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国内最美旅游景点TOP10 总有一处让你心动 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...海的月和大理古城，大理还有更多“风花雪月”的风光，从千丝万缕的细节里给人们曼妙的体验。美丽的自然风光再配上身穿白族服装的少女，大理让人流连忘返。
主要景点：大理古城、洱海、双廊、苍山、崇圣寺三塔、蝴蝶...
Stack smashing detected
... mov %rax,-0x8(%rbp)
40058e: 31 c0 xor %eax,%eax
char arr[] = {'a', 'b', 'c', 'd'};
400590: c6 45 f4 61 movb $0x61,-0xc(%rbp)
400594: c6 45 f5 62 movb $0x62,-0xb(%rbp)
400598: c6 45 f6 63 m...
How to reverse a singly linked list using only two pointers?
...out using a third. Simply cast the pointers to a int/long and perform the XOR operation a couple of times. This is one of those C tricks that makes for a fun question, but doesn't have any practical value.
Can you reduce the O(n) complexity? No, not really. Just use a doubly linked list if yo...
What does |= (single pipe equal) and &=(single ampersand equal) mean
...
I think you want to use a XOR instead of an AND for this.
– GameZelda
Aug 4 '11 at 13:59
...
How can I map True/False to 1/0 in a Pandas DataFrame?
...r: numpy boolean subtract, the -` operator, is deprecated, use the bitwise_xor, the ^ operator, or the logical_xor function instead.` Using @User's answer fixes this.
– Amadou Kone
Mar 13 '19 at 16:01
...
Is there XNOR (Logical biconditional) operator in C#?
...
XOR = A or B, but Not A & B or neither (Can't be equal [!=])
XNOR is therefore the exact oppoiste, and can be easily represented by == or ===.
However, non-boolean cases present problems, like in this example:
a = 5
b =...
通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
.../proc/sys/kernel/pid_max，/proc/sys/net/ipv4/ip_local_port_range 等等，从文件的名字大致可以猜出所限制的资源种类。由于该目录下涉及的文件众多，在此不一一介绍。有兴趣的读者可打开其中的相关文件查阅说明。
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ulimit 管理系...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...vim /etc/sysctl.conf
[root@redhat mnt]# sysctl –p 使之生效
从互联网上找到这个包，然后上传到/MNT/目录
注意：为避免与 pdksh 冲突，ksh-2*包可以不安装或在安装完 pdksh 以后再安装。
将pdksh 程序包下载到本地。 Pdksh安装包需要在...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...支持基于mysql认证功能，所以这里要源码编译安装postfix
从配置简单方面考虑，我们根据postfix的默认配置条件进行新建用户等，以免漏掉某些修改，导致的一些麻烦
1、建立postfix用户，并且指定UID，GID为2525，组postdrop
groupadd -...
线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...m_hWnd)) != NULL ||
(p = pMap->LookupTemporary(m_hWnd)) != NULL)失败;从线程的句柄映射表没有句柄pWnd->m_hWnd所对应 的对象。
3.ASSERT((CWnd*)p == this);句柄pWnd->m_hWnd所对应 的对象并不是自身。
进行这几种断言的目的：确保C++窗口对象（Cwnd）...