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How to convert a number to string and vice versa in C++
...an use stream manipulators, such as std::endl, std::hex and functions std::setw(), std::setprecision() etc. with string streams in exactly the same manner as with cout
Do not confuse std::ostringstream with std::ostrstream. The latter is deprecated
Use boost lexical cast. If you are not familiar wi...
how to show lines in common (reverse diff)?
.... I find grep to be more admin-friendly than comm, so if you just want the set of matching lines (useful for comparing CSVs, for instance) simply use
grep -F -x -f file1 file2
or the simplified fgrep version
fgrep -xf file1 file2
Plus, you can use file2* to glob and look for lines in common wi...
Generate a heatmap in MatPlotLib using a scatter data set
I have a set of X,Y data points (about 10k) that are easy to plot as a scatter plot but that I would like to represent as a heatmap.
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Checkout old commit and make it a new commit [duplicate]
...commits, and I want to make the version 3 commits ago as the new version. If I do git checkout xxxx , it creates a new branch and it seems like I can only merge it? Could I make this the new "master version"?
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Why is super.super.method(); not allowed in Java?
...just an easy-to-understand example of violating encapsulation. It could be setting a property instead. Besides, not all aspects will be visible at a type level. Generics isn't the answer to everything.
– Jon Skeet
Feb 25 '09 at 15:56
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Set Colorbar Range in matplotlib
... norm=mpl.colors.Normalize(vmin=-0.5, vmax=1.5))
cbar.set_clim(-2.0, 2.0)
With the two different limits you can control the range and legend of the colorbar. In this example only the range between -0.5 to 1.5 is show in the bar, while the colormap covers -2 to 2 (so this could...
How do you run a command for each line of a file?
...ces can be supported by changing the separator. To change it to newlines, set the 'IFS' environment variable before the script/command. Ex: export IFS='$\n'
– codesniffer
Sep 14 '18 at 22:58
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Print a file's last modified date in Bash
I can't seem to find how to print out the date of a file. I'm so far able to print out all the files in a directory, but I need to print out the dates with it.
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ZSH complains about RVM __rvm_cleanse_variables: function definition file not found
... seem necessary to bypass the remove file confirmation (if the user has it set in the first place)
– pech0rin
Dec 5 '16 at 21:38
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Pythonic way to print list items
I would like to know if there is a better way to print all objects in a Python list than this :
11 Answers
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