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When to use ref and when it is not necessary in C#

I have a object that is my in memory state of the program and also have some other worker functions that I pass the object to to modify the state. I have been passing it by ref to the worker functions. However I came across the following function. ...
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A worthy developer-friendly alternative to PayPal [closed]

I understand payments are a tricky thing, but I'm yet to find a worthy alternative to PayPal. I want to change from PayPal because I think they are expensive and it doesn't work in all countries. Furthermore, I think that the API is sufficient, but could be better. The API documentation, however, is...
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JavaScript style for optional callbacks

...k and run it. Is checking if the callback is defined/function a good style or is there a better way? 10 Answers ...
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C++ - passing references to std::shared_ptr or boost::shared_ptr

If I have a function that needs to work with a shared_ptr , wouldn't it be more efficient to pass it a reference to it (so to avoid copying the shared_ptr object)? What are the possible bad side effects? I envision two possible cases: ...
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Why do I need 'b' to encode a string with Base64?

...ters fit neatly into the ASCII character set, and base64 encoding is therefore actually a bit pointless. You can convert it to ascii instead, with >>> encoded = 'data to be encoded'.encode('ascii') Or simpler: >>> encoded = b'data to be encoded' Which would be the same thing ...
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C++ template constructor

I wish to have a non-template class with a template constructor with no arguments. 8 Answers ...
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How to generate and validate a software license key?

...y involved in developing a product (developed in C#) that'll be available for downloading and installing for free but in a very limited version. To get access to all the features the user has to pay a license fee and receive a key. That key will then be entered into the application to "unlock" the f...
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What is the real overhead of try/catch in C#?

So, I know that try/catch does add some overhead and therefore isn't a good way of controlling process flow, but where does this overhead come from and what is it's actual impact? ...
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Android Game Keeps Getting Hacked [closed]

So we've been through this several times now, we release a game (for cheap) and someone hacks it and puts it up on a mirror. We setup Google Alerts for all our apps, so we get told daily who's doing the hacking. So far, we have implemented the licensing service as Google has suggested, our salt is...
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What's the best way to do “application settings” in Android? [closed]

I'd like to store some application settings (like the URL of an API, and some settings for testing) for an Android application. ...