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How can I do test setup using the testing package in Go
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How are you supposed to pass context from the setup function to the tests without using global variables ? For example if mySetupFunction() creates a temporary directory to perform testing in (with a unique, random name), how do the tests know the name of the di...
Number of processors/cores in command line
I am running the following command to get the number of processors/cores in Linux:
10 Answers
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Why is the String class declared final in Java?
From when I learned that the class java.lang.String is declared as final in Java, I was wondering why that is. I didn't find any answer back then, but this post: How to create a replica of String class in Java? reminded me of my query.
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An efficient way to transpose a file in Bash
...hape function in APL, comes with BSDs and OS X, but it should be available from package managers on other platforms.
A second option is to use Ruby:
ruby -e'puts readlines.map(&:split).transpose.map{|x|x*" "}'
A third option is to use jq:
jq -R .|jq -sr 'map(./" ")|transpose|map(join(" "))[...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
...ents for Process. This is potentially better than using a global variable.
From the discussion page you linked, it appears that support for 64-bit Linux was added to sharedmem a while back, so it could be a non-issue.
I don't know about this one.
No. Refer to example below.
Example
#!/usr/bin/env...
cannot load such file — zlib even after using rvm pkg install zlib
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I ended up installing zlib from apt-get and then reinstalling ruby to not use the rvm directory for zlib.
Here's how do:
$ sudo apt-get install zlib1g-dev
$ rvm reinstall 1.9.3
[Edit] As commenter @chrisfinne mentions, on CentOS/RedHat based system...
Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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I think the -devel convention is for RPM and the -dev convention is for DEB. Try apt-cache search '^libfreetype.*-dev$' which gives libfreetype6-dev.
– Dietrich Epp
Dec 12 '13 at 3:09
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What is an Intent in Android?
...n; in other words,
a messaging object you can use to request an action from another app component
An Intent is basically a message to say you did or want something to happen. Depending on the intent, apps or the OS might be listening for it and will react accordingly. Think of it as a blast em...
What is the correct way of using C++11's range-based for?
... ctor.
3 X copy ctor.
5 X copy ctor.
7 X copy ctor.
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As it can be read from the output, copy constructor calls are made during range-based for loop iterations.
This is because we are capturing the elements from the container by value
(the auto x part in for (auto x : v)).
This is inefficient c...
Recommended Fonts for Programming? [closed]
What fonts do you use for programming, and for what language/IDE? I use Consolas for all my Visual Studio work, any other recommendations?
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