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What's the easiest way to install a missing Perl module?
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Gentoo: category dev-perl
You should always prefer them as you benefit from automatic (security) updates and the ease of removal. This can be pretty tricky with the cpan tool itself.
For Gentoo there's a nice tool called g-cpan which builds/installs the module from CPAN and creates a Gentoo pac...
Capturing Groups From a Grep RegEx
...pace. It's awkward to escape and you can't use quotes since that forces it from a regex to an ordinary string. The correct way to do it is to use a variable. Quotes can be used during the assignment making things much simpler.
– Paused until further notice.
Oct...
How do I copy the contents of one stream to another?
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From .NET 4.5 on, there is the Stream.CopyToAsync method
input.CopyToAsync(output);
This will return a Task that can be continued on when completed, like so:
await input.CopyToAsync(output)
// Code from here on will be r...
Why would I prefer using vector to deque
...(Thus you can have a vector underneath or a regular array and call the API from your memory block).
Where deque has its biggest advantages are:
When growing or shrinking the collection from either end
When you are dealing with very large collection sizes.
When dealing with bools and you really wa...
How can I convert a std::string to int?
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In C++11 there are some nice new convert functions from std::string to a number type.
So instead of
atoi( str.c_str() )
you can use
std::stoi( str )
where str is your number as std::string.
There are version for all flavours of numbers:
long stol(string), float stof(...
Why use 'git rm' to remove a file instead of 'rm'?
On SVN, removing something from the filesystem directly (rather than using svn) created a load of headaches.
7 Answers
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What are the differences between ArrayList and Vector?
... element. Structural modification means addition or deletion of element(s) from the list. Setting the value of an existing element is not a structural modification.
Collections.synchronizedList is normally used at the time of creation of the list to avoid any accidental unsynchronized access to the...
How do I enable language extensions from within GHCi?
...koverflow.com%2fquestions%2f12584884%2fhow-do-i-enable-language-extensions-from-within-ghci%23new-answer', 'question_page');
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GitHub Error Message - Permission denied (publickey)
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The helping part is using ssh -vT git@github.com from the Github help page to help debug what key your repo is using. I suggest you add it in your answer.
– MaximeBernard
Dec 22 '15 at 9:54
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Reading a huge .csv file
I'm currently trying to read data from .csv files in Python 2.7 with up to 1 million rows, and 200 columns (files range from 100mb to 1.6gb). I can do this (very slowly) for the files with under 300,000 rows, but once I go above that I get memory errors. My code looks like this:
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