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mmap() vs. reading blocks

...ux and I came across a nice post (link) on the Linux kernel mailing list. It's from 2000, so there have been many improvements to IO and virtual memory in the kernel since then, but it nicely explains the reason why mmap or read might be faster or slower. A call to mmap has more overhead than rea...
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When to use volatile with multi threading?

...le volatile to prevent the compiler caching the variable in a register and it thus not getting updated correctly. However two threads both accessing a shared variable is something which calls for protection via a mutex isn't it? But in that case, between the thread locking and releasing the mutex t...
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How to increase timeout for a single test case in mocha

I'm submitting a network request in a test case, but this sometimes takes longer than 2 seconds (the default timeout). 8 An...
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Is it possible to update a localized storyboard's strings?

I localized a part of my application with creating a base.lproj storyboard and 3 string files for it. It was a month ago and after that I added new view controller to app, but this controller's buttons and labels not appear in string files ...
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Can “git pull --all” update all my local branches?

...as expected, though not necessarily useful. The option is passed along to git fetch, which then fetches all refs from all remotes, instead of just the needed one; pull then merges (or in your case, rebases) the appropriate single branch. If you want to check out other branches, you're going to have...
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Get the first element of an array

..., if a array "copy" is needed: array_shift(array_slice($array, 0, 1)); With PHP 5.4+ (but might cause an index error if empty): array_values($array)[0]; share | improve this answer | ...
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Why Qt is misusing model/view terminology?

I think that the terminology used in Qt with model/view controls is flawed. On their explanation page they state, that they simplified the MVC to MV by merging View and Controller and they are giving the following picture: ...
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UITextView that expands to text using auto layout

... that is laid out completely using auto layout programmatically. I have a UITextView in the middle of the view with items above and below it. Everything works fine, but I want to be able to expand UITextView as text is added. This should push everything below it down as it expands. ...
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Mixin vs inheritance

What is the difference between a mixin and inheritance? 8 Answers 8 ...
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Coding in Other (Spoken) Languages

This is something I've always wondered, and I can't find any mention of it anywhere online. When a shop from, say Japan, writes code, would I be able to read it in English? Or do languages, like C, PHP, anything, have Japanese translations that they write? ...