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C++ Tuple vs Struct

... not the purpose of this discussion so I won't dive into the detail. We all know that writing a == or < or > operator for every single struct definition will be a painful and buggy task. Let replace our custom comparator using std::tie and rerun our benchmark. bool operator<(const Str...
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What can I do with a moved-from object?

... I can do with an object once it has been moved from? I used to think that all you can do with a moved-from object is do destruct it, but that would not be sufficient. ...
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How do HTML parses work if they're not using regexp?

... Usually by using a tokeniser. The draft HTML5 specification has an extensive algorithm for handling "real world HTML". share | ...
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Why use a prime number in hashCode?

...ly be determined by the least significant entry (the one not multiplied at all). Similar entries will collide. Not good for a hash function. 31 is a large enough prime that the number of buckets is unlikely to be divisible by it (and in fact, modern java HashMap implementations keep the number of b...
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onchange event on input type=range is not triggering in firefox while dragging

... Just note that with this solution, in chrome you will get two calls to the handler (one per event), so if you care for that, then you need to guard against it. – Jaime Mar 24 '14 at 17:46 ...
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Android SharedPreference security

... within the app's data directory with filesystem permissions set that only allow the UID that the specific application runs with to access them. So, they are private in so much as Linux file permissions restrict access to them, the same as on any Linux/Unix system. Anyone with root level access to ...
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If strings are immutable in .NET, then why does Substring take O(n) time?

...t tiny substrings from tiny strings, so how the complexity grows asymptotically is completely irrelevant. The long answer is: An immutable data structure built such that operations on an instance permit re-use of the memory of the original with only a small amount (typically O(1) or O(lg n)) of co...
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Array or List in Java. Which is faster?

I have to keep thousands of strings in memory to be accessed serially in Java. Should I store them in an array or should I use some kind of List ? ...
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Application Loader: “Cannot proceed with delivery: an existing transporter instance is currently upl

... Basically, you need to clear out the transport tokens. This can happen if you were to close out of Xcode while in the middle of submitting an app to iTunes Connect. The token files now appear in the Library/Caches/com.apple.amp.i...
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CoffeeScript on Windows?

...y platform. The instructions are the same for Windows, Mac, or Linux Install Nodejs from http://nodejs.org/ Install CoffeeScript globally with the node package manager npm install -g coffeescript or locally npm install --save-dev coffeescript Write a script in your favourite text editor. Save it, ...