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What is the difference between sigaction and signal?

...g/onlinepubs/009695399/functions/signal.html#tag_03_690_07 Whether you're starting from scratch or modifying an old program, sigaction should be the right option. share | improve this answer ...
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What is DOM Event delegation?

...ters phase 2 (target) on the target itself, then enters phase 3 (bubbling) starting on the parent of the target. Nowhere does it reach a child of the target. – Crescent Fresh Apr 12 '17 at 15:01 ...
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How to “warm-up” Entity Framework? When does it get “cold”?

..., so you may want to force compilation of these queries during application startup. Pregenerating views is the other possibility as you mention. Especially, for those queries that take very long to compile and that don't change. That way you move the performance overhead from runtime to compile tim...
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V

... There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the con...
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How does lucene index documents?

... for the sake of finding the most up-to-date results first, would a search start by looking at the newest segments? So just to clarify - suppose a document is updated. The older version of the document is added to the kill list, then any matches that are found in older segments are removed from th...
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What does the thread_local mean in C++11?

...that each thread has a separate copy of the object. The object's life time starts either at thread start (for global variables) or at first initialization (for block-local statics), and ends when the thread ends (i.e. when join() is called). Consequently, only variables that could also be declared ...
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git cherry-pick says “…38c74d is a merge but no -m option was given”

...hould be considered the mainline. This option specifies the parent number (starting from 1) of the mainline and allows cherry-pick to replay the change relative to the specified parent. For example, if your commit tree is like below: - A - D - E - F - master \ / B - C ...
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Constant Amortized Time

...ize as more elements are added to it such as an ArrayList in Java. If we started out with a dynamic array of size 4, it would take constant time to push four elements onto it. Yet pushing a fifth element onto that array would take longer as the array would have to create a new array of doubl...
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Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario

...y class you're using. These methods are always very clearly labeled; they start with the words Begin and End. As in Stream.BeginRead, Socket.BeginConnect, WebRequest.BeginGetResponse, and so on. These methods do use the ThreadPool, but they use IOCPs, which do not interfere with ASP.NET requests....
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What is the purpose of backbone.js?

...f models and mimic nested models, but I don't want to confuse you from the start. share | improve this answer | follow | ...