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How well is Unicode supported in C++11?
I've read and heard that C++11 supports Unicode. A few questions on that:
5 Answers
5
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In Bash, how do I add a string after each line in a file?
...
Pure POSIX shell and sponge:
suffix=foobar
while read l ; do printf '%s\n' "$l" "${suffix}" ; done < file |
sponge file
xargs and printf:
suffix=foobar
xargs -L 1 printf "%s${suffix}\n" < file | sponge file
Using join:
suffix=foobar
join file file -e "${suffix}" ...
How can I trim leading and trailing white space?
...
Probably the best way is to handle the trailing white spaces when you read your data file. If you use read.csv or read.table you can set the parameterstrip.white=TRUE.
If you want to clean strings afterwards you could use one of these functions:
# Returns string without leading white space
trim...
How to grep for two words existing on the same line? [duplicate]
... number of matches. Similarly, there is no reason to use -r. I suggest you read man grep.
To grep for 2 words existing on the same line, simply do:
grep "word1" FILE | grep "word2"
grep "word1" FILE will print all lines that have word1 in them from FILE, and then grep "word2" will print the line...
C# vs Java generics [duplicate]
...ks here and there (most notably in constraints). But basically if you can read one, you can likely read/use the other.
The biggest difference though is in the implementation.
Java uses the notion of type erasure to implement generics. In short the underlying compiled classes are not actually...
Why does C++ need a separate header file?
...having to include header files, but having to explicitly check if it has already been included.
13 Answers
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How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
...ng Node.js.
lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom | while read f; do sudo rm /usr/local/${f}; done
sudo rm -rf /usr/local/lib/node /usr/local/lib/node_modules /var/db/receipts/org.nodejs.*
UPDATE: 23 SEP 2016
If you're afraid of running these commands...
Thanks to jguix for th...
Copy file(s) from one project to another using post build event…VS2010
...es.
/Y - Do not prompt for overwrite of existing files.
/R - Overwrite read-only files.
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How to add an image to a JPanel?
...blic ImagePanel() {
try {
image = ImageIO.read(new File("image name and path"));
} catch (IOException ex) {
// handle exception...
}
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
...
In Docker, what's the difference between a container and an image? [duplicate]
...onding execution parameters for use within a container runtime. Images are read-only.
https://docs.docker.com/glossary/?term=image
A container is an active (or inactive if exited) stateful instantiation of an image.
https://docs.docker.com/glossary/?term=container
...