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Is volatile expensive?

...LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad and LoadStore are effectively no-ops on X86 CPUs. Does this mean that volatile read operations can be done without a explicit cache invalidation on x86, and is as fast as a normal variable read (disregarding the reordering co...
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Error when trying vagrant up

I'm using Vagrant for my environment and I've got a little issue: 23 Answers 23 ...
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The Definitive C++ Book Guide and List

...lores the 1989 C++ 2.0 version - Templates, exceptions, namespaces and new casts were not yet introduced. Saying that however, this book goes through the entire C++ standard of the time explaining the rationale, the possible implementations, and features of the language. This is not a book to learn ...
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Setting mime type for excel document

... I believe the standard MIME type for Excel files is application/vnd.ms-excel. Regarding the name of the document, you should set the following header in the response: header('Content-Disposition: attachment; filename="name_of_excel_file.x...
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How to get the second column from command output?

My command's output is something like: 8 Answers 8 ...
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Ruby: How to get the first character of a string

...= "Smith" first_name = "John" Then you can get the initials very cleanly and readably: puts first_name.initial # prints J puts last_name.initial # prints S The other method mentioned here doesn't work on Ruby 1.8 (not that you should be using 1.8 anymore anyway!--but when this answer was p...
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Delete a project from SonarQube

... with Firefox but not Chrome or Safari. This is an old bug from Sonar 3.x and is still present in 4.2. – RCross Apr 8 '14 at 9:44 ...
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How to create a memory leak in Java?

...eploys the app server eventually borks. If lucky you get a clue with ClassCastException z.x.y.Abc cannot be cast to z.x.y.Abc – earcam Jun 27 '11 at 16:55 7 ...
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Best PHP IDE for Mac? (Preferably free!) [closed]

.... Be prepared to allow half a gig of memory then you'll need to shut down and restart. Komodo A step above a Text Editor. Does not support database connections or split views. Color coding and syntax checking are there to an extent. The project control on Komodo is very unwieldy and strange compar...
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Change font size macvim?

I'm using macvim and I love it. I also happen to really like the default font. 7 Answers ...