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How much is too much with C++11 auto keyword?

I've been using the new auto keyword available in the C++11 standard for complicated templated types which is what I believe it was designed for. But I'm also using it for things like: ...
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How many GCC optimization levels are there?

...e even more) -Ofast (optimize very aggressively to the point of breaking standard compliance) -Og (Optimize debugging experience. -Og enables optimizations that do not interfere with debugging. It should be the optimization level of choice for the standard edit-compile-debug cycle, offeri...
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What's the Point of Multiple Redis Databases?

...is into separate databases as I sometimes need to make use of the keys command on one specific kind of data, and wanted to separate it to make that faster. ...
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Why fragments, and when to use fragments instead of activities?

In Android API 11+, Google has released a new class called Fragment . 11 Answers 11 ...
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Why doesn't JavaScript support multithreading?

...however use, as was suggested, setTimeout to allow some sort of scheduling and “fake” concurrency. This causes the browser to regain control of the rendering thread, and start the JavaScript code supplied to setTimeout after the given number of milliseconds. This is very useful if you want to al...
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What is Gradle in Android Studio?

Gradle is a bit confusing to me, and also for any new Android developer. Can anyone explain what Gradle in Android Studio is and what its purpose is? Why is it included in Android Studio? ...
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Use email address as primary key?

Is email address a bad candidate for primary when compared to auto incrementing numbers? 25 Answers ...
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What's the difference between an id and a class?

What's the difference between <div class=""> and <div id=""> when it comes to CSS? Is it alright to use <div id=""> ? ...
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Is there a way to simulate the C++ 'friend' concept in Java?

... in JAVA to replicate C++ friend mechanism. Lets say I have a class Romeo and another class Juliet. They are in different packages (family) for hatred reasons. Romeo wants to cuddle Juliet and Juliet wants to only let Romeo cuddle her. In C++, Juliet would declare Romeo as a (lover) friend but th...
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What's the difference between istringstream, ostringstream and stringstream? / Why not use stringstr

When would I use std::istringstream , std::ostringstream and std::stringstream and why shouldn't I just use std::stringstream in every scenario (are there any runtime performance issues?). ...