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Cast an instance of a class to a @protocol in Objective-C

... edited Mar 21 '17 at 21:08 Alexander Abakumov 9,59199 gold badges6363 silver badges9999 bronze badges answered Nov 26 '10 at 1:47 ...
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Remove 'a' from legend when using aesthetics and geom_text

... this was not that obvious. A proper example would have used the OP's code and just added the missing argument like this: .. geom_text(aes(label=Species), show_guide = F) + .. share | improve this...
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Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?

...s say you have 4 cores: With IRIX mode on, 1 fully utilized core is 100% and 4 cores are 400%. With IRIX mode off, 1 fully utilized core is 25% and 4 cores are 100%. This means that by default, top on Linux will show an infinite loop as ~100% and Windows will show it as ~25%, and it means exac...
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Save bitmap to location

...function to download an image from a web server, display it on the screen, and if the user wishes to keep the image, save it on the SD card in a certain folder. Is there an easy way to take a bitmap and just save it to the SD card in a folder of my choice? ...
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What is the use of GO in SQL Server Management Studio & Transact SQL?

SQL Server Management Studio always inserts a GO command when I create a query using the right click "Script As" menu. Why? What does GO actually do? ...
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Preserve colouring after piping grep to grep

... You can override this behavior with grep --color=always The correct command line would be grep --color=always WORD * | grep -v AVOID This is pretty verbose, alternatively you can just add the line alias cgrep="grep --color=always" to your .bashrc for example and use cgrep as the colored gr...
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How to close off a Git Branch?

...'ve made a recent change to our procedure. Using git push --tags is heavy handed and downloads all tags. This makes it difficult to have you're own local tags. Instead we use git push origin branch-<feature-branch> to push just the one tag. – Bill Door Ap...
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How do I concatenate two text files in PowerShell?

I am trying to replicate the functionality of the cat command in Unix. 11 Answers 11...
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GridView VS GridLayout in Android Apps

I have to use a Grid to implement Photo Browser in Android. So, I would like to know the difference between GridView and GridLayout . ...
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is vs typeof

... This should answer that question, and then some. The second line, if (obj.GetType() == typeof(ClassA)) {}, is faster, for those that don't want to read the article. (Be aware that they don't do the same thing) ...