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What's the need of array with zero elements?

... This is a way to have variable sizes of data, without having to call malloc (kmalloc in this case) twice. You would use it like this: struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL); This used to be not standard and was considered a hack (as Aniket s...
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Double exclamation points? [duplicate]

...lse. !!"foo" // Evaluates to true. If foo.bar is passed through, then it may not be 0 but some other falsy value. See the following truth table: Truth Table for javascript '' == '0' // false 0 == '' // true 0 == '0' // true false ...
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Is there a way to make R beep/play a sound at the end of a script?

... alarm() The alarm function. It works by sending \a to the console share | improve this answer | follow | ...
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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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What is declarative programming? [closed]

...eep hearing this term tossed around in several different contexts. What is it? 18 Answers ...
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How to update Ruby to 1.9.x on Mac?

...ount on my mac and I am trying to update to the current version of ruby on it (1.9.2) from the snow leopard default of 1.8.7. Can somebody point me to tutorial or explain the best method to update Ruby on my mac from 1.8 to 1.9.2? Thanks ...
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Why and when to use Node.js? [duplicate]

Sorry if I'm a bit ambiguous, but I'm trying to understand the real advantages of using Node.js instead of other server-side language. ...
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IntelliJ Organize Imports

...ze Imports feature similar to that in Eclipse? What I have is a Java file with multiple classes missing their imports. Example: ...
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Setting Objects to Null/Nothing after use in .NET

...et all the objects to null ( Nothing in VB.NET) once you have finished with them? 15 Answers ...
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NSUserDefaults - How to tell if a key exists

...small iPhone app, and I am using NSUserDefaults as my data persistence. It only has to keep track of a few things, such as some names and some numbers so I figure I might as well keep it simple. ...