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Is the “struct hack” technically undefined behavior?

What I am asking about is the well known "last member of a struct has variable length" trick. It goes something like this: ...
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Selecting multiple columns in a pandas dataframe

I have data in different columns but I don't know how to extract it to save it in another variable. 18 Answers ...
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How do I find the length of an array?

Is there a way to find how many values an array has? Detecting whether or not I've reached the end of an array would also work. ...
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How to debug heap corruption errors?

I am debugging a (native) multi-threaded C++ application under Visual Studio 2008. On seemingly random occasions, I get a "Windows has triggered a break point..." error with a note that this might be due to a corruption in the heap. These errors won't always crash the application right away, altho...
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Does python have an equivalent to Java Class.forName()?

I have the need to take a string argument and create an object of the class named in that string in Python. In Java, I would use Class.forName().newInstance() . Is there an equivalent in Python? ...
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ReactJS state vs prop

This may be treading that line between answerable and opinionated, but I'm going back and forth as to how to structure a ReactJS component as complexity grows and could use some direction. ...
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Why is String immutable in Java?

I was asked in an interview why String is immutable 12 Answers 12 ...
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Defining a variable with or without export

What is export for? 14 Answers 14 ...
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Why is i++ not atomic?

Why is i++ not atomic in Java? 9 Answers 9 ...
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What are fixtures in programming?

I have heard of this term many times (in the context of programming) but couldn't find any explanation of what it meant. Any good articles or explanations? ...