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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...件包Time::HiRes、File::Tail和rrdtool
首先在http://search.cpan.org
搜索:Time::HiRes和File::Tail：并下载
http://oss.oetiker.ch/rrdtool/pub/?M=D 下载rrdtool-1.2.23.tar.gz
1、安装Time::HiRes
tar zxvf Time-HiRes-1.9707.tar.gz
cd Time-HiRes-1.9707
perl Makefile.PL
make
ma...
C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...不能肯定最好的做法，第45条介绍了如何执行一次恰当的搜索来找到特定的元素。
2. 为将要被修改的元素做一份拷贝，。在map和multimap的情况下，请记住，不要把该拷贝的第一个部分声明为const。毕竟，你想要改变它。
3. 修改...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的块设备。
2、基于DRBD的解决方案
从互联网上也搜索到两个比较成功且适合上面应用场景的案例
DRBD+Heartbeat+NFS文件共享存储架构（主从模式）
http://blog.chinaunix.net/uid-25266990-id-3803277.html
DRBD使用gfs2,cman实现双主分...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
...知道调用的API函数存在于哪个DLL中，否则，操作系统必须搜索系统中存在的所有DLL，并且无法处理不同DLL中的同名函数，这显然是不现实的，所以，必须有个文件包括DLL库正确的定位信息，这个任务是由导入库来实现的。
在...
Deleting elements from std::set while iterating
I need to go through a set and remove elements that meet a predefined criteria.
8 Answers
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Could someone explain the pros of deleting (or keeping) unused code?
...eard many times that unused code must be deleted from the project.
However it is not clear for me "why?".
11 Answers
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Why is it necessary to set the prototype constructor?
In the section about inheritance in the MDN article Introduction to Object Oriented Javascript , I noticed they set the prototype.constructor:
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What does the construct x = x || y mean?
...
It means the title argument is optional. So if you call the method with no arguments it will use a default value of "Error".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with...
Why does Twitter Bootstrap Use Pixels for Font Size?
Given that Twitter Bootstrap is designed to be responsive / device-friendly, why doesn't it use relative font sizes?
5 Answ...
Is it bad practice to make a setter return “this”?
Is it a good or bad idea to make setters in java return "this"?
27 Answers
27
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