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“Unknown class in Interface Builder file” error at runtime

Even though Interface Builder is aware of a MyClass , I get an error when starting the application. 46 Answers ...
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Test PHP headers with PHPUnit

I'm trying to use PHPunit to test a class that outputs some custom headers. 7 Answers ...
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Eclipse HotKey: how to switch between tabs?

How can I switch between opened windows in Eclipse? There is Ctrl + F6 , but it's asking me which one I want, but I want switch it like tabs in browser or window in operating system ( Cmd / Win + Tab ) without file-selection from the list. How to do this easy thing in Eclipse? ...
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Why do you use typedef when declaring an enum in C++?

I haven't written any C++ in years and now I'm trying to get back into it. I then ran across this and thought about giving up: ...
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Are PDO prepared statements sufficient to prevent SQL injection?

...short answer is NO, PDO prepares will not defend you from all possible SQL-Injection attacks. For certain obscure edge-cases. I'm adapting this answer to talk about PDO... The long answer isn't so easy. It's based off an attack demonstrated here. The Attack So, let's start off by showing the att...
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What is an unsigned char?

In C/C++, what an unsigned char is used for? How is it different from a regular char ? 17 Answers ...
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Merge multiple lines (two blocks) in Vim

I'd like to merge two blocks of lines in Vim, i.e. take lines n..m and append them to lines a..b . If you prefer a pseudocode explanation: [a[i] + b[i] for i in min(len(a), len(b))] ...
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Does Python optimize tail recursion?

I have the following piece of code which fails with the following error: 6 Answers 6 ...
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Ignoring directories in Git repositories on Windows

How can I ignore directories or folders in Git using msysgit on Windows? 18 Answers 18...
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How do I rename a project in Xcode 5?

How do I rename a project in Xcode 5? What steps do I need to take? In the past this was always a very tricky manual process. ...