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Copy constructor for a class with unique_ptr
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Since the unique_ptr can not be shared, you need to either deep-copy its content or convert the unique_ptr to a shared_ptr.
class A
{
std::unique_ptr< int > up_;
public:
A( int i ) : up_( new int( i ) ) {}
A( const A& a ) : up_( new int( *a.up_ ) ) {}
};
i...
What's the point of the X-Requested-With header?
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A good reason is for security - this can prevent CSRF attacks because this header cannot be added to the AJAX request cross domain without the consent of the server via CORS.
Only the following headers are allowed cross domain:
Accept
Accept...
Python subprocess/Popen with a modified environment
I believe that running an external command with a slightly modified environment is a very common case. That's how I tend to do it:
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Tab space instead of multiple non-breaking spaces (“nbsp”)?
Is it possible to insert a tab character in HTML instead of having to type &nbsp; four times?
35 Answers
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How to edit a JavaScript alert box title?
I'm generating a JavaScript alert with following code in C# .NET page:
11 Answers
11
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Differences between cookies and sessions?
...t JSP & Servlets . I have some knowledge of HttpSession - I have used it in some of my sample projects.
9 Answers
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JavaScript Nested function
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Functions are another type of variable in JavaScript (with some nuances of course). Creating a function within another function changes the scope of the function in the same way it would change the scope of a variable. This is especially important for use with closures to reduce ...
LINQ-to-SQL vs stored procedures? [closed]
...ety: I think we all understand this.
Abstraction: This is especially true with LINQ-to-Entities. This abstraction also allows the framework to add additional improvements that you can easily take advantage of. PLINQ is an example of adding multi-threading support to LINQ. Code changes are minimal...
Open file dialog box in JavaScript
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Here is a nice one
Fine Uploader demo
It is an <input type='file' /> control itself. But a div is placed over that and css styles are applied to get that feel. Opacity of the file control is set to 0 so that it appears that the dialog window is opened when ...
Prevent onmouseout when hovering child element of the parent absolute div WITHOUT jQuery
I am having trouble with the onmouseout function in an absolute positoned div. When the mouse hits a child element in the div, the mouseout event fires, but I do not want it to fire until the mouse is out of the parent, absolute div.
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