打印方法：
touch test.c
gcc -E -dM -c test.c >> marco_x86_64.txt
#define __DBL_MIN_EXP__ (-1021) #define __UINT_LEAST16_MAX__ 65535 #define __ATOMIC_ACQUIRE 2 #define __FLT_MIN__ 1.17549435082228750797e-38F #define __UINT_LEAST8_TYPE__ unsigned char #define __INTMAX_C(c) c ## L #define __CHAR_BIT__ 8 #define __UINT8_MAX__ 255 #define __WINT_MAX__ 4294967295U #define __ORDER_LITTLE_ENDIAN__ 1234 #define __SIZE_MAX__ 18446744073709551615UL #define __WCHAR_MAX__ 2147483647 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1 #define __DBL_DENORM_MIN__ ((double)4.94065645841246544177e-324L) #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1 #define __GCC_ATOMIC_CHAR_LOCK_FREE 2 #define __FLT_EVAL_METHOD__ 0 #define __unix__ 1 #define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2 #define __x86_64 1 #define __UINT_FAST64_MAX__ 18446744073709551615UL #define __SIG_ATOMIC_TYPE__ int #define __DBL_MIN_10_EXP__ (-307) #define __FINITE_MATH_ONLY__ 0 #define __GNUC_PATCHLEVEL__ 4 #define __UINT_FAST8_MAX__ 255 #define __DEC64_MAX_EXP__ 385 #define __INT8_C(c) c #define __UINT_LEAST64_MAX__ 18446744073709551615UL #define __SHRT_MAX__ 32767 #define __LDBL_MAX__ 1.18973149535723176502e+4932L #define __UINT_LEAST8_MAX__ 255 #define __GCC_ATOMIC_BOOL_LOCK_FREE 2 #define __UINTMAX_TYPE__ long unsigned int #define __linux 1 #define __DEC32_EPSILON__ 1E-6DF #define __unix 1 #define __UINT32_MAX__ 4294967295U #define __LDBL_MAX_EXP__ 16384 #define __WINT_MIN__ 0U #define __linux__ 1 #define __SCHAR_MAX__ 127 #define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1) #define __INT64_C(c) c ## L #define __DBL_DIG__ 15 #define __GCC_ATOMIC_POINTER_LOCK_FREE 2 #define __SIZEOF_INT__ 4 #define __SIZEOF_POINTER__ 8 #define __USER_LABEL_PREFIX__ #define __STDC_HOSTED__ 1 #define __LDBL_HAS_INFINITY__ 1 #define __FLT_EPSILON__ 1.19209289550781250000e-7F #define __LDBL_MIN__ 3.36210314311209350626e-4932L #define __DEC32_MAX__ 9.999999E96DF #define __INT32_MAX__ 2147483647 #define __SIZEOF_LONG__ 8 #define __STDC_IEC_559__ 1 #define __STDC_ISO_10646__ 201103L #define __UINT16_C(c) c #define __DECIMAL_DIG__ 21 #define __gnu_linux__ 1 #define __LDBL_HAS_QUIET_NAN__ 1 #define __GNUC__ 4 #define __MMX__ 1 #define __FLT_HAS_DENORM__ 1 #define __SIZEOF_LONG_DOUBLE__ 16 #define __BIGGEST_ALIGNMENT__ 16 #define __DBL_MAX__ ((double)1.79769313486231570815e+308L) #define __INT_FAST32_MAX__ 9223372036854775807L #define __DBL_HAS_INFINITY__ 1 #define __DEC32_MIN_EXP__ (-94) #define __INT_FAST16_TYPE__ long int #define __LDBL_HAS_DENORM__ 1 #define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL #define __INT_LEAST32_MAX__ 2147483647 #define __DEC32_MIN__ 1E-95DF #define __DBL_MAX_EXP__ 1024 #define __DEC128_EPSILON__ 1E-33DL #define __SSE2_MATH__ 1 #define __ATOMIC_HLE_RELEASE 131072 #define __PTRDIFF_MAX__ 9223372036854775807L #define __amd64 1 #define __STDC_NO_THREADS__ 1 #define __ATOMIC_HLE_ACQUIRE 65536 #define __LONG_LONG_MAX__ 9223372036854775807LL #define __SIZEOF_SIZE_T__ 8 #define __SIZEOF_WINT_T__ 4 #define __GCC_HAVE_DWARF2_CFI_ASM 1 #define __GXX_ABI_VERSION 1002 #define __FLT_MIN_EXP__ (-125) #define __INT_FAST64_TYPE__ long int #define __DBL_MIN__ ((double)2.22507385850720138309e-308L) #define __LP64__ 1 #define __DECIMAL_BID_FORMAT__ 1 #define __DEC128_MIN__ 1E-6143DL #define __REGISTER_PREFIX__ #define __UINT16_MAX__ 65535 #define __DBL_HAS_DENORM__ 1 #define __UINT8_TYPE__ unsigned char #define __NO_INLINE__ 1 #define __FLT_MANT_DIG__ 24 #define __VERSION__ "4.8.4" #define __UINT64_C(c) c ## UL #define _STDC_PREDEF_H 1 #define __GCC_ATOMIC_INT_LOCK_FREE 2 #define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__ #define __STDC_IEC_559_COMPLEX__ 1 #define __INT32_C(c) c #define __DEC64_EPSILON__ 1E-15DD #define __ORDER_PDP_ENDIAN__ 3412 #define __DEC128_MIN_EXP__ (-6142) #define __INT_FAST32_TYPE__ long int #define __UINT_LEAST16_TYPE__ short unsigned int #define unix 1 #define __INT16_MAX__ 32767 #define __SIZE_TYPE__ long unsigned int #define __UINT64_MAX__ 18446744073709551615UL #define __INT8_TYPE__ signed char #define __ELF__ 1 #define __FLT_RADIX__ 2 #define __INT_LEAST16_TYPE__ short int #define __LDBL_EPSILON__ 1.08420217248550443401e-19L #define __UINTMAX_C(c) c ## UL #define __SSE_MATH__ 1 #define __k8 1 #define __SIG_ATOMIC_MAX__ 2147483647 #define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2 #define __SIZEOF_PTRDIFF_T__ 8 #define __x86_64__ 1 #define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF #define __INT_FAST16_MAX__ 9223372036854775807L #define __UINT_FAST32_MAX__ 18446744073709551615UL #define __UINT_LEAST64_TYPE__ long unsigned int #define __FLT_HAS_QUIET_NAN__ 1 #define __FLT_MAX_10_EXP__ 38 #define __LONG_MAX__ 9223372036854775807L #define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL #define __FLT_HAS_INFINITY__ 1 #define __UINT_FAST16_TYPE__ long unsigned int #define __DEC64_MAX__ 9.999999999999999E384DD #define __CHAR16_TYPE__ short unsigned int #define __PRAGMA_REDEFINE_EXTNAME 1 #define __INT_LEAST16_MAX__ 32767 #define __DEC64_MANT_DIG__ 16 #define __INT64_MAX__ 9223372036854775807L #define __UINT_LEAST32_MAX__ 4294967295U #define __GCC_ATOMIC_LONG_LOCK_FREE 2 #define __INT_LEAST64_TYPE__ long int #define __INT16_TYPE__ short int #define __INT_LEAST8_TYPE__ signed char #define __DEC32_MAX_EXP__ 97 #define __INT_FAST8_MAX__ 127 #define __INTPTR_MAX__ 9223372036854775807L #define linux 1 #define __SSE2__ 1 #define __LDBL_MANT_DIG__ 64 #define __DBL_HAS_QUIET_NAN__ 1 #define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1) #define __code_model_small__ 1 #define __k8__ 1 #define __INTPTR_TYPE__ long int #define __UINT16_TYPE__ short unsigned int #define __WCHAR_TYPE__ int #define __SIZEOF_FLOAT__ 4 #define __UINTPTR_MAX__ 18446744073709551615UL #define __DEC64_MIN_EXP__ (-382) #define __INT_FAST64_MAX__ 9223372036854775807L #define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1 #define __FLT_DIG__ 6 #define __UINT_FAST64_TYPE__ long unsigned int #define __INT_MAX__ 2147483647 #define __amd64__ 1 #define __INT64_TYPE__ long int #define __FLT_MAX_EXP__ 128 #define __ORDER_BIG_ENDIAN__ 4321 #define __DBL_MANT_DIG__ 53 #define __INT_LEAST64_MAX__ 9223372036854775807L #define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2 #define __DEC64_MIN__ 1E-383DD #define __WINT_TYPE__ unsigned int #define __UINT_LEAST32_TYPE__ unsigned int #define __SIZEOF_SHORT__ 2 #define __SSE__ 1 #define __LDBL_MIN_EXP__ (-16381) #define __INT_LEAST8_MAX__ 127 #define __SSP__ 1 #define __SIZEOF_INT128__ 16 #define __LDBL_MAX_10_EXP__ 4932 #define __ATOMIC_RELAXED 0 #define __DBL_EPSILON__ ((double)2.22044604925031308085e-16L) #define _LP64 1 #define __UINT8_C(c) c #define __INT_LEAST32_TYPE__ int #define __SIZEOF_WCHAR_T__ 4 #define __UINT64_TYPE__ long unsigned int #define __INT_FAST8_TYPE__ signed char #define __DBL_DECIMAL_DIG__ 17 #define __FXSR__ 1 #define __DEC_EVAL_METHOD__ 2 #define __UINT32_C(c) c ## U #define __INTMAX_MAX__ 9223372036854775807L #define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__ #define __FLT_DENORM_MIN__ 1.40129846432481707092e-45F #define __INT8_MAX__ 127 #define __UINT_FAST32_TYPE__ long unsigned int #define __CHAR32_TYPE__ unsigned int #define __FLT_MAX__ 3.40282346638528859812e+38F #define __INT32_TYPE__ int #define __SIZEOF_DOUBLE__ 8 #define __FLT_MIN_10_EXP__ (-37) #define __INTMAX_TYPE__ long int #define __DEC128_MAX_EXP__ 6145 #define __ATOMIC_CONSUME 1 #define __GNUC_MINOR__ 8 #define __UINTMAX_MAX__ 18446744073709551615UL #define __DEC32_MANT_DIG__ 7 #define __DBL_MAX_10_EXP__ 308 #define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L #define __INT16_C(c) c #define __STDC__ 1 #define __PTRDIFF_TYPE__ long int #define __ATOMIC_SEQ_CST 5 #define __UINT32_TYPE__ unsigned int #define __UINTPTR_TYPE__ long unsigned int #define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD #define __DEC128_MANT_DIG__ 34 #define __LDBL_MIN_10_EXP__ (-4931) #define __SIZEOF_LONG_LONG__ 8 #define __GCC_ATOMIC_LLONG_LOCK_FREE 2 #define __LDBL_DIG__ 18 #define __FLT_DECIMAL_DIG__ 9 #define __UINT_FAST16_MAX__ 18446744073709551615UL #define __GNUC_GNU_INLINE__ 1 #define __GCC_ATOMIC_SHORT_LOCK_FREE 2 #define __UINT_FAST8_TYPE__ unsigned char #define __ATOMIC_ACQ_REL 4 #define __ATOMIC_RELEASE 3