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Setting PATH environment variable in OSX permanently
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What is a smart pointer and when should I use one?
... of code is exited, or until the containing object is itself destroyed.
A more complex smart pointer policy involves reference counting the pointer. This does allow the pointer to be copied. When the last "reference" to the object is destroyed, the object is deleted. This policy is implemented by b...
How to find the key of the largest value hash?
...y(s) where the value is equal to the max of all values. This should return more than one key if there's a tie.
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Utilizing multi core for tar+gzip/bzip compression/decompression
... of available cores, or eight if it could not query that. You can ask for more with -p n, e.g. -p 32. pigz has the same options as gzip, so you can request better compression with -9. E.g.
tar cf - paths-to-archive | pigz -9 -p 32 > archive.tar.gz
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What are WSGI and CGI in plain English?
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Technically one could say there are more subtle variations than just those two, at least in as much as how the processes get started or how code gets activated within an embedded system. So one just has to be careful in generalising things into just those two c...
Difference between / and /* in servlet mapping url pattern
... is able to let the request continue to any of the servlets listening on a more specific URL pattern by calling FilterChain#doFilter().
<url-pattern>/</url-pattern>
The / doesn't override any other servlet. It only replaces the servletcontainer's builtin default servlet for all requests ...
Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?
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git pull from master into the development branch
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The steps you listed will work, but there's a longer way that gives you more options:
git checkout dmgr2 # gets you "on branch dmgr2"
git fetch origin # gets you up to date with origin
git merge origin/master
The fetch command can be done at any point before the merge, i.e., you ca...
Get size of all tables in database
I have inherited a fairly large SQL Server database. It seems to take up more space than I would expect, given the data it contains.
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MVC Vs n-tier architecture
...se the difference between a layer and a tier. It is true that you can run more than one tier on a physical mahcine (e.g. you divide up a big server via hypervisors), but the point here is N-Tier aludes to a physical network hop (e.g. TCP/IP). Locally you would be more efficent to use named pipes, ...