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。
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_MAP_PTR_H
#define ZEND_MAP_PTR_H
#include "zend_portability.h"
#define ZEND_MAP_PTR_KIND_PTR 0
#define ZEND_MAP_PTR_KIND_PTR_OR_OFFSET 1
//#if defined(ZTS) || defined(TSRM_WIN32)
# define ZEND_MAP_PTR_KIND ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
//#else
//# define ZEND_MAP_PTR_KIND ZEND_MAP_PTR_KIND_PTR
//#endif
#if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
# define ZEND_MAP_PTR(ptr) \
ptr ## __ptr
# define ZEND_MAP_PTR_DEF(type, name) \
type * ZEND_MAP_PTR(name)
# define ZEND_MAP_PTR_GET(ptr) \
(*(ZEND_MAP_PTR(ptr)))
# define ZEND_MAP_PTR_SET(ptr, val) do { \
(*(ZEND_MAP_PTR(ptr))) = (val); \
} while (0)
# define ZEND_MAP_PTR_INIT(ptr, val) do { \
ZEND_MAP_PTR(ptr) = (val); \
} while (0)
# define ZEND_MAP_PTR_NEW(ptr) do { \
ZEND_MAP_PTR(ptr) = zend_map_ptr_new(); \
} while (0)
#elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
# define ZEND_MAP_PTR(ptr) \
ptr ## __ptr
# define ZEND_MAP_PTR_DEF(type, name) \
type * ZEND_MAP_PTR(name)
# define ZEND_MAP_PTR_IS_OFFSET(ptr) \
(((uintptr_t)ZEND_MAP_PTR(ptr)) & 1L)
# define ZEND_MAP_PTR_OFFSET2PTR(ptr) \
((void**)((char*)CG(map_ptr_base) + (uintptr_t)ZEND_MAP_PTR(ptr) - 1))
# define ZEND_MAP_PTR_PTR2OFFSET(ptr) \
((void*)((uintptr_t)(((char*)(ptr)) - ((char*)CG(map_ptr_base))) | 1L))
# define ZEND_MAP_PTR_GET(ptr) \
(ZEND_MAP_PTR_IS_OFFSET(ptr) ? \
*(ZEND_MAP_PTR_OFFSET2PTR(ptr)) : \
(void*)(*(ZEND_MAP_PTR(ptr))))
# define ZEND_MAP_PTR_SET(ptr, val) do { \
if (ZEND_MAP_PTR_IS_OFFSET(ptr)) { \
*(ZEND_MAP_PTR_OFFSET2PTR(ptr)) = (val); \
} else { \
*(ZEND_MAP_PTR(ptr)) = (val); \
} \
} while (0)
# define ZEND_MAP_PTR_INIT(ptr, val) do { \
ZEND_MAP_PTR(ptr) = (val); \
} while (0)
# define ZEND_MAP_PTR_NEW(ptr) do { \
ZEND_MAP_PTR(ptr) = zend_map_ptr_new(); \
} while (0)
#else
# error "Unknown ZEND_MAP_PTR_KIND"
#endif
ZEND_API void zend_map_ptr_reset(void);
ZEND_API void *zend_map_ptr_new(void);
ZEND_API void zend_map_ptr_extend(size_t last);
#endif /* ZEND_MAP_PTR_H */