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When to make a type non-movable in C++11?

...hich is that it would be very hard to do it safely, because you'd need to know that noone is trying to lock the mutex at the moment it's being moved. Since mutexes are one of the building blocks you can use to prevent data races, it would be unfortunate if they weren't safe against races themselves!...
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Random / noise functions for GLSL

...representation so it should be perfectly portable. I gave this a try just now. The results are very good: it looks exactly like static with every input I tried, no visible patterns at all. In contrast the popular sin/fract snippet has fairly pronounced diagonal lines on my GPU given the same inpu...
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What GRANT USAGE ON SCHEMA exactly do?

... Now it's very clear with the directory example :) I must say this is a problem if you insert some table or row with a superuser, for example when you add postGIS using CREATE EXTENSION. It's more or less the same problem with...
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Deep cloning objects

...ing signature: public static T Clone<T>(this T source) { //... } Now the method call simply becomes objectBeingCloned.Clone();. EDIT (January 10 2015) Thought I'd revisit this, to mention I recently started using (Newtonsoft) Json to do this, it should be lighter, and avoids the overhead o...
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How to find where gem files are installed

... After installing the gems, if you want to know where a particular gem is. Try typing: gem list You will be able to see the list of gems you have installed. Now use bundle show and name the gem you want to know the path for, like this: bundle show <gemName&g...
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What does [].forEach.call() do in JavaScript?

... So how do we deal with the disparity, as Motto is clearly a talented and knowledgeable guy, and I would like to imagine that I know what I'm doing/where I'm going (now and then... ...other times it's head-first learning)? The answer is actually quite simple, and something Uncle Bob and Sir Crockf...
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How do I create a new GitHub repo from a branch in an existing repo?

I have master and new-project branches. And now I'd like to create a brand new repo with its master based on the new-project branch. ...
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addEventListener vs onclick

...n that perspective, binding events from javascript would be best practice. Nowadays, I don't think many people worry too much about progressive enhancement, especially not considering the prevalence of stuff like Angular. There's still some separation of concerns arguments about inline events (not u...
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?

...on is [A] rather than [+A]). Note that there is another type of variance known as contravariance. This is very important as it explains why covariance can cause some issues. Contravariance is literally the opposite of covariance: parameters vary upward with subtyping. It is a lot less common par...
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GCM with PHP (Google Cloud Messaging)

...t i dont receive any message on the phone. I want to debug it, but i dont know why my $result is always empty... – Bertrand Jul 5 '12 at 11:49 9 ...