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Efficient way to return a std::vector in c++

... @Nawaz I agree. I'm not sure what the best practice is now on SO regarding questions on C++ but not specifically C++11. I suspect I should be inclined to give C++11 answers to a student, C++03 answers to someone waist-deep in production code. Do you have an opinion? ...
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How do you version your database schema? [closed]

... I admit it took a while to get right but now it requires almost no effort to prep an upgrade and even less to perform one. Also, one thing I like is that I can do interim hotfix changes and it has no impact on the upgrade procedure. Each upgrade is a fresh new DB....
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difference between Product Backlog Item and Feature in Team Foundation work item types

...klog Item and then break it down into tasks for your sprint. If you think/know that the new work item won't fit into a single sprint you should create a Feature and identify all the value-providing sprint sized items (Product Backlog Items) that the Feature can be broken down into and use these when...
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What's a correct and good way to implement __hash__()?

...on, this is about as fast as any hash can be. Sure, if the attributes are known to be integers, and there aren't too many of them, I suppose you could potentially run slightly faster with some home-rolled hash, but it likely wouldn't be as well distributed. hash((self.attr_a, self.attr_b, self.attr_...
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JavaScript checking for null vs. undefined and difference between == and ===

...gain, note that the last one is vague; it will also be true if a is null. Now, despite the above, the usual way to check for those is to use the fact that they're falsey: if (!a) { // `a` is falsey, which includes `undefined` and `null` // (and `""`, and `0`, and `NaN`, and [of course] `f...
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The developers of this app have not set up this app properly for Facebook Login?

...al public? and Turn ON the switch next to this. That's it! - App is now publicly available. See the fully green circle next to the app name. share | improve this answer | ...
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Select parent element of known element in Selenium

...her icons and texts --> <span>Close</span> </a> Now that you need to select parent tag 'a' based on <span> text, then use driver.findElement(By.xpath("//a[.//span[text()='Close']]")); Explanation: Select the node based on its child node's value ...
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getApplication() vs. getApplicationContext()

...text.getApplicationContext() when first constructing the singleton. I know this is not an exact and precise answer, but still, does that answer your question? share | improve this answer ...
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iPhone 5 CSS media query

.../667 and it worked on the physical device. – do what now Oct 9 '15 at 17:43  |  show 2 more comments ...
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How to find list of possible words from a letter matrix [Boggle Solver]

... I have been playing a game on my iPhone called Scramble. Some of you may know this game as Boggle. Essentially, when the game starts you get a matrix of letters like so: ...