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Yes/No message box using QMessageBox
...ult button with an extra argument (Qt "chooses a suitable default automatically" if you don't or specify QMessageBox::NoButton).
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How to do a scatter plot with empty circles in Python?
... colored disks already plotted by scatter() , so as to highlight them, ideally without having to redraw the colored circles.
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How to change the output color of echo in Linux
... comment, if you are using the echo command, be sure to use the -e flag to allow backslash escapes.
# Continued from above example
echo -e "I ${RED}love${NC} Stack Overflow"
(don't add "\n" when using echo unless you want to add additional empty line)
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How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw
...gure and troubleshoot <p:fileUpload> depends on PrimeFaces version.
All PrimeFaces versions
The below requirements apply to all PrimeFaces versions:
The enctype attribute of the <h:form> needs to be set to multipart/form-data. When this is absent, the ajax upload may just work, but t...
How do I assign an alias to a function name in C++?
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Note: there is no way to make an alias to overloaded function such that all its overloaded versions work, so you should always specify which exact function overload you want.
With C++14 you can go even further with constexpr template variables. That allows you to alias templated functions:
templ...
How do you create a static class in C++?
...int buffer, int bitIndex);
// ...lots of great stuff
private:
// Disallow creating an instance of this object
BitParser() {}
};
BitParser.cpp
bool BitParser::getBitAt(int buffer, int bitIndex)
{
bool isBitSet = false;
// .. determine if bit is set
return isBitSet;
}
You can use t...
Why can I pass 1 as a short, but not the int variable i?
...oes the first and second Write work but not the last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allowed but the last? The second being allowed but not the last really blows my mind.
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What is pseudopolynomial time? How does it differ from polynomial time?
...ng TSP takes time O(n · n!), which isn't polynomial time.
These runtimes all refer to some variable n that tracks the size of the input. For example, in selection sort, n refers to the number of elements in the array, while in TSP n refers to the number of nodes in the graph. In order to standardi...
How can I change the image displayed in a UIImageView programmatically?
...n I look at the UIImageView doc, I can't see any hints about programmatically changing it. Do I have to fetch an UIImage object from that UIImageView ?
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How to ignore SVN folders in WinMerge?
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f: \.jar$
## Ignore subversion housekeeping directories
d: \\.svn$
d: \\._svn$
Save it, then when selecting items to merge, select the filter you defined from the Select Files or Folders dialog box. Bonus points: It will save this and use it as a default for future merges.
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