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Separation of JUnit classes into special test package?

I am learning the concepts of Test-Driven Development through reading the Craftsman articles (click Craftsman under By Topic ) recommended in an answer to my previous question, "Sample project for learning JUnit and proper software engineering" . I love it so far! ...
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Is the order of iterating through std::map known (and guaranteed by the standard)?

What I mean is - we know that the std::map 's elements are sorted according to the keys. So, let's say the keys are integers. If I iterate from std::map::begin() to std::map::end() using a for , does the standard guarantee that I'll iterate consequently through the elements with keys, sorted i...
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enum.values() - is an order of returned enums deterministic

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How to modify a pull request on GitHub to change target branch to merge into?

I have a pull request that is requesting a merge into master from my branch, but the owner wants me to change the request to merge into a different branch from my branch. ...
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What's the difference between IEquatable and just overriding Object.Equals()?

I want my Food class to be able to test whenever it is equal to another instance of Food . I will later use it against a List, and I want to use its List.Contains() method. Should I implement IEquatable<Food> or just override Object.Equals() ? From MSDN: ...
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What's the difference between using CGFloat and float?

I tend to use CGFloat all over the place, but I wonder if I get a senseless "performance hit" with this. CGFloat seems to be something "heavier" than float, right? At which points should I use CGFloat, and what makes really the difference? ...
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Android Studio Project Structure (v.s. Eclipse Project Structure)

I'm trying to learn android development and I am initially confused by the different project structures between Eclipse and Android Studio. This makes it difficult to follow tutorials designed for Eclipse. Could anyone let me know why these differences exist? Should they exist? ...
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Is it bad practice to have a constructor function return a Promise?

I'm trying to create a constructor for a blogging platform and it has many async operations going on inside. These range from grabbing the posts from directories, parsing them, sending them through template engines, etc. ...
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Difference between $(this) and event.target?

...w to jQuery, and was making tabbed panels, following the tutorial in JavaScript and jQuery : The Missing Manual , there's that first line when the author does this : ...
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Java SafeVarargs annotation, does a standard or best practice exist?

I've recently come across the java @SafeVarargs annotation. Googling for what makes a variadic function in Java unsafe left me rather confused (heap poisoning? erased types?), so I'd like to know a few things: ...