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IOException: read failed, socket might closed - Bluetooth on Android 4.3
...w issues still. Basically, this sometimes blocks and fails. Rebooting the SPP-Device (plug off / plug in) helps in such cases. Sometimes I also get another Pairing request after connect() even when the device is already bonded.
UPDATE:
here is a complete class, containing some nested classes. for ...
Is a successor for TeX/LaTeX in sight? [closed]
...E. Knuth and Michael F. Plass, Software--Practice and Experience, Vol. 11, pp. 1119-1184, 1981), ligatures, kerning, beautiful fonts (Knuth worked with Hermann Zapf in creating typefaces like AMS Euler), and precise control over layout of text on a page.
LaTeX was a later set of macros built on top...
App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网
...一句话生成 App 鸿蒙 · 一套积木，多端原生打包！ 下载 AI2伴侣 · 安卓/鸿蒙/iOS aia 源码商店 中文社区 中文教育版 各版本对比 关于 关于我们 发布日志 服务条款 ...
Visual SVN 安装及客户端使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...方法【服务器端】
1.VisualSVN Server，最新版本可以在这里下载：
https://www.visualsvn.com/downloads/
下载后，运行 VisualSVN-Server-1.6.1.msi 程序，点击Next，下面的截图顺序即为安装步骤：
图1：
图2：
注意：Server Port那里，默认端口有8...
对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ngproxynew# cd /usr/ports/www/apache13
jiulongproxynew# make install
3、下载并安装squid
从http://www.squid-cache.org/Versions/v2/2.6/下载squid-2.6.STABLE16.tar.gz
并通过FTP放置服务器目录中/home/funpower，然后开始解压安装：
jiulongproxynew# cd /home/funpower
jiul...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
.../single/data
#进入mongodb文件夹
cd /data/mongodbtest/single
2、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.6.tgz
#解压下载的压缩包
tar xvzf mongodb-linux-x86_64-2.4.6.tgz
#进入mongodb程序执行文件夹
cd mongodb...
Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
性能如何
是否有一些执行耗时的操作，I/O，网络文件下载，文件解析等，是否可以进行优化？是否会影响到功能体验？使用异步线程执行会更好吗？
多线程相关
是否涉及到多线程，临界区访问是否正常？会引入多线程...
What is a smart pointer and when should I use one?
...omething(); // Use the object in some way.
// Destruction of the object happens, depending
// on the policy the smart pointer class uses.
// Destruction would happen even if DoSomething()
// raises an exception
The simplest policy in use involves the scope of the smart pointer wrapper object, ...
What is the >>>= operator in C?
...terals because e is a hexadecimal digit.
– Dietrich Epp
Aug 25 '14 at 22:21
9
@Kay: The hex float...
How to overload std::swap()
...ay to overload swap is to write it in the same namespace as what you're swapping, so that it can be found via argument-dependent lookup (ADL). One particularly easy thing to do is:
class X
{
// ...
friend void swap(X& a, X& b)
{
using std::swap; // bring in swap for bui...