_FMTi__ "li"#define __INTMAX_MAX__ 9223372036854775807L#define __INTMAX_TYPE__ long int#define __INTMAX_WIDTH__ 64#define __INTPTR_FMTd__ "ld"#define __INTPTR_FMTi__ "li"#define __INTPTR_MAX__ 9223372036854775807L#define __INTPTR_TYPE__ long int#define __INTPTR_WIDTH__ 64#define __INT_FAST16_FMTd__ "hd"#define __INT_FAST16_FMTi__ "hi"#define __INT_FAST16_MAX__ 32767#define __INT_FAST16_TYPE__ short#define __INT_FAST32_FMTd__ "d"#define __INT_FAST32_FMTi__ "i"#define __INT_FAST32_MAX__ 2147483647#define __INT_FAST32_TYPE__ int#define __INT_FAST64_FMTd__ "lld"#define __INT_FAST64_FMTi__ "lli"#define __INT_FAST64_MAX__ 9223372036854775807LL#define __INT_FAST64_TYPE__ long long int#define __INT_FAST8_FMTd__ "hhd"#define __INT_FAST8_FMTi__ "hhi"#define __INT_FAST8_MAX__ 127#define __INT_FAST8_TYPE__ signed char#define __INT_LEAST16_FMTd__ "hd"#define __INT_LEAST16_FMTi__ "hi"#define __INT_LEAST16_MAX__ 32767#define __INT_LEAST16_TYPE__ short#define __INT_LEAST32_FMTd__ "d"#define __INT_LEAST32_FMTi__ "i"#define __INT_LEAST32_MAX__ 2147483647#define __INT_LEAST32_TYPE__ int#define __INT_LEAST64_FMTd__ "lld"#define __INT_LEAST64_FMTi__ "lli"#define __INT_LEAST64_MAX__ 9223372036854775807LL#define __INT_LEAST64_TYPE__ long long int#define __INT_LEAST8_FMTd__ "hhd"#define __INT_LEAST8_FMTi__ "hhi"#define __INT_LEAST8_MAX__ 127#define __INT_LEAST8_TYPE__ signed char#define __INT_MAX__ 2147483647#define __LAHF_SAHF__ 1#define __LDBL_DECIMAL_DIG__ 21#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L#define __LDBL_DIG__ 18#define __LDBL_EPSILON__ 1.08420217248550443401e-19L#define __LDBL_HAS_DENORM__ 1#define __LDBL_HAS_INFINITY__ 1#define __LDBL_HAS_QUIET_NAN__ 1#define __LDBL_MANT_DIG__ 64#define __LDBL_MAX_10_EXP__ 4932#define __LDBL_MAX_EXP__ 16384#define __LDBL_MAX__ 1.18973149535723176502e+4932L#define __LDBL_MIN_10_EXP__ (-4931)#define __LDBL_MIN_EXP__ (-16381)#define __LDBL_MIN__ 3.36210314311209350626e-4932L#define __LITTLE_ENDIAN__ 1#define __LONG_LONG_MAX__ 9223372036854775807LL#define __LONG_MAX__ 9223372036854775807L#define __LP64__ 1#define __MACH__ 1#define __MMX__ 1#define __NO_INLINE__ 1#define __NO_MATH_INLINES 1#define __OBJC_BOOL_IS_BOOL 0#define __OPENCL_MEMORY_SCOPE_ALL_SVM_DEVICES 3#define __OPENCL_MEMORY_SCOPE_DEVICE 2#define __OPENCL_MEMORY_SCOPE_SUB_GROUP 4#define __OPENCL_MEMORY_SCOPE_WORK_GROUP 1#define __OPENCL_MEMORY_SCOPE_WORK_ITEM 0#define __ORDER_BIG_ENDIAN__ 4321#define __ORDER_LITTLE_ENDIAN__ 1234#define __ORDER_PDP_ENDIAN__ 3412#define __PIC__ 2#define __POINTER_WIDTH__ 64#define __PRAGMA_REDEFINE_EXTNAME 1#define __PTRDIFF_FMTd__ "ld"#define __PTRDIFF_FMTi__ "li"#define __PTRDIFF_MAX__ 9223372036854775807L#define __PTRDIFF_TYPE__ long int#define __PTRDIFF_WIDTH__ 64#define __REGISTER_PREFIX__#define __SCHAR_MAX__ 127#define __SEG_FS 1#define __SEG_GS 1#define __SHRT_MAX__ 32767#define __SIG_ATOMIC_MAX__ 2147483647#define __SIG_ATOMIC_WIDTH__ 32#define __SIZEOF_DOUBLE__ 8#define __SIZEOF_FLOAT__ 4#define __SIZEOF_INT128__ 16#define __SIZEOF_INT__ 4#define __SIZEOF_LONG_DOUBLE__ 16#define __SIZEOF_LONG_LONG__ 8#define __SIZEOF_LONG__ 8#define __SIZEOF_POINTER__ 8#define __SIZEOF_PTRDIFF_T__ 8#define __SIZEOF_SHORT__ 2#define __SIZEOF_SIZE_T__ 8#define __SIZEOF_WCHAR_T__ 4#define __SIZEOF_WINT_T__ 4#define __SIZE_FMTX__ "lX"#define __SIZE_FMTo__ "lo"#define __SIZE_FMTu__ "lu"#define __SIZE_FMTx__ "lx"#define __SIZE_MAX__ 18446744073709551615UL#define __SIZE_TYPE__ long unsigned int#define __SIZE_WIDTH__ 64#define __SSE2_MATH__ 1#define __SSE2__ 1#define __SSE3__ 1#define __SSE4_1__ 1#define __SSE_MATH__ 1#define __SSE__ 1#define __SSP__ 1#define __SSSE3__ 1#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 16UL#define __STDCPP_THREADS__ 1#define __STDC_HOSTED__ 1#define __STDC_NO_THREADS__ 1#define __STDC_UTF_16__ 1#define __STDC_UTF_32__ 1#define __STDC__ 1#define __UINT16_C_SUFFIX__#define __UINT16_FMTX__ "hX"#define __UINT16_FMTo__ "ho"#define __UINT16_FMTu__ "hu"#define __UINT16_FMTx__ "hx"#define __UINT16_MAX__ 65535#define __UINT16_TYPE__ unsigned short#define __UINT32_C_SUFFIX__ U#define __UINT32_FMTX__ "X"#define __UINT32_FMTo__ "o"#define __UINT32_FMTu__ "u"#define __UINT32_FMTx__ "x"#define __UINT32_MAX__ 4294967295U#define __UINT32_TYPE__ unsigned int#define __UINT64_C_SUFFIX__ ULL#define __UINT64_FMTX__ "llX"#define __UINT64_FMTo__ "llo"#define __UINT64_FMTu__ "llu"#define __UINT64_FMTx__ "llx"#define __UINT64_MAX__ 18446744073709551615ULL#define __UINT64_TYPE__ long long unsigned int#define __UINT8_C_SUFFIX__#define __UINT8_FMTX__ "hhX"#define __UINT8_FMTo__ "hho"#define __UINT8_FMTu__ "hhu"#define __UINT8_FMTx__ "hhx"#define __UINT8_MAX__ 255#define __UINT8_TYPE__ unsigned char#define __UINTMAX_C_SUFFIX__ UL#define __UINTMAX_FMTX__ "lX"#define __UINTMAX_FMTo__ "lo"#define __UINTMAX_FMTu__ "lu"#define __UINTMAX_FMTx__ "lx"#define __UINTMAX_MAX__ 18446744073709551615UL#define __UINTMAX_TYPE__ long unsigned int#define __UINTMAX_WIDTH__ 64#define __UINTPTR_FMTX__ "lX"#define __UINTPTR_FMTo__ "lo"#define __UINTPTR_FMTu__ "lu"#define __UINTPTR_FMTx__ "lx"#define __UINTPTR_MAX__ 18446744073709551615UL#define __UINTPTR_TYPE__ long unsigned int#define __UINTPTR_WIDTH__ 64#define __UINT_FAST16_FMTX__ "hX"#define __UINT_FAST16_FMTo__ "ho"#define __UINT_FAST16_FMTu__ "hu"#define __UINT_FAST16_FMTx__ "hx"#define __UINT_FAST16_MAX__ 65535#define __UINT_FAST16_TYPE__ unsigned short#define __UINT_FAST32_FMTX__ "X"#define __UINT_FAST32_FMTo__ "o"#define __UINT_FAST32_FMTu__ "u"#define __UINT_FAST32_FMTx__ "x"#define __UINT_FAST32_MAX__ 4294967295U#define __UINT_FAST32_TYPE__ unsigned int#define __UINT_FAST64_FMTX__ "llX"#define __UINT_FAST64_FMTo__ "llo"#define __UINT_FAST64_FMTu__ "llu"#define __UINT_FAST64_FMTx__ "llx"#define __UINT_FAST64_MAX__ 18446744073709551615ULL#define __UINT_FAST64_TYPE__ long long unsigned int#define __UINT_FAST8_FMTX__ "hhX"#define __UINT_FAST8_FMTo__ "hho"#define __UINT_FAST8_FMTu__ "hhu"#define __UINT_FAST8_FMTx__ "hhx"#define __UINT_FAST8_MAX__ 255#define __UINT_FAST8_TYPE__ unsigned char#define __UINT_LEAST16_FMTX__ "hX"#define __UINT_LEAST16_FMTo__ "ho"#define __UINT_LEAST16_FMTu__ "hu"#define __UINT_LEAST16_FMTx__ "hx"#define __UINT_LEAST16_MAX__ 65535#define __UINT_LEAST16_TYPE__ unsigned short#define __UINT_LEAST32_FMTX__ "X"#define __UINT_LEAST32_FMTo__ "o"#define __UINT_LEAST32_FMTu__ "u"#define __UINT_LEAST32_FMTx__ "x"#define __UINT_LEAST32_MAX__ 4294967295U#define __UINT_LEAST32_TYPE__ unsigned int#define __UINT_LEAST64_FMTX__ "llX"#define __UINT_LEAST64_FMTo__ "llo"#define __UINT_LEAST64_FMTu__ "llu"#define __UINT_LEAST64_FMTx__ "llx"#define __UINT_LEAST64_MAX__ 18446744073709551615ULL#define __UINT_LEAST64_TYPE__ long long unsigned int#define __UINT_LEAST8_FMTX__ "hhX"#define __UINT_LEAST8_FMTo__ "hho"#define __UINT_LEAST8_FMTu__ "hhu"#define __UINT_LEAST8_FMTx__ "hhx"#define __UINT_LEAST8_MAX__ 255#define __UINT_LEAST8_TYPE__ unsigned char#define __USER_LABEL_PREFIX__ _#define __VERSION__ "Apple LLVM 13.0.0 (clang-1300.0.29.30)"#define __WCHAR_MAX__ 2147483647#define __WCHAR_TYPE__ int#define __WCHAR_WIDTH__ 32#define __WINT_MAX__ 2147483647#define __WINT_TYPE__ int#define __WINT_WIDTH__ 32#define __amd64 1#define __amd64__ 1#define __apple_build_version__ 13000029#define __block __attribute__((__blocks__(byref)))#define __clang__ 1#define __clang_major__ 13#define __clang_minor__ 0#define __clang_patchlevel__ 0#define __clang_version__ "13.0.0 (clang-1300.0.29.30)"#define __code_model_small__ 1#define __core2 1#define __core2__ 1#define __cplusplus 199711L#define __cpp_exceptions 199711L#define __cpp_impl_destroying_delete 201806L#define __cpp_rtti 199711L#define __cpp_threadsafe_static_init 200806L#define __llvm__ 1#define __nonnull _Nonnull#define __null_unspecified _Null_unspecified#define __nullable _Nullable#define __pic__ 2#define __private_extern__ extern#define __seg_fs __attribute__((address_space(257)))#define __seg_gs __attribute__((address_space(256)))#define __strong#define __tune_core2__ 1#define __unsafe_unretained#define __weak __attribute__((objc_gc(weak)))#define __x86_64 1#define __x86_64__ 1

➜ ~ gcc -dM -E -x c /dev/null#define _LP64 1#define __APPLE_CC__ 6000#define __APPLE__ 1#define __ATOMIC_ACQUIRE 2#define __ATOMIC_ACQ_REL 4#define __ATOMIC_CONSUME 1#define __ATOMIC_RELAXED 0#define __ATOMIC_RELEASE 3#define __ATOMIC_SEQ_CST 5#define __BIGGEST_ALIGNMENT__ 16#define __BLOCKS__ 1#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__#define __CHAR16_TYPE__ unsigned short#define __CHAR32_TYPE__ unsigned int#define __CHAR_BIT__ 8#define __CLANG_ATOMIC_BOOL_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR16_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR32_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR_LOCK_FREE 2#define __CLANG_ATOMIC_INT_LOCK_FREE 2#define __CLANG_ATOMIC_LLONG_LOCK_FREE 2#define __CLANG_ATOMIC_LONG_LOCK_FREE 2#define __CLANG_ATOMIC_POINTER_LOCK_FREE 2#define __CLANG_ATOMIC_SHORT_LOCK_FREE 2#define __CLANG_ATOMIC_WCHAR_T_LOCK_FREE 2#define __CONSTANT_CFSTRINGS__ 1#define __DBL_DECIMAL_DIG__ 17#define __DBL_DENORM_MIN__ 4.9406564584124654e-324#define __DBL_DIG__ 15#define __DBL_EPSILON__ 2.2204460492503131e-16#define __DBL_HAS_DENORM__ 1#define __DBL_HAS_INFINITY__ 1#define __DBL_HAS_QUIET_NAN__ 1#define __DBL_MANT_DIG__ 53#define __DBL_MAX_10_EXP__ 308#define __DBL_MAX_EXP__ 1024#define __DBL_MAX__ 1.7976931348623157e+308#define __DBL_MIN_10_EXP__ (-307)#define __DBL_MIN_EXP__ (-1021)#define __DBL_MIN__ 2.2250738585072014e-308#define __DECIMAL_DIG__ __LDBL_DECIMAL_DIG__#define __DYNAMIC__ 1#define __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 120000#define __ENVIRONMENT_OS_VERSION_MIN_REQUIRED__ 120000#define __FINITE_MATH_ONLY__ 0#define __FLT16_DECIMAL_DIG__ 5#define __FLT16_DENORM_MIN__ 5.9604644775390625e-8F16#define __FLT16_DIG__ 3#define __FLT16_EPSILON__ 9.765625e-4F16#define __FLT16_HAS_DENORM__ 1#define __FLT16_HAS_INFINITY__ 1#define __FLT16_HAS_QUIET_NAN__ 1#define __FLT16_MANT_DIG__ 11#define __FLT16_MAX_10_EXP__ 4#define __FLT16_MAX_EXP__ 16#define __FLT16_MAX__ 6.5504e+4F16#define __FLT16_MIN_10_EXP__ (-4)#define __FLT16_MIN_EXP__ (-13)#define __FLT16_MIN__ 6.103515625e-5F16#define __FLT_DECIMAL_DIG__ 9#define __FLT_DENORM_MIN__ 1.40129846e-45F#define __FLT_DIG__ 6#define __FLT_EPSILON__ 1.19209290e-7F#define __FLT_EVAL_METHOD__ 0#define __FLT_HAS_DENORM__ 1#define __FLT_HAS_INFINITY__ 1#define __FLT_HAS_QUIET_NAN__ 1#define __FLT_MANT_DIG__ 24#define __FLT_MAX_10_EXP__ 38#define __FLT_MAX_EXP__ 128#define __FLT_MAX__ 3.40282347e+38F#define __FLT_MIN_10_EXP__ (-37)#define __FLT_MIN_EXP__ (-125)#define __FLT_MIN__ 1.17549435e-38F#define __FLT_RADIX__ 2#define __FXSR__ 1#define __GCC_ASM_FLAG_OUTPUTS__ 1#define __GCC_ATOMIC_BOOL_LOCK_FREE 2#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR_LOCK_FREE 2#define __GCC_ATOMIC_INT_LOCK_FREE 2#define __GCC_ATOMIC_LLONG_LOCK_FREE 2#define __GCC_ATOMIC_LONG_LOCK_FREE 2#define __GCC_ATOMIC_POINTER_LOCK_FREE 2#define __GCC_ATOMIC_SHORT_LOCK_FREE 2#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1#define __GNUC_MINOR__ 2#define __GNUC_PATCHLEVEL__ 1#define __GNUC_STDC_INLINE__ 1#define __GNUC__ 4#define __GXX_ABI_VERSION 1002#define __INT16_C_SUFFIX__#define __INT16_FMTd__ "hd"#define __INT16_FMTi__ "hi"#define __INT16_MAX__ 32767#define __INT16_TYPE__ short#define __INT32_C_SUFFIX__#define __INT32_FMTd__ "d"#define __INT32_FMTi__ "i"#define __INT32_MAX__ 2147483647#define __INT32_TYPE__ int#define __INT64_C_SUFFIX__ LL#define __INT64_FMTd__ "lld"#define __INT64_FMTi__ "lli"#define __INT64_MAX__ 9223372036854775807LL#define __INT64_TYPE__ long long int#define __INT8_C_SUFFIX__#define __INT8_FMTd__ "hhd"#define __INT8_FMTi__ "hhi"#define __INT8_MAX__ 127#define __INT8_TYPE__ signed char#define __INTMAX_C_SUFFIX__ L#define __INTMAX_FMTd__ "ld"#define __INTMAX_FMTi__ "li"#define __INTMAX_MAX__ 9223372036854775807L#define __INTMAX_TYPE__ long int#define __INTMAX_WIDTH__ 64#define __INTPTR_FMTd__ "ld"#define __INTPTR_FMTi__ "li"#define __INTPTR_MAX__ 9223372036854775807L#define __INTPTR_TYPE__ long int#define __INTPTR_WIDTH__ 64#define __INT_FAST16_FMTd__ "hd"#define __INT_FAST16_FMTi__ "hi"#define __INT_FAST16_MAX__ 32767#define __INT_FAST16_TYPE__ short#define __INT_FAST32_FMTd__ "d"#define __INT_FAST32_FMTi__ "i"#define __INT_FAST32_MAX__ 2147483647#define __INT_FAST32_TYPE__ int#define __INT_FAST64_FMTd__ "lld"#define __INT_FAST64_FMTi__ "lli"#define __INT_FAST64_MAX__ 9223372036854775807LL#define __INT_FAST64_TYPE__ long long int#define __INT_FAST8_FMTd__ "hhd"#define __INT_FAST8_FMTi__ "hhi"#define __INT_FAST8_MAX__ 127#define __INT_FAST8_TYPE__ signed char#define __INT_LEAST16_FMTd__ "hd"#define __INT_LEAST16_FMTi__ "hi"#define __INT_LEAST16_MAX__ 32767#define __INT_LEAST16_TYPE__ short#define __INT_LEAST32_FMTd__ "d"#define __INT_LEAST32_FMTi__ "i"#define __INT_LEAST32_MAX__ 2147483647#define __INT_LEAST32_TYPE__ int#define __INT_LEAST64_FMTd__ "lld"#define __INT_LEAST64_FMTi__ "lli"#define __INT_LEAST64_MAX__ 9223372036854775807LL#define __INT_LEAST64_TYPE__ long long int#define __INT_LEAST8_FMTd__ "hhd"#define __INT_LEAST8_FMTi__ "hhi"#define __INT_LEAST8_MAX__ 127#define __INT_LEAST8_TYPE__ signed char#define __INT_MAX__ 2147483647#define __LAHF_SAHF__ 1#define __LDBL_DECIMAL_DIG__ 21#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L#define __LDBL_DIG__ 18#define __LDBL_EPSILON__ 1.08420217248550443401e-19L#define __LDBL_HAS_DENORM__ 1#define __LDBL_HAS_INFINITY__ 1#define __LDBL_HAS_QUIET_NAN__ 1#define __LDBL_MANT_DIG__ 64#define __LDBL_MAX_10_EXP__ 4932#define __LDBL_MAX_EXP__ 16384#define __LDBL_MAX__ 1.18973149535723176502e+4932L#define __LDBL_MIN_10_EXP__ (-4931)#define __LDBL_MIN_EXP__ (-16381)#define __LDBL_MIN__ 3.36210314311209350626e-4932L#define __LITTLE_ENDIAN__ 1#define __LONG_LONG_MAX__ 9223372036854775807LL#define __LONG_MAX__ 9223372036854775807L#define __LP64__ 1#define __MACH__ 1#define __MMX__ 1#define __NO_INLINE__ 1#define __NO_MATH_INLINES 1#define __OBJC_BOOL_IS_BOOL 0#define __OPENCL_MEMORY_SCOPE_ALL_SVM_DEVICES 3#define __OPENCL_MEMORY_SCOPE_DEVICE 2#define __OPENCL_MEMORY_SCOPE_SUB_GROUP 4#define __OPENCL_MEMORY_SCOPE_WORK_GROUP 1#define __OPENCL_MEMORY_SCOPE_WORK_ITEM 0#define __ORDER_BIG_ENDIAN__ 4321#define __ORDER_LITTLE_ENDIAN__ 1234#define __ORDER_PDP_ENDIAN__ 3412#define __PIC__ 2#define __POINTER_WIDTH__ 64#define __PRAGMA_REDEFINE_EXTNAME 1#define __PTRDIFF_FMTd__ "ld"#define __PTRDIFF_FMTi__ "li"#define __PTRDIFF_MAX__ 9223372036854775807L#define __PTRDIFF_TYPE__ long int#define __PTRDIFF_WIDTH__ 64#define __REGISTER_PREFIX__#define __SCHAR_MAX__ 127#define __SEG_FS 1#define __SEG_GS 1#define __SHRT_MAX__ 32767#define __SIG_ATOMIC_MAX__ 2147483647#define __SIG_ATOMIC_WIDTH__ 32#define __SIZEOF_DOUBLE__ 8#define __SIZEOF_FLOAT__ 4#define __SIZEOF_INT128__ 16#define __SIZEOF_INT__ 4#define __SIZEOF_LONG_DOUBLE__ 16#define __SIZEOF_LONG_LONG__ 8#define __SIZEOF_LONG__ 8#define __SIZEOF_POINTER__ 8#define __SIZEOF_PTRDIFF_T__ 8#define __SIZEOF_SHORT__ 2#define __SIZEOF_SIZE_T__ 8#define __SIZEOF_WCHAR_T__ 4#define __SIZEOF_WINT_T__ 4#define __SIZE_FMTX__ "lX"#define __SIZE_FMTo__ "lo"#define __SIZE_FMTu__ "lu"#define __SIZE_FMTx__ "lx"#define __SIZE_MAX__ 18446744073709551615UL#define __SIZE_TYPE__ long unsigned int#define __SIZE_WIDTH__ 64#define __SSE2_MATH__ 1#define __SSE2__ 1#define __SSE3__ 1#define __SSE4_1__ 1#define __SSE_MATH__ 1#define __SSE__ 1#define __SSP__ 1#define __SSSE3__ 1#define __STDC_HOSTED__ 1#define __STDC_NO_THREADS__ 1#define __STDC_UTF_16__ 1#define __STDC_UTF_32__ 1#define __STDC_VERSION__ 201710L#define __STDC__ 1#define __UINT16_C_SUFFIX__#define __UINT16_FMTX__ "hX"#define __UINT16_FMTo__ "ho"#define __UINT16_FMTu__ "hu"#define __UINT16_FMTx__ "hx"#define __UINT16_MAX__ 65535#define __UINT16_TYPE__ unsigned short#define __UINT32_C_SUFFIX__ U#define __UINT32_FMTX__ "X"#define __UINT32_FMTo__ "o"#define __UINT32_FMTu__ "u"#define __UINT32_FMTx__ "x"#define __UINT32_MAX__ 4294967295U#define __UINT32_TYPE__ unsigned int#define __UINT64_C_SUFFIX__ ULL#define __UINT64_FMTX__ "llX"#define __UINT64_FMTo__ "llo"#define __UINT64_FMTu__ "llu"#define __UINT64_FMTx__ "llx"#define __UINT64_MAX__ 18446744073709551615ULL#define __UINT64_TYPE__ long long unsigned int#define __UINT8_C_SUFFIX__#define __UINT8_FMTX__ "hhX"#define __UINT8_FMTo__ "hho"#define __UINT8_FMTu__ "hhu"#define __UINT8_FMTx__ "hhx"#define __UINT8_MAX__ 255#define __UINT8_TYPE__ unsigned char#define __UINTMAX_C_SUFFIX__ UL#define __UINTMAX_FMTX__ "lX"#define __UINTMAX_FMTo__ "lo"#define __UINTMAX_FMTu__ "lu"#define __UINTMAX_FMTx__ "lx"#define __UINTMAX_MAX__ 18446744073709551615UL#define __UINTMAX_TYPE__ long unsigned int#define __UINTMAX_WIDTH__ 64#define __UINTPTR_FMTX__ "lX"#define __UINTPTR_FMTo__ "lo"#define __UINTPTR_FMTu__ "lu"#define __UINTPTR_FMTx__ "lx"#define __UINTPTR_MAX__ 18446744073709551615UL#define __UINTPTR_TYPE__ long unsigned int#define __UINTPTR_WIDTH__ 64#define __UINT_FAST16_FMTX__ "hX"#define __UINT_FAST16_FMTo__ "ho"#define __UINT_FAST16_FMTu__ "hu"#define __UINT_FAST16_FMTx__ "hx"#define __UINT_FAST16_MAX__ 65535#define __UINT_FAST16_TYPE__ unsigned short#define __UINT_FAST32_FMTX__ "X"#define __UINT_FAST32_FMTo__ "o"#define __UINT_FAST32_FMTu__ "u"#define __UINT_FAST32_FMTx__ "x"#define __UINT_FAST32_MAX__ 4294967295U#define __UINT_FAST32_TYPE__ unsigned int#define __UINT_FAST64_FMTX__ "llX"#define __UINT_FAST64_FMTo__ "llo"#define __UINT_FAST64_FMTu__ "llu"#define __UINT_FAST64_FMTx__ "llx"#define __UINT_FAST64_MAX__ 18446744073709551615ULL#define __UINT_FAST64_TYPE__ long long unsigned int#define __UINT_FAST8_FMTX__ "hhX"#define __UINT_FAST8_FMTo__ "hho"#define __UINT_FAST8_FMTu__ "hhu"#define __UINT_FAST8_FMTx__ "hhx"#define __UINT_FAST8_MAX__ 255#define __UINT_FAST8_TYPE__ unsigned char#define __UINT_LEAST16_FMTX__ "hX"#define __UINT_LEAST16_FMTo__ "ho"#define __UINT_LEAST16_FMTu__ "hu"#define __UINT_LEAST16_FMTx__ "hx"#define __UINT_LEAST16_MAX__ 65535#define __UINT_LEAST16_TYPE__ unsigned short#define __UINT_LEAST32_FMTX__ "X"#define __UINT_LEAST32_FMTo__ "o"#define __UINT_LEAST32_FMTu__ "u"#define __UINT_LEAST32_FMTx__ "x"#define __UINT_LEAST32_MAX__ 4294967295U#define __UINT_LEAST32_TYPE__ unsigned int#define __UINT_LEAST64_FMTX__ "llX"#define __UINT_LEAST64_FMTo__ "llo"#define __UINT_LEAST64_FMTu__ "llu"#define __UINT_LEAST64_FMTx__ "llx"#define __UINT_LEAST64_MAX__ 18446744073709551615ULL#define __UINT_LEAST64_TYPE__ long long unsigned int#define __UINT_LEAST8_FMTX__ "hhX"#define __UINT_LEAST8_FMTo__ "hho"#define __UINT_LEAST8_FMTu__ "hhu"#define __UINT_LEAST8_FMTx__ "hhx"#define __UINT_LEAST8_MAX__ 255#define __UINT_LEAST8_TYPE__ unsigned char#define __USER_LABEL_PREFIX__ _#define __VERSION__ "Apple LLVM 13.0.0 (clang-1300.0.29.30)"#define __WCHAR_MAX__ 2147483647#define __WCHAR_TYPE__ int#define __WCHAR_WIDTH__ 32#define __WINT_MAX__ 2147483647#define __WINT_TYPE__ int#define __WINT_WIDTH__ 32#define __amd64 1#define __amd64__ 1#define __apple_build_version__ 13000029#define __block __attribute__((__blocks__(byref)))#define __clang__ 1#define __clang_major__ 13#define __clang_minor__ 0#define __clang_patchlevel__ 0#define __clang_version__ "13.0.0 (clang-1300.0.29.30)"#define __code_model_small__ 1#define __core2 1#define __core2__ 1#define __llvm__ 1#define __nonnull _Nonnull#define __null_unspecified _Null_unspecified#define __nullable _Nullable#define __pic__ 2#define __seg_fs __attribute__((address_space(257)))#define __seg_gs __attribute__((address_space(256)))#define __strong#define __tune_core2__ 1#define __unsafe_unretained#define __weak __attribute__((objc_gc(weak)))#define __x86_64 1#define __x86_64__ 1

➜ ~ g++ -dM -E -x c++ /dev/null#define _LP64 1#define __APPLE_CC__ 6000#define __APPLE__ 1#define __ATOMIC_ACQUIRE 2#define __ATOMIC_ACQ_REL 4#define __ATOMIC_CONSUME 1#define __ATOMIC_RELAXED 0#define __ATOMIC_RELEASE 3#define __ATOMIC_SEQ_CST 5#define __BIGGEST_ALIGNMENT__ 16#define __BLOCKS__ 1#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__#define __CHAR16_TYPE__ unsigned short#define __CHAR32_TYPE__ unsigned int#define __CHAR_BIT__ 8#define __CLANG_ATOMIC_BOOL_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR16_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR32_T_LOCK_FREE 2#define __CLANG_ATOMIC_CHAR_LOCK_FREE 2#define __CLANG_ATOMIC_INT_LOCK_FREE 2#define __CLANG_ATOMIC_LLONG_LOCK_FREE 2#define __CLANG_ATOMIC_LONG_LOCK_FREE 2#define __CLANG_ATOMIC_POINTER_LOCK_FREE 2#define __CLANG_ATOMIC_SHORT_LOCK_FREE 2#define __CLANG_ATOMIC_WCHAR_T_LOCK_FREE 2#define __CONSTANT_CFSTRINGS__ 1#define __DBL_DECIMAL_DIG__ 17#define __DBL_DENORM_MIN__ 4.9406564584124654e-324#define __DBL_DIG__ 15#define __DBL_EPSILON__ 2.2204460492503131e-16#define __DBL_HAS_DENORM__ 1#define __DBL_HAS_INFINITY__ 1#define __DBL_HAS_QUIET_NAN__ 1#define __DBL_MANT_DIG__ 53#define __DBL_MAX_10_EXP__ 308#define __DBL_MAX_EXP__ 1024#define __DBL_MAX__ 1.7976931348623157e+308#define __DBL_MIN_10_EXP__ (-307)#define __DBL_MIN_EXP__ (-1021)#define __DBL_MIN__ 2.2250738585072014e-308#define __DECIMAL_DIG__ __LDBL_DECIMAL_DIG__#define __DEPRECATED 1#define __DYNAMIC__ 1#define __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 120000#define __ENVIRONMENT_OS_VERSION_MIN_REQUIRED__ 120000#define __EXCEPTIONS 1#define __FINITE_MATH_ONLY__ 0#define __FLT16_DECIMAL_DIG__ 5#define __FLT16_DENORM_MIN__ 5.9604644775390625e-8F16#define __FLT16_DIG__ 3#define __FLT16_EPSILON__ 9.765625e-4F16#define __FLT16_HAS_DENORM__ 1#define __FLT16_HAS_INFINITY__ 1#define __FLT16_HAS_QUIET_NAN__ 1#define __FLT16_MANT_DIG__ 11#define __FLT16_MAX_10_EXP__ 4#define __FLT16_MAX_EXP__ 16#define __FLT16_MAX__ 6.5504e+4F16#define __FLT16_MIN_10_EXP__ (-4)#define __FLT16_MIN_EXP__ (-13)#define __FLT16_MIN__ 6.103515625e-5F16#define __FLT_DECIMAL_DIG__ 9#define __FLT_DENORM_MIN__ 1.40129846e-45F#define __FLT_DIG__ 6#define __FLT_EPSILON__ 1.19209290e-7F#define __FLT_EVAL_METHOD__ 0#define __FLT_HAS_DENORM__ 1#define __FLT_HAS_INFINITY__ 1#define __FLT_HAS_QUIET_NAN__ 1#define __FLT_MANT_DIG__ 24#define __FLT_MAX_10_EXP__ 38#define __FLT_MAX_EXP__ 128#define __FLT_MAX__ 3.40282347e+38F#define __FLT_MIN_10_EXP__ (-37)#define __FLT_MIN_EXP__ (-125)#define __FLT_MIN__ 1.17549435e-38F#define __FLT_RADIX__ 2#define __FXSR__ 1#define __GCC_ASM_FLAG_OUTPUTS__ 1#define __GCC_ATOMIC_BOOL_LOCK_FREE 2#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2#define __GCC_ATOMIC_CHAR_LOCK_FREE 2#define __GCC_ATOMIC_INT_LOCK_FREE 2#define __GCC_ATOMIC_LLONG_LOCK_FREE 2#define __GCC_ATOMIC_LONG_LOCK_FREE 2#define __GCC_ATOMIC_POINTER_LOCK_FREE 2#define __GCC_ATOMIC_SHORT_LOCK_FREE 2#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1#define __GLIBCXX_BITSIZE_INT_N_0 128#define __GLIBCXX_TYPE_INT_N_0 __int128#define __GNUC_GNU_INLINE__ 1#define __GNUC_MINOR__ 2#define __GNUC_PATCHLEVEL__ 1#define __GNUC__ 4#define __GNUG__ 4#define __GXX_ABI_VERSION 1002#define __GXX_RTTI 1#define __GXX_WEAK__ 1#define __INT16_C_SUFFIX__#define __INT16_FMTd__ "hd"#define __INT16_FMTi__ "hi"#define __INT16_MAX__ 32767#define __INT16_TYPE__ short#define __INT32_C_SUFFIX__#define __INT32_FMTd__ "d"#define __INT32_FMTi__ "i"#define __INT32_MAX__ 2147483647#define __INT32_TYPE__ int#define __INT64_C_SUFFIX__ LL#define __INT64_FMTd__ "lld"#define __INT64_FMTi__ "lli"#define __INT64_MAX__ 9223372036854775807LL#define __INT64_TYPE__ long long int#define __INT8_C_SUFFIX__#define __INT8_FMTd__ "hhd"#define __INT8_FMTi__ "hhi"#define __INT8_MAX__ 127#define __INT8_TYPE__ signed char#define __INTMAX_C_SUFFIX__ L#define __INTMAX_FMTd__ "ld"#define __INTMAX_FMTi__ "li"#define __INTMAX_MAX__ 9223372036854775807L#define __INTMAX_TYPE__ long int#define __INTMAX_WIDTH__ 64#define __INTPTR_FMTd__ "ld"#define __INTPTR_FMTi__ "li"#define __INTPTR_MAX__ 9223372036854775807L#define __INTPTR_TYPE__ long int#define __INTPTR_WIDTH__ 64#define __INT_FAST16_FMTd__ "hd"#define __INT_FAST16_FMTi__ "hi"#define __INT_FAST16_MAX__ 32767#define __INT_FAST16_TYPE__ short#define __INT_FAST32_FMTd__ "d"#define __INT_FAST32_FMTi__ "i"#define __INT_FAST32_MAX__ 2147483647#define __INT_FAST32_TYPE__ int#define __INT_FAST64_FMTd__ "lld"#define __INT_FAST64_FMTi__ "lli"#define __INT_FAST64_MAX__ 9223372036854775807LL#define __INT_FAST64_TYPE__ long long int#define __INT_FAST8_FMTd__ "hhd"#define __INT_FAST8_FMTi__ "hhi"#define __INT_FAST8_MAX__ 127#define __INT_FAST8_TYPE__ signed char#define __INT_LEAST16_FMTd__ "hd"#define __INT_LEAST16_FMTi__ "hi"#define __INT_LEAST16_MAX__ 32767#define __INT_LEAST16_TYPE__ short#define __INT_LEAST32_FMTd__ "d"#define __INT_LEAST32_FMTi__ "i"#define __INT_LEAST32_MAX__ 2147483647#define __INT_LEAST32_TYPE__ int#define __INT_LEAST64_FMTd__ "lld"#define __INT_LEAST64_FMTi__ "lli"#define __INT_LEAST64_MAX__ 9223372036854775807LL#define __INT_LEAST64_TYPE__ long long int#define __INT_LEAST8_FMTd__ "hhd"#define __INT_LEAST8_FMTi__ "hhi"#define __INT_LEAST8_MAX__ 127#define __INT_LEAST8_TYPE__ signed char#define __INT_MAX__ 2147483647#define __LAHF_SAHF__ 1#define __LDBL_DECIMAL_DIG__ 21#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L#define __LDBL_DIG__ 18#define __LDBL_EPSILON__ 1.08420217248550443401e-19L#define __LDBL_HAS_DENORM__ 1#define __LDBL_HAS_INFINITY__ 1#define __LDBL_HAS_QUIET_NAN__ 1#define __LDBL_MANT_DIG__ 64#define __LDBL_MAX_10_EXP__ 4932#define __LDBL_MAX_EXP__ 16384#define __LDBL_MAX__ 1.18973149535723176502e+4932L#define __LDBL_MIN_10_EXP__ (-4931)#define __LDBL_MIN_EXP__ (-16381)#define __LDBL_MIN__ 3.36210314311209350626e-4932L#define __LITTLE_ENDIAN__ 1#define __LONG_LONG_MAX__ 9223372036854775807LL#define __LONG_MAX__ 9223372036854775807L#define __LP64__ 1#define __MACH__ 1#define __MMX__ 1#define __NO_INLINE__ 1#define __NO_MATH_INLINES 1#define __OBJC_BOOL_IS_BOOL 0#define __OPENCL_MEMORY_SCOPE_ALL_SVM_DEVICES 3#define __OPENCL_MEMORY_SCOPE_DEVICE 2#define __OPENCL_MEMORY_SCOPE_SUB_GROUP 4#define __OPENCL_MEMORY_SCOPE_WORK_GROUP 1#define __OPENCL_MEMORY_SCOPE_WORK_ITEM 0#define __ORDER_BIG_ENDIAN__ 4321#define __ORDER_LITTLE_ENDIAN__ 1234#define __ORDER_PDP_ENDIAN__ 3412#define __PIC__ 2#define __POINTER_WIDTH__ 64#define __PRAGMA_REDEFINE_EXTNAME 1#define __PTRDIFF_FMTd__ "ld"#define __PTRDIFF_FMTi__ "li"#define __PTRDIFF_MAX__ 9223372036854775807L#define __PTRDIFF_TYPE__ long int#define __PTRDIFF_WIDTH__ 64#define __REGISTER_PREFIX__#define __SCHAR_MAX__ 127#define __SEG_FS 1#define __SEG_GS 1#define __SHRT_MAX__ 32767#define __SIG_ATOMIC_MAX__ 2147483647#define __SIG_ATOMIC_WIDTH__ 32#define __SIZEOF_DOUBLE__ 8#define __SIZEOF_FLOAT__ 4#define __SIZEOF_INT128__ 16#define __SIZEOF_INT__ 4#define __SIZEOF_LONG_DOUBLE__ 16#define __SIZEOF_LONG_LONG__ 8#define __SIZEOF_LONG__ 8#define __SIZEOF_POINTER__ 8#define __SIZEOF_PTRDIFF_T__ 8#define __SIZEOF_SHORT__ 2#define __SIZEOF_SIZE_T__ 8#define __SIZEOF_WCHAR_T__ 4#define __SIZEOF_WINT_T__ 4#define __SIZE_FMTX__ "lX"#define __SIZE_FMTo__ "lo"#define __SIZE_FMTu__ "lu"#define __SIZE_FMTx__ "lx"#define __SIZE_MAX__ 18446744073709551615UL#define __SIZE_TYPE__ long unsigned int#define __SIZE_WIDTH__ 64#define __SSE2_MATH__ 1#define __SSE2__ 1#define __SSE3__ 1#define __SSE4_1__ 1#define __SSE_MATH__ 1#define __SSE__ 1#define __SSP__ 1#define __SSSE3__ 1#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 16UL#define __STDCPP_THREADS__ 1#define __STDC_HOSTED__ 1#define __STDC_NO_THREADS__ 1#define __STDC_UTF_16__ 1#define __STDC_UTF_32__ 1#define __STDC__ 1#define __UINT16_C_SUFFIX__#define __UINT16_FMTX__ "hX"#define __UINT16_FMTo__ "ho"#define __UINT16_FMTu__ "hu"#define __UINT16_FMTx__ "hx"#define __UINT16_MAX__ 65535#define __UINT16_TYPE__ unsigned short#define __UINT32_C_SUFFIX__ U#define __UINT32_FMTX__ "X"#define __UINT32_FMTo__ "o"#define __UINT32_FMTu__ "u"#define __UINT32_FMTx__ "x"#define __UINT32_MAX__ 4294967295U#define __UINT32_TYPE__ unsigned int#define __UINT64_C_SUFFIX__ ULL#define __UINT64_FMTX__ "llX"#define __UINT64_FMTo__ "llo"#define __UINT64_FMTu__ "llu"#define __UINT64_FMTx__ "llx"#define __UINT64_MAX__ 18446744073709551615ULL#define __UINT64_TYPE__ long long unsigned int#define __UINT8_C_SUFFIX__#define __UINT8_FMTX__ "hhX"#define __UINT8_FMTo__ "hho"#define __UINT8_FMTu__ "hhu"#define __UINT8_FMTx__ "hhx"#define __UINT8_MAX__ 255#define __UINT8_TYPE__ unsigned char#define __UINTMAX_C_SUFFIX__ UL#define __UINTMAX_FMTX__ "lX"#define __UINTMAX_FMTo__ "lo"#define __UINTMAX_FMTu__ "lu"#define __UINTMAX_FMTx__ "lx"#define __UINTMAX_MAX__ 18446744073709551615UL#define __UINTMAX_TYPE__ long unsigned int#define __UINTMAX_WIDTH__ 64#define __UINTPTR_FMTX__ "lX"#define __UINTPTR_FMTo__ "lo"#define __UINTPTR_FMTu__ "lu"#define __UINTPTR_FMTx__ "lx"#define __UINTPTR_MAX__ 18446744073709551615UL#define __UINTPTR_TYPE__ long unsigned int#define __UINTPTR_WIDTH__ 64#define __UINT_FAST16_FMTX__ "hX"#define __UINT_FAST16_FMTo__ "ho"#define __UINT_FAST16_FMTu__ "hu"#define __UINT_FAST16_FMTx__ "hx"#define __UINT_FAST16_MAX__ 65535#define __UINT_FAST16_TYPE__ unsigned short#define __UINT_FAST32_FMTX__ "X"#define __UINT_FAST32_FMTo__ "o"#define __UINT_FAST32_FMTu__ "u"#define __UINT_FAST32_FMTx__ "x"#define __UINT_FAST32_MAX__ 4294967295U#define __UINT_FAST32_TYPE__ unsigned int#define __UINT_FAST64_FMTX__ "llX"#define __UINT_FAST64_FMTo__ "llo"#define __UINT_FAST64_FMTu__ "llu"#define __UINT_FAST64_FMTx__ "llx"#define __UINT_FAST64_MAX__ 18446744073709551615ULL#define __UINT_FAST64_TYPE__ long long unsigned int#define __UINT_FAST8_FMTX__ "hhX"#define __UINT_FAST8_FMTo__ "hho"#define __UINT_FAST8_FMTu__ "hhu"#define __UINT_FAST8_FMTx__ "hhx"#define __UINT_FAST8_MAX__ 255#define __UINT_FAST8_TYPE__ unsigned char#define __UINT_LEAST16_FMTX__ "hX"#define __UINT_LEAST16_FMTo__ "ho"#define __UINT_LEAST16_FMTu__ "hu"#define __UINT_LEAST16_FMTx__ "hx"#define __UINT_LEAST16_MAX__ 65535#define __UINT_LEAST16_TYPE__ unsigned short#define __UINT_LEAST32_FMTX__ "X"#define __UINT_LEAST32_FMTo__ "o"#define __UINT_LEAST32_FMTu__ "u"#define __UINT_LEAST32_FMTx__ "x"#define __UINT_LEAST32_MAX__ 4294967295U#define __UINT_LEAST32_TYPE__ unsigned int#define __UINT_LEAST64_FMTX__ "llX"#define __UINT_LEAST64_FMTo__ "llo"#define __UINT_LEAST64_FMTu__ "llu"#define __UINT_LEAST64_FMTx__ "llx"#define __UINT_LEAST64_MAX__ 18446744073709551615ULL#define __UINT_LEAST64_TYPE__ long long unsigned int#define __UINT_LEAST8_FMTX__ "hhX"#define __UINT_LEAST8_FMTo__ "hho"#define __UINT_LEAST8_FMTu__ "hhu"#define __UINT_LEAST8_FMTx__ "hhx"#define __UINT_LEAST8_MAX__ 255#define __UINT_LEAST8_TYPE__ unsigned char#define __USER_LABEL_PREFIX__ _#define __VERSION__ "Apple LLVM 13.0.0 (clang-1300.0.29.30)"#define __WCHAR_MAX__ 2147483647#define __WCHAR_TYPE__ int#define __WCHAR_WIDTH__ 32#define __WINT_MAX__ 2147483647#define __WINT_TYPE__ int#define __WINT_WIDTH__ 32#define __amd64 1#define __amd64__ 1#define __apple_build_version__ 13000029#define __block __attribute__((__blocks__(byref)))#define __clang__ 1#define __clang_major__ 13#define __clang_minor__ 0#define __clang_patchlevel__ 0#define __clang_version__ "13.0.0 (clang-1300.0.29.30)"#define __code_model_small__ 1#define __core2 1#define __core2__ 1#define __cplusplus 199711L#define __cpp_exceptions 199711L#define __cpp_impl_destroying_delete 201806L#define __cpp_rtti 199711L#define __cpp_threadsafe_static_init 200806L#define __llvm__ 1#define __nonnull _Nonnull#define __null_unspecified _Null_unspecified#define __nullable _Nullable#define __pic__ 2#define __private_extern__ extern#define __seg_fs __attribute__((address_space(257)))#define __seg_gs __attribute__((address_space(256)))#define __strong#define __tune_core2__ 1#define __unsafe_unretained#define __weak __attribute__((objc_gc(weak)))#define __x86_64 1#define __x86_64__ 1