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Logic to test that 3 of 4 are True

... I suggest writing the code in a manner that indicates what you mean. If you want 3 values to be true, it seems natural to me that the value 3 appears somewhere. For instance, in C++: if ((int)a + (int)b + (int)c + (int)d == 3) ... ...
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Why does installing Nokogiri on Mac OS fail with libiconv is missing?

...okogiri on Mac OS 10.9.3 and whatever I try, the install fails in the end with the following error message: 33 Answers ...
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How can I determine the URL that a local Git repository was originally cloned from?

I pulled a project from GitHub a few days ago. I've since discovered that there are several forks on GitHub, and I neglected to note which one I took originally. How can I determine which of those forks I pulled? ...
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PHP: How to remove all non printable characters in a string?

... 7 bit ASCII? If your Tardis just landed in 1963, and you just want the 7 bit printable ASCII chars, you can rip out everything from 0-31 and 127-255 with this: $string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string); I...
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Run java jar file on a server as background process

...a jar in server in order to communicate between two applications. I have written two shell scripts to run it, but once I start up that script I can't shut down / terminate the process. If I press ctrl + C or close the console, the server will shut down. Could anyone help me how to modify this scri...
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Is it possible to use raw SQL within a Spring Repository

I need to use raw SQL within a Spring Data Repository, is this possible? Everything I see around @Query is always entity based. ...
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How to get a time zone from a location using latitude and longitude coordinates?

... on StackOverflow about resolving a time zone from a location. This community wiki is an attempt at consolidating all of the valid responses. ...
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Measuring function execution time in R

...en <- end.time - start.time time.taken Not the most elegant way to do it, compared to the answere above , but definitely a way to do it. share | improve this answer | fo...
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Simulate delayed and dropped packets on Linux

... netem leverages functionality already built into Linux and userspace utilities to simulate networks. This is actually what Mark's answer refers to, by a different name. The examples on their homepage already show how you can achieve what you've aske...
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Bash empty array expansion with `set -u`

I'm writing a bash script which has set -u , and I have a problem with empty array expansion: bash appears to treat an empty array as an unset variable during expansion: ...