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Twitter image encoding challenge [closed]

...gned to the blue channel as the human eye can't resolve blue very well: nfggames.com/games/ntsc/visual.shtm; this will allow you to have more detail at the expense of some color information being lost. Or perhaps assign it to green? – rpetrich May 26 '09 at 0:5...
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使用CSplitterWnd实现拆分窗口(多视图显示) - C/C++ - 清泛网 - 专注C/C++及内核技术

...的切分条总是固定的,没有任何的变化,我们在使用一些软件比如ACDSee的时候却能发现它们的切分条 却是和自动生成的切分条不一样的。那么如何定制自己的切分条呢?通过重载CSplitterWnd的虚方法OnDrawSplitter和 OnInvertTracker可以...
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C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...l.cpp 和主模块两个文件中——生成工程没有链接错误。去下载源代码自己尝试一下吧。 如果你正在为其他开发人员写模板库,extern 方式会很不爽,因为你必须创建一个带目标模块的链接库(lib),它包含有特化。如果你已经有...
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Daylight saving time and time zone best practices [closed]

...d names An example of the above would be: The soccer world cup finals game happened in South Africa (UTC+2--SAST) on July 11, 2010 at 19:00 UTC. With this information, we can historically determine the exact time when the 2010 WCS finals took place even if the South African timezone defin...
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HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...站) https://www.haproxy.org/download/1.8/src/haproxy-1.8.14.tar.gz (下载地址) http://cbonte.github.io/haproxy-dconv/1.8/configuration.html (文档Haproxy 1.8 文档) HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代理,支持虚拟主机,它是免费、...
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C++ performance vs. Java/C#

...t if you're writing something that isn't hardware dependent (driver, video game, etc), I wouldn't worry about the performance of C# (again can't speak about Java). It'll do just fine. One the Java side, @Swati points out a good article: https://www.ibm.com/developerworks/library/j-jtp09275 ...
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

....如web(80端口)连接. 按照我写的,你只要找到QQ,MSN等其他软件的IP地址,和端口,以及基于什么协议,只要照着写就行了. 最后: drop非法连接 [root@tp ~]# iptables -A INPUT -m state --state INVALID -j DROP [root@tp ~]# iptables -A OUTPUT -m state -...
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内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...

... 作为glibc malloc的替代品。目前已经在chrome、safari等知名软件中运用。 根据官方测试报告,ptmalloc在一台2.8GHz的P4机器上(对于小对象)执行一次malloc及free大约需要300纳秒。而TCMalloc的版本同样的操作大约只需要50纳秒。 小对象...
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ExpressJS How to structure an application?

...les, ALL of your projects will be well-organized and clear: shell scripts, games, mobile apps, enterprise projects, even your home directory. For the Rails community, they want to be able to have a single Rails developer switch from app to app to app and be familiar and comfortable with it each tim...
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使用Activity启动器组件 · App Inventor 2 中文网

...aia 文件),你可以按如下方式找到这些名称: 将源代码下载到你的计算机。 使用文件资源管理器或解压缩实用程序,找到名为 youngandroidproject/project.properties 的文件。 第一行以main=开头。 之后的所有内容都是包名和类名。 例...