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Why does C# not provide the C++ style 'friend' keyword? [closed]

...riend keyword allows a class A to designate class B as its friend. This allows Class B to access the private / protected members of class A . ...
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What is the difference between char * const and const char *?

... The difference is that const char * is a pointer to a const char, while char * const is a constant pointer to a char. The first, the value being pointed to can't be changed but the pointer can be. The second, the value being pointed at ca...
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What's onCreate(Bundle savedInstanceState)

... If you save the state of the application in a bundle (typically non-persistent, dynamic data in onSaveInstanceState), it can be passed back to onCreate if the activity needs to be recreated (e.g., orientation change) so that you don't lose this prior information. If no data was supplied, savedIns...
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How do I sort strings alphabetically while accounting for value when a string is numeric?

...OrderBy. Enumerable.OrderBy will let you specify any comparer you like. This is one way to do that: void Main() { string[] things = new string[] { "paul", "bob", "lauren", "007", "90", "101"}; foreach (var thing in things.OrderBy(x => x, new SemiNumericComparer())) { Co...
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Moving average or running mean

Is there a SciPy function or NumPy function or module for Python that calculates the running mean of a 1D array given a specific window? ...
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Does my application “contain encryption”?

... [UPDATE: Using HTTPS is now exempt from the ERN as of late September, 2016] https://stackoverflow.com/a/40919650/4976373 Unfortunately, I believe that your app "contains encryption" in terms of US BIS even if you just use HTTPS (if your app is...
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Why is “origin/HEAD” shown when running “git branch -r”?

When you run git branch -r why the blazes does it list origin/HEAD ? For example, there's a remote repo on GitHub, say, with two branches: master and awesome-feature. If I do git clone to grab it and then go into my new directory and list the branches, I see this: ...
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nodeJs callbacks simple example

...or browser console and paste the above definitions. Finally use it with this next line: usingItNow(myCallback); With Respect to the Node-Style Error Conventions Costa asked what this would look like if we were to honor the node error callback conventions. In this convention, the callback shoul...
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What is the “double tilde” (~~) operator in JavaScript? [duplicate]

I'm seeing this in some code, and I have no idea what it does: 4 Answers 4 ...
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?

Is it possible to set the src attribute value in CSS? At present, what I am doing is: 25 Answers ...