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What are the differences between Autotools, Cmake and Scons?

What are the differences between Autotools, Cmake and Scons? 5 Answers 5 ...
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Stack, Static, and Heap in C++

I've searched, but I've not understood very well these three concepts. When do I have to use dynamic allocation (in the heap) and what's its real advantage? What are the problems of static and stack? Could I write an entire application without allocating variables in the heap? ...
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How to add a touch event to a UIView?

How do I add a touch event to a UIView? I try: 15 Answers 15 ...
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How to access a dictionary element in a Django template?

I would like to print out the number of votes that each choice got. I have this code in a template: 8 Answers ...
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Adding a column to a data.frame

I have the data.frame below. I want to add a column that classifies my data according to column 1 ( h_no ) in that way that the first series of h_no 1,2,3,4 is class 1, the second series of h_no (1 to 7) is class 2 etc. such as indicated in the last column. ...
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Java 8 Iterable.forEach() vs foreach loop

Which of the following is better practice in Java 8? 8 Answers 8 ...
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What is the difference between \r and \n?

How are \r and \n different? I think it has something to do with Unix vs. Windows vs. Mac, but I'm not sure exactly how they're different, and which to search for/match in regexes. ...
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How to achieve function overloading in C?

Is there any way to achieve function overloading in C? I am looking at simple functions to be overloaded like 14 Answers ...
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defaultdict of defaultdict?

Is there a way to have a defaultdict(defaultdict(int)) in order to make the following code work? 6 Answers ...
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When to use , tag files, composite components and/or custom components?

I started using JSF 2.0 with Facelets recently and got puzzled by new composite components knowing existing <ui:include> and other templating techniques offered by Facelets 1.x. ...