趋势科技 笔试

第一部分
1.对sizeof()的考察很深入
2.debug环境下的##，不懂
3.选择
4.类的虚函数
5.
6.
7.
8.

第二部分
主要是networks，考到IPV4 IPV6 DNS 网络中的传输等，不会，全蒙的

第三部分
阅读题，有ABCDE五个英文选项，根据题目所述选出最能符合或者最不符合题设的一项，一点都不难但是做的很慢，以至于后来么的时间去做编程题

第四部分
8题读程序找错误并说明错误的原因，相当有挑战

第五部分
编程题及开放问题
1.逆序
char * strrev(char *s)
{
    int j,k,c;
    for(k=0;s[k] != 0;k++);
    for(j=0,k--;j<k;j++,k--) {
    c = s[j];
    s[j] = s[k];
    s[k] = c;
    }
    return s;
}
2.从一个字符串中查找另一个字符串
/*******************************************************************
*                                                                  *
*             This software is part of the ast package             *
*                Copyright (c) 1985-2004 AT&T Corp.                *
*        and it may only be used by you under license from         *
*                       AT&T Corp. ("AT&T")                        *
*         A copy of the Source Code Agreement is available         *
*                at the AT&T Internet web site URL                 *
*                                                                  *
*       http://www.research.att.com/sw/license/ast-open.html       *
*                                                                  *
*    If you have copied or used this software without agreeing     *
*        to the terms of the license you are infringing on         *
*           the license and copyright and are violating            *
*               AT&T's intellectual property rights.               *
*                                                                  *
*            Information and Software Systems Research             *
*                        AT&T Labs Research                        *
*                         Florham Park NJ                          *
*                                                                  *
*               Glenn Fowler <gsf@research.att.com>                *
*                David Korn <dgk@research.att.com>                 *
*                 Phong Vo <kpv@research.att.com>                  *
*                                                                  *
*******************************************************************/
#pragma prototyped

#if defined(__STDPP__directive) && defined(__STDPP__hide)
__STDPP__directive pragma pp:hide strstr
#else
#define strstr        ______strstr