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How do I base64 encode (decode) in C?

... Here's the one I'm using: #include <stdint.h> #include <stdlib.h> static char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', ...
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Is it better to use std::memcpy() or std::copy() in terms to performance?

...owever, after my first few attempts, I got results that varied wildly from one run to the next, so I'm guessing there was some sort of OS activity going on. I decided to start over. Same compiler settings and flags. There is only one version of MD5, and it's faster than SHA-2, so I did 3000 loops o...
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What is the best collation to use for MySQL with PHP? [closed]

...en comparing characters in the language) and performance. The only special one is utf8_bin which is for comparing characters in binary format. utf8_general_ci is somewhat faster than utf8_unicode_ci, but less accurate (for sorting). The specific language utf8 encoding (such as utf8_swedish_ci) cont...
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What is the difference between “screen” and “only screen” in media queries?

... Let's break down your examples one by one. @media (max-width:632px) This one is saying for a window with a max-width of 632px that you want to apply these styles. At that size you would be talking about anything smaller than a desktop screen in most cas...
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How do I debug error ECONNRESET in Node.js?

...on abruptly closed its end of the connection. This is most probably due to one or more application protocol errors. You could look at the API server logs to see if it complains about something. But since you are also looking for a way to check the error and potentially debug the problem, you should...
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“var” or no “var” in JavaScript's “for-in” loop?

... What if you happen to have more than one for-loop in one scope? You will either have to reuse the index (no var), or you will have to declare lots and lots of new variables (j, k, l, m, …) which you will never use again. – armin ...
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Monad in plain English? (For the OOP programmer with no FP background)

...on the amplified type, that obeys the rules of functional composition mentioned before. There is often a way to get the unamplified type back out of the amplified type. Strictly speaking this operation is not required to have a monad. (Though it is necessary if you want to have a comonad. We won't c...
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How to make a website secured with https

...e all you need is a correctly set up SSL certificate. Is SSL and https one and the same.. Pretty much, yes. Do I need to apply with someone to get some license or something. You can buy an SSL certificate from a certificate authority or use a self-signed certificate. The ones you can p...
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Convert base class to derived class [duplicate]

Is it possible in C# to explicitly convert a base class object to one of it's derived classes? Currently thinking I have to create a constructor for my derived classes that accept a base class object as a parameter and copy over the property values. I don't really like this idea, so I'd like to avoi...
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What is the Haskell response to Node.js?

...locking I/O natively and has ways to scale deployments easily to more than one processor (something not even built-in in Node.js). More details at http://journal.dedasys.com/2010/04/29/erlang-vs-node-js and Node.js or Erlang ...