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STL or Qt containers?
...have already switched to QString and I find that I'm using Qt's containers more and more.
When it comes to strings, QString offers much more complete functionality compared to std::basic_string and it is
completely Unicode aware. It also offers an efficient COW implementation, which I've come to re...
Open document with default OS application in Python, both in Windows and Mac OS
...['open', filename])
In Python 3.5+ you can equivalently use the slightly more complex but also somewhat more versatile
subprocess.run(['open', filename], check=True)
If you need to be compatible all the way back to Python 2.4, you can use subprocess.call() and implement your own error checking:...
How do I consume the JSON POST data in an Express application
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How do you perform a left outer join using linq extension methods
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Is there a way for multiple processes to share a listening socket?
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You can share a socket between two (or more) processes in Linux and even Windows.
Under Linux (Or POSIX type OS), using fork() will cause the forked child to have copies of all the parent's file descriptors. Any that it does not close will continue to be shared, ...
Difference between decimal, float and double in .NET?
...he score given to divers or ice skaters, for example.
For values which are more artefacts of nature which can't really be measured exactly anyway, float/double are more appropriate. For example, scientific data would usually be represented in this form. Here, the original values won't be "decimally ...
Define preprocessor macro through CMake?
...d for this purpose. However, recently the command has been superseded by a more fine grained approach (separate commands for compile definitions, include directories, and compiler options).
An example using the new add_compile_definitions:
add_compile_definitions(OPENCV_VERSION=${OpenCV_VERSION})
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How to iterate over values of an Enum having flags?
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Move all files except one
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@Juliano Very cool command! Are there more mathematical operations like OR and XOR? I assume a pipe is for AND.
– Léo Léopold Hertz 준영
Mar 22 '09 at 3:39
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String variable interpolation Java [duplicate]
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@MiaeKim: Then I think it should be more closely scoped. "For pieces of code where performance is critical" is more helpful than "If you care about performance" IMO. Who's going to say they, as a developer, don't care about performance? It's a matter of judging...