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What does $1 [QSA,L] mean in my .htaccess file?

... 216 Not the place to give a complete tutorial, but here it is in short; RewriteCond basically mean...
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Difference between std::system_clock and std::steady_clock?

... From N3376: 20.11.7.1 [time.clock.system]/1: Objects of class system_clock represent wall clock time from the system-wide realtime clock. 20.11.7.2 [time.clock.steady]/1: Objects of class steady_clock represent clocks for which va...
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django : using select_related and get_object_or_404 together

... 1 Answer 1 Active ...
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“Wrong type argument: commandp” error when binding a lambda to a key

... 127 global-set-key expects an interactive command. (lambda () (interactive) (forward-line 5)) ough...
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How to stop Visual Studio from opening a file on single click?

In my Visual Studio 2012 Solution Explorer, when I single click a filename it opens it. This was different from Visual Studio 2010 (required a double click). Is there a way to make double-click the 'view file' command? ...
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How do I modify a MySQL column to allow NULL?

... answered Oct 17 '08 at 16:55 Daniel SpiewakDaniel Spiewak 51k1111 gold badges101101 silver badges120120 bronze badges ...
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What does the thread_local mean in C++11?

I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
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Closing multiple issues in Github with a commit message

I know you can close issues by putting closes #1 or fixes #1 in the commit message. What is the best way to close multiple issues in the same commit message? ...
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How can I see the current value of my $PATH variable on OS X?

... 145 You need to use the command echo $PATH to display the PATH variable or you can just execute se...
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Rails params explained?

.... For example, if a user's browser requested http://www.example.com/?foo=1&boo=octopus then params[:foo] would be "1" and params[:boo] would be "octopus". In HTTP/HTML, the params are really just a series of key-value pairs where the key and the value are strings, but Ruby on Rails has a spe...