晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_
#define NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_

/*
 * NPY_BYTE_ORDER is set to the same value as BYTE_ORDER set by glibc in
 * endian.h
 */

#if defined(NPY_HAVE_ENDIAN_H) || defined(NPY_HAVE_SYS_ENDIAN_H)
    /* Use endian.h if available */

    #if defined(NPY_HAVE_ENDIAN_H)
    #include <endian.h>
    #elif defined(NPY_HAVE_SYS_ENDIAN_H)
    #include <sys/endian.h>
    #endif

    #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN)
        #define NPY_BYTE_ORDER    BYTE_ORDER
        #define NPY_LITTLE_ENDIAN LITTLE_ENDIAN
        #define NPY_BIG_ENDIAN    BIG_ENDIAN
    #elif defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && defined(_LITTLE_ENDIAN)
        #define NPY_BYTE_ORDER    _BYTE_ORDER
        #define NPY_LITTLE_ENDIAN _LITTLE_ENDIAN
        #define NPY_BIG_ENDIAN    _BIG_ENDIAN
    #elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN)
        #define NPY_BYTE_ORDER    __BYTE_ORDER
        #define NPY_LITTLE_ENDIAN __LITTLE_ENDIAN
        #define NPY_BIG_ENDIAN    __BIG_ENDIAN
    #endif
#endif

#ifndef NPY_BYTE_ORDER
    /* Set endianness info using target CPU */
    #include "npy_cpu.h"

    #define NPY_LITTLE_ENDIAN 1234
    #define NPY_BIG_ENDIAN 4321

    #if defined(NPY_CPU_X86)                  \
            || defined(NPY_CPU_AMD64)         \
            || defined(NPY_CPU_IA64)          \
            || defined(NPY_CPU_ALPHA)         \
            || defined(NPY_CPU_ARMEL)         \
            || defined(NPY_CPU_ARMEL_AARCH32) \
            || defined(NPY_CPU_ARMEL_AARCH64) \
            || defined(NPY_CPU_SH_LE)         \
            || defined(NPY_CPU_MIPSEL)        \
            || defined(NPY_CPU_PPC64LE)       \
            || defined(NPY_CPU_ARCEL)         \
            || defined(NPY_CPU_RISCV64)       \
            || defined(NPY_CPU_LOONGARCH)     \
            || defined(NPY_CPU_WASM)
        #define NPY_BYTE_ORDER NPY_LITTLE_ENDIAN

    #elif defined(NPY_CPU_PPC)                \
            || defined(NPY_CPU_SPARC)         \
            || defined(NPY_CPU_S390)          \
            || defined(NPY_CPU_HPPA)          \
            || defined(NPY_CPU_PPC64)         \
            || defined(NPY_CPU_ARMEB)         \
            || defined(NPY_CPU_ARMEB_AARCH32) \
            || defined(NPY_CPU_ARMEB_AARCH64) \
            || defined(NPY_CPU_SH_BE)         \
            || defined(NPY_CPU_MIPSEB)        \
            || defined(NPY_CPU_OR1K)          \
            || defined(NPY_CPU_M68K)          \
            || defined(NPY_CPU_ARCEB)
        #define NPY_BYTE_ORDER NPY_BIG_ENDIAN

    #else
        #error Unknown CPU: can not set endianness
    #endif

#endif

#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_ */