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What is The Rule of Three?
...
Introduction
C++ treats variables of user-defined types with value semantics.
This means that objects are implicitly copied in various contexts,
and we should understand what "copying an object" actually means.
Let us consider a simple ex...
How to implement a secure REST API with node.js
... res.setHeader ('accessToken', "you-are-welcome");
res.writeHead(200);
}
res.end();
});
// .......................................................
// "regular" methods (just an example)
// newBook()
// PUT /book
app.put('/book', function (req,res){
var bookData = JSON.parse ...
Implements vs extends: When to use? What's the difference?
... the class that "implements" the interface can implement the methods. The C++ equivalent of an interface would be an abstract class (not EXACTLY the same but pretty much).
Also java doesn't support multiple inheritance for classes. This is solved by using multiple interfaces.
public interface Exam...
STL or Qt containers?
...mplementation across operating systems. A STL implementation must obey the C++ standard, but
is otherwise free to do as it pleases (see the std::string COW controversy). Some STL implementations are especially
bad.
provide hashes, which are not available unless you use TR1
The QTL has a different ...
Scrollable Menu with Bootstrap - Menu expanding its container when it should not
...e menu class..
CSS:
.scrollable-menu {
height: auto;
max-height: 200px;
overflow-x: hidden;
}
HTML
<ul class="dropdown-menu scrollable-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another acti...
What's the rationale for null terminated strings?
As much as I love C and C++, I can't help but scratch my head at the choice of null terminated strings:
18 Answers
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Windows 7, 64 bit, DLL problems
I have a problem with our executable. I'm running this C++ 32-bit executable on my Windows 7 64-bit development box that also has all those Microsoft applications (Visual Studio 2008 + 2010, TFS, SDK, Microsoft Office)...
And it's still running just fine.
...
Is local static variable initialization thread-safe in C++11? [duplicate]
...n gcc:
Do not emit the extra code to use the routines specified in the C++ ABI for thread-safe initialization of local statics. You can use this option to reduce code size slightly in code that doesn't need to be thread-safe.
Also, have a look at the old thread Are function static variables t...
How to use stringstream to separate comma separated strings [duplicate]
...
ah, so it sounds like the problem caused by c++ ability to have a method outside of a class. And probably this is why it never lead to problem in C# / Java. But is it a good practice to have a method outside of a class? Modern languages like Kotlin don't even allow sta...
2014年腾讯代码报告—累计代码行14亿 - 创意 - 清泛网 - 专注C/C++及内核技术
...码新增量就提升一倍，仅去年1年就新增了4.7亿行。其中C++语言稳坐冠军宝座，接近1.5亿行，而Object-C凭借iOS应用的强势而日益强盛。
另外，根据图表，腾讯的程序猿男女比例为9:1，男生每月3400行，女生每月2300行。就毕业院校...