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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Current File : //usr/include/bind9/isc/serial.h
/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */


#ifndef ISC_SERIAL_H
#define ISC_SERIAL_H 1

#include <inttypes.h>
#include <stdbool.h>

#include <isc/lang.h>
#include <isc/types.h>

/*! \file isc/serial.h
 *	\brief Implement 32 bit serial space arithmetic comparison functions.
 *	Note: Undefined results are returned as false.
 */

/***
 ***	Functions
 ***/

ISC_LANG_BEGINDECLS

bool
isc_serial_lt(uint32_t a, uint32_t b);
/*%<
 *	Return true if 'a' < 'b' otherwise false.
 */

bool
isc_serial_gt(uint32_t a, uint32_t b);
/*%<
 *	Return true if 'a' > 'b' otherwise false.
 */

bool
isc_serial_le(uint32_t a, uint32_t b);
/*%<
 *	Return true if 'a' <= 'b' otherwise false.
 */

bool
isc_serial_ge(uint32_t a, uint32_t b);
/*%<
 *	Return true if 'a' >= 'b' otherwise false.
 */

bool
isc_serial_eq(uint32_t a, uint32_t b);
/*%<
 *	Return true if 'a' == 'b' otherwise false.
 */

bool
isc_serial_ne(uint32_t a, uint32_t b);
/*%<
 *	Return true if 'a' != 'b' otherwise false.
 */

ISC_LANG_ENDDECLS

#endif /* ISC_SERIAL_H */

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