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C++ performance vs. Java/C#

My understanding is that C/C++ produces native code to run on a particular machine architecture. Conversely, languages like Java and C# run on top of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because ...
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What are good examples of genetic algorithms/genetic programming solutions? [closed]

...s a professional programmer (1995) was writing a genetic-algorithm based automated trading system for S&P500 futures. The application was written in Visual Basic 3 [!] and I have no idea how I did anything back then, since VB3 didn't even have classes. The application started with a population...
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Please explain the exec() function and its family

...execution model" is that there are two operations you can do. The first is to fork(), which creates a brand new process containing a duplicate (mostly) of the current program, including its state. There are a few differences between the two processes which allow them to figure out which is the paren...
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What is the exact problem with multiple inheritance?

...ople asking all the time whether multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves. ...
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Inline functions in C#?

... Finally in .NET 4.5, the CLR allows one to hint/suggest1 method inlining using MethodImplOptions.AggressiveInlining value. It is also available in the Mono's trunk (committed today). // The full attribute usage is in mscorlib.dll, // so should not need to include ...
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PHP “php://input” vs $_POST

I have been directed to use the method php://input instead of $_POST when interacting with Ajax requests from JQuery. What I do not understand is the benefits of using this vs the global method of $_POST or $_GET . ...
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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl

When I attempt to connect to a MySQL server from PHP, I see the following error: 1 Answer ...
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How to redirect to a 404 in Rails?

I'd like to 'fake' a 404 page in Rails. In PHP, I would just send a header with the error code as such: 11 Answers ...
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How to go about formatting 1200 to 1.2k in java

I'd like to format following numbers into the numbers next to them with java: 23 Answers ...
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How do you migrate an IIS 7 site to another server?

I'm wondering what is the best practice for moving a website to another server (along with all settings, etc.) 7 Answers ...