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Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...

... 通过野指针调用到虚函数 还是上面那个例子,但是在基类构造函数中调用callVirtual: Derived* pD = new Derived; Base* pB = pD; delete pD; pB->virtualFunc(); 其实对于第一种情况,如果你在基类构造函数或析构函数中直接调用纯...
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可重入函数、可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术

可重入函数、可重入函数及线程安全重入即表示重复进入,首先它意味着这个函数可以被中断,其次意味着它除了使用自己栈上的变量以外依赖于任何环境(包括static),这样的函数就是purecode(纯代码)可重入,可以允许...
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也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...错的地方大家别笑,看ReactOS的源码好多天了,许多windows下...By::ProgrammeBoy Blog:http://hi.baidu.com/ProgrammeBoy 老鸟飞过,科普类….有错的地方大家别笑, 看ReactOS的源码好多天了,许多windows下明白的地方看看ReactOS的代码也就知道...
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Download a file by jQuery.Ajax

... You can with HTML5 NB: The file data returned MUST be base64 encoded because you cannot JSON encode binary data In my AJAX response I have a data structure that looks like this: { result: 'OK', download: { mimetype: string(mim...
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TCP 的那些事儿(下) - 更多技术 - 清泛网 - 专注C/C++及内核技术

TCP 的那些事儿(下)这篇文章是下篇,所以如果你对TCP熟悉的话,还请你先看看上篇《TCP的那些事儿(上)》 上篇中,我们介绍了TCP的协议头、状态机、数据重... 这篇文章是下篇,所以如果你对TCP熟悉的话,还请你先看...
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Is it possible to read from a InputStream with a timeout?

...the data are available from the shell, the method returns a value > 0. NB: Cygwin uses cmd.exe too. Simplest solution (no blocking, so no timeout required) Just use this: byte[] inputData = new byte[1024]; int result = is.read(inputData, 0, is.available()); // result will indica...
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社交应用组件 · App Inventor 2 中文网

...)以及是否可以单击(启用)。 联系人选择框组件可能适用于所有手机。例如,在3.0之前的Android系统上,它无法选择电话号码,并且电子邮件地址列表将仅包含一封电子邮件。 属性 背景颜色 设置联系人选择框的背景...
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Naming of ID columns in database tables

... ID is a SQL Antipattern. See http://www.amazon.com/s/ref=nb_sb_ss_i_1_5?url=search-alias%3Dstripbooks&field-keywords=sql+antipatterns&sprefix=sql+a If you have many tables with ID as the id you are making reporting that much more difficult. It obscures meaning and makes co...
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How to ignore user's time zone and force Date() use specific time zone

... nb. Helsinki only has one 'l'. This mistake really detracts from this answer. – Ben McIntyre Mar 20 '17 at 14:31 ...
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Get event listeners attached to node using addEventListener

...tion(element){ if(_elements_.indexOf(element)==-1){ // NB : split by useCapture to make listener easier to find when removing var elt_listeners=[{/*useCapture=false*/},{/*useCapture=true*/}]; _elements_.push(element); _listeners_.push(elt_liste...