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C/C++ NaN constant (literal)?
Is this possible to assign a NaN to a double or float in C/C++? Like in JavaScript you do: a = NaN . So later you can check if the variable is a number or no.
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What is the purpose of the -nodes argument in openssl?
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The option -nodes is not the English word "nodes", but rather is "no DES". When given as an argument, it means OpenSSL will not encrypt the private key in a PKCS#12 file.
To encrypt the private key, you can omit -nodes and your key will be encrypted with 3DES-CBC. To encry...
How to get users to read error messages?
If you program for a nontechnical audience, you find yourself at a high risk that users will not read your carefully worded and enlightening error messages, but just click on the first button available with a shrug of frustration.
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When to call activity context OR application context?
There has been a lot of posting about what these two contexts are.. But I'm still not getting it quite right
7 Answers
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A definitive guide to API-breaking changes in .NET
I would like to gather as much information as possible regarding API versioning in .NET/CLR, and specifically how API changes do or do not break client applications. First, let's define some terms:
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How to remove leading and trailing zeros in a string? Python
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What about a basic
your_string.strip("0")
to remove both trailing and leading zeros ? If you're only interested in removing trailing zeros, use .rstrip instead (and .lstrip for only the leading ones).
[More info in the doc.]
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Package objects
What are package objects, not so much the concept but their usage?
4 Answers
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git-svn: how do I create a new svn branch via git?
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I know this question has been answered a while ago, but after reading it, I it might help adding examples of the specific git svn branch command and relate it to a typical workflow.
Like kch answered, use git svn branch. Here is a full example, (not...
How to add include path in Qt Creator?
... have a project I'm working on in Qt creator that requires a third-party library. I want to add the headers to the include path for the project. How do I do this?
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Using arrays or std::vectors in C++, what's the performance gap?
In our C++ course they suggest not to use C++ arrays on new projects anymore. As far as I know Stroustroup himself suggests not to use arrays. But are there significant performance differences?
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