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Is it better to use std::memcpy() or std::copy() in terms to performance?

...r was std::copy. I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating...
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How to read keyboard-input?

... always put an space after your string for the user to enter his input if peace. Enter Tel12340404 vs Enter Tel: 12340404. see! :P – Mehrad May 6 '14 at 0:10 ...
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Easiest way to pass an AngularJS scope variable from directive to controller?

...; <!-- attribute-foo binds to a DOM attribute which is always a string. That is why we are wrapping it in curly braces so that it can be interpolated. --> <my-component attribute-foo="{{foo}}" binding-foo="foo" isolated-expression-foo="updateFoo(newFoo)" > ...
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?

...ventData is a structure e.g. // typedef struct _EventData { // std::string id; // std:: string remote_id; // } EventData; // On Some Situation a void pointer *pData // has been static_casted as // EventData* pointer EventData *evtdata = static_cast<EventData*>(pData); ...
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Web安全测试之XSS - 更多技术 - 清泛网 - 专注C/C++及内核技术

...了什么样的脚本 当然用户提交的数据还可以通过QueryString(放在URL中)和Cookie发送给服务器. 例如下图 HTML Encode XSS之所以会发生, 是因为用户输入的数据变成了代码。 所以我们需要对用户输入的数据进行HTML Encode处理。 将...
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How can I add to List

...t you add a number untypedList.add(200); // But it will also let you add a String! BAD! untypedList.add("foo"); // YOU PROBABLY WANT THIS // This is safer, because it will (partially) check the type of anything you add List<Number> superclassedList = (List<Number>)(List<?>)list; ...
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Why are const parameters not allowed in C#?

...od type system, a type system where when you say "this variable contains a string" that the variable actually contains a reference to a string (or null). We absolutely do not want to put a C-style "const" modifier into the type system because we don't want the type system to be a lie. We want the ty...
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Remove sensitive files and their commits from Git history

... (1MB by default) in your repo's history will be scanned, and any matching string (that isn't in your latest commit) will be replaced with the string "***REMOVED***". You can then use git gc to clean away the dead data: $ git gc --prune=now --aggressive The BFG is typically 10-50x faster than runni...
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术

...些很难发现的bug。 format的语法格式为: format (archetype, string-index, first-to-check) format属性告诉编译器,按照printf, scanf, strftime或strfmon的参数表格式规则对该函数的参数进行检查。“archetype”指定是哪种风格;“string-index...
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live output from subprocess command

...dout.readline, b'') (i.e. the sentinel passed to iter needs to be a binary string, since b'' != ''. – John Mellor Apr 12 '15 at 17:58 4 ...