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Floating point vs integer calculations on modern hardware

...; # else struct timeval tv; if(gettimeofday(&tv, 0) < 0) { perror("oops"); } return (double)tv.tv_sec + (0.000001 * (double)tv.tv_usec); # endif } template< typename Type > void my_test(const char* name) { Type v = 0; // Do not use constants or repeating values // t...
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I need to securely store a username and password in Python, what are my options?

...) as f: passphrase = f.read() if len(passphrase) == 0: raise IOError except IOError: with open(PASSPHRASE_FILE, 'w') as f: passphrase = os.urandom(PASSPHRASE_SIZE) # Random passphrase f.write(base64.b64encode(passphrase)) try: os.remove(SECRETSDB_FILE) # If t...
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What does OSGi solve?

...are verified during deployment, meaning that you get unresolved dependency errors at deployment time instead of NoClassDefFoundErrors at run time. Aside from the module system, the OSGi service layer does deserve mention. It's not as easy to start with because it impacts your architecture (and it's...
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Is a statically-typed full Lisp variant possible?

... Dylan: Extending Dylan's type system for better type inference and error detection share | improve this answer | follow | ...
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Try-catch speeding up my code?

...ot at the mercy of tiny timings, floating point arithmetic and accumulated error. Having made that change, see whether the "non-catch" version is still slower than the "catch" version. EDIT: Okay, I've tried it myself - and I'm seeing the same result. Very odd. I wondered whether the try/catch was...
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What's to stop malicious code from spoofing the “Origin” header to exploit CORS?

...request and response headers as http://client1.dev, but you can see in the error that Chrome somehow knows the real origin was http://client2.dev and correctly rejects the response. Which doesn't matter at this point because the server had already accepted the spoofed request and spent my money. ...
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How to integrate nodeJS + Socket.IO and PHP?

... icon: icon, }); }) .fail(function() { console.log("error"); // send notification when post failed socket.emit('new_notification', { message: 'Messge was failed', title: title, icon: icon, }); }) .always(function() { co...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

... +1 for pointing out one of the most common, and commonly-overlooked, errors of this sort. – R.. GitHub STOP HELPING ICE Aug 11 '10 at 16:27 4 ...
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How to detect when an Android app goes to the background and come back to the foreground

... Awesome solution ! Thanks. If anyone gets "ClassCastException" error then you might have missed adding it in the application tag inside your Manifest.xml <application android:name="your.package.MyApplication" ...
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Injecting content into specific sections from a partial view ASP.NET MVC 3 with Razor View Engine

...directly related to a view that are in a separate file, it's a programming error if you don't include your script along with your view. Having it in a separate file separates interaction from presentation and allows an abundance of other benefits from it being in a separate file. ...