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What's the best way to model recurring events in a calendar application?

I'm building a group calendar application that needs to support recurring events, but all the solutions I've come up with to handle these events seem like a hack. I can limit how far ahead one can look, and then generate all the events at once. Or I can store the events as repeating and dynamically ...
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess

How to wait in a bash script for several subprocesses spawned from that script to finish and return exit code !=0 when any of the subprocesses ends with code !=0 ? ...
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Best Practice for Exception Handling in a Windows Forms Application?

I'm currently in the process of writing my first Windows Forms application. I've read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translat...
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Convert String to Float in Swift

I'm trying to convert numbers taken from a UITextField, which I presume, are actually Strings, and convert them to Float, so I can multiply them. ...
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John Carmack's Unusual Fast Inverse Square Root (Quake III)

John Carmack has a special function in the Quake III source code which calculates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why t...
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Keep file in a Git repo, but don't track changes

I have several files in a CodeIgniter site that I will want to have in the repo but not track any changes on. 6 Answers ...
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How to embed a video into GitHub README.md?

Is it possible to embed a flash video into README.md on GitHub? It isn't showing up: https://github.com/mattdipasquale/PicSciP ...
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Direct casting vs 'as' operator?

Consider the following code: 17 Answers 17 ...
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How can I remove specific rules from iptables?

I am hosting special HTTP and HTTPS services on the ports 8006 and 8007 respectively. I use iptables to "activate" the server; i.e. to route the incoming HTTP and HTTPS ports: ...
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How do I enable the column selection mode in Eclipse?

News wrote that Eclipse 3.5 finally supports column selection. Unfortunately I don't know HOW to enable it. I tried pressing the ALT-key like I am used to in Visual Studio and all other Microsoft products but that had no effect. ...