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Timer function to provide time in nano seconds using C++

...ar issues (p4 dual, p4 ht, core2 dual, core2 quad, phenom quad). EDIT 2013/07/16: It looks like there is some controversy on the efficacy of QPC under certain circumstances as stated in http://msdn.microsoft.com/en-us/library/windows/desktop/ee417693(v=vs.85).aspx ...While QueryPerformanceC...
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SQLite - UPSERT *not* INSERT or REPLACE

...ERT support in SQLite! UPSERT syntax was added to SQLite with version 3.24.0! UPSERT is a special syntax addition to INSERT that causes the INSERT to behave as an UPDATE or a no-op if the INSERT would violate a uniqueness constraint. UPSERT is not standard SQL. UPSERT in SQLite follows the syntax e...
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How to assert two list contain the same elements in Python? [duplicate]

... | edited Aug 10 '18 at 16:44 kmad1729 1,05411 gold badge1010 silver badges1919 bronze badges ...
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Tab Vs Space preferences in Vim

... +100 Creating a stab option in Vim itself would not be easy, but I've whipped up this command/function that you can drop in your .vimrc (o...
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LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria

... 470 Whenever you use SingleOrDefault, you clearly state that the query should result in at most a si...
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How do I handle the window close event in Tkinter?

...| edited May 3 '15 at 21:20 nbro 10.9k1717 gold badges7676 silver badges140140 bronze badges answered Se...
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C# equivalent of the IsNull() function in SQL Server

... 10 Answers 10 Active ...
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Cron jobs and random times, within given hours

I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm. ...
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Centering a div block without the width

... Update 27 Feb 2015: My original answer keeps getting voted up, but now I normally use @bobince's approach instead. .child { /* This is the item to center... */ display: inline-block; } .parent { /* ...and this is its parent container. */...
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Javascript: How to loop through ALL DOM elements on a page?

...ments in a page: var all = document.getElementsByTagName("*"); for (var i=0, max=all.length; i < max; i++) { // Do something with the element here } Note that you could use querySelectorAll(), if it's available (IE9+, CSS in IE8), to just find elements with a particular class. if (document...