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Null or default comparison of generic argument in C#

I have a generic method defined like this: 13 Answers 13 ...
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How to change package name of an Android Application

My keystore is corrupt, therefore the Android Market is requiring me to rename the app and resubmit it. However, whenever I go to edit the package names in Manifest and throughout the files, it gives me tons of errors. ...
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Interface defining a constructor signature?

It's weird that this is the first time I've bumped into this problem, but: 18 Answers ...
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Why is MATLAB so fast in matrix multiplication?

I am making some benchmarks with CUDA, C++, C#, Java, and using MATLAB for verification and matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied. ...
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UITableView set to static cells. Is it possible to hide some of the cells programmatically?

UITableView set to static cells. 22 Answers 22 ...
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SecurityException: Permission denied (missing INTERNET permission?)

this error is really really really strange and I don't know how to reproduce it and how to fix it because I made a lot of searches but nothing was useful. ...
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How to know what the 'errno' means?

When calling execl(...) , I get an errno=2 . What does it mean? How can I know the meaning of this errno ? 15 Answers ...
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Invoking JavaScript code in an iframe from the parent page

Basically, I have an iframe embedded in a page and the iframe has some JavaScript routines I need to invoke from the parent page. ...
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In a Bash script, how can I exit the entire script if a certain condition occurs?

I'm writing a script in Bash to test some code. However, it seems silly to run the tests if compiling the code fails in the first place, in which case I'll just abort the tests. ...
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How can I make a weak protocol reference in 'pure' Swift (without @objc)

weak references don't seem to work in Swift unless a protocol is declared as @objc , which I don't want in a pure Swift app. ...