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How much faster is C++ than C#?

...faster in later versions of the runtime (.NET CLR or Java VM), without you doing anything. And there are a lot of useful optimizations JIT compilers can do that are simply impossible in languages with pointers. Also, some argue that garbage collection should generally be as fast or faster as manual ...
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Can't start Eclipse - Java was started but returned exit code=13

...case, I was using a 64-bit JDK with a 32-bit Eclipse on a 64-bit OS. After downgrading the JDK to 32-bit, Eclipse started working. Use one of the following combinations. 32-bit OS, 32-bit JDK, 32-bit Eclipse (32-bit only) 64-bit OS, 32-bit JDK, 32-bit Eclipse 64-bit OS, 64-bit JDK, 64-bit Eclipse...
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How to create a self-signed certificate for a domain name for development?

I have subdomain.example.com that I use for development purposes. My web application solution contains a web API etc, that I need to call from external systems, hence I am not using localhost. ...
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Learning Python from Ruby; Differences and Similarities

... Here are some key differences to me: Ruby has blocks; Python does not. Python has functions; Ruby does not. In Python, you can take any function or method and pass it to another function. In Ruby, everything is a method, and methods can't be directly passed. Instead, you have to wra...
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Ways to eliminate switch in code [closed]

... foreach (var animal in zoo) { switch (typeof(animal)) { case "dog": echo animal.bark(); break; case "cat": echo animal.meow(); break; } } becomes this: foreach (var animal in zoo) { echo animal.speak(); } ...
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How do I package a python application to make it pip-installable?

... Obviously now we have two places where dependencies are defined, but that doesn't necessarily mean that these information are duplicated: setup.py vs requirements.txt With this setup your package should be installable via pip. As Pierre noted in the comments, there's now also a relevant sectio...
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Maven Install on Mac OS X

...-28 12:31:09-0500) Maven home: /usr/share/maven Java version: 1.6.0_29, vendor: Apple Inc. Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home Default locale: en_US, platform encoding: MacRoman OS name: "mac os x", version: "10.7.2", arch: "x86_64", family: "mac" ...
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What is a “cache-friendly” code?

... registers are very expensive and most computer cores have less than a few dozen registers. At the other end of the memory spectrum (DRAM), the memory is very cheap (i.e. literally millions of times cheaper) but takes hundreds of cycles after a request to receive the data. To bridge this gap betwe...
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What exactly are unmanaged resources?

...r you. Unmanaged resources are then everything that the garbage collector does not know about. For example: Open files Open network connections Unmanaged memory In XNA: vertex buffers, index buffers, textures, etc. Normally you want to release those unmanaged resources before you lose all the ...
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SVN upgrade working copy

I cannot do a SVN commit. I get this error: 10 Answers 10 ...