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M_PI works with math.h but not with cmath in Visual Studio

... Interestingly I checked this on an app of mine and I got the same error. I spent a while checking through headers to see if there was anything undef'ing the _USE_MATH_DEFINES and found nothing. So I moved the #define _USE_MATH_DEFINES #include <cmath> to be the first thing in...
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What's the best UML diagramming tool? [closed]

...r creating UML diagrams of all flavours. Usability is a major criteria for me, but I'd still take more power with a steeper learning curve and be happy. Free (as in beer) would be nice, but I'd be willing to pay if the tool's worth it. What should I be using? ...
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how to implement a pop up dialog box in iOS

After a calculation, I want to display a pop up or alert box conveying a message to the user. Does anyone know where I can find more information about this? ...
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How to make EditText not editable through XML in Android?

Can anyone tell me how to make an EditText not editable via XML? I tried setting android:editable to false , but 27 An...
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How do I use installed packages in PyCharm?

In PyCharm , I've added the Python environment /usr/bin/python . However, 12 Answers ...
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How to install ia32-libs in Ubuntu 14.04 LTS (Trusty Tahr)

...Trusty Tahr) yesterday. Everything seems OK. But when I tried to compile some C code, I encounter the following error. The error seems to be due to the OS lacking the 32-bit architecture support. The error output is as following: ...
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Why doesn't git recognize that my file has been changed, therefore git add not working

... I had a problem where once upon a time I set the git index to 'assume unchanged' on my file. You can tell git to stop ignoring changes to the file with: git update-index --no-assume-unchanged path/to/file If that doesn't help a reset may be enough for other...
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Is there hard evidence of the ROI of unit testing?

Unit testing sounds great to me, but I'm not sure I should spend any time really learning it unless I can convince others that is has significant value. I have to convince the other programmers and, more importantly, the bean-counters in management, that all the extra time spent learning the testin...
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The server principal is not able to access the database under the current security context in SQL Se

...m trying to access my hosting server’s database through SQL Server Management Studio, everything till login is fine but when I use the command use myDatabase it gives me this error: ...
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git-diff to ignore ^M

In a project where some of the files contains ^M as newline separators. Diffing these files are apparently impossible, since git-diff sees it as the entire file is just a single line. ...