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How does the Comma Operator work

... Take care to notice that the comma operator may be overloaded in C++. The actual behaviour may thus be very different from the one expected. As an example, Boost.Spirit uses the comma operator quite cleverly to implement list initializers for symbol tables. Thus, it mak...
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How to link to specific line number on github

...Be sure to use the canonical URL too. Otherwise when that file is updated, you'll have a URL that points to the wrong lines! How to make a permanent link to the right lines: Click on the line number you want (like line 18), and the URL in your browser will get a #L18 tacked onto the end. You liter...
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Is there a built-in method to compare collections?

I would like to compare the contents of a couple of collections in my Equals method. I have a Dictionary and an IList. Is there a built-in method to do this? ...
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Java string to date conversion

What is the best way to convert a String in the format 'January 2, 2010' to a Date in Java? 15 Answers ...
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How to copy a selection to the OS X clipboard

I have an area selected in Vim. How can I copy it into the OS X clipboard? 27 Answers ...
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Set markers for individual points on a line in Matplotlib

...ed Matplotlib to plot lines on a figure. Now I would now like to set the style, specifically the marker, for individual points on the line. How do I do this? ...
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What is the difference between == and equals() in Java?

I wanted to clarify if I understand this correctly: 23 Answers 23 ...
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Simple way to calculate median with MySQL

What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but ...
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what does the __file__ variable mean/do?

I usually just hard-wire these with the actual path. But there is a reason for these statements that determine path at runtime, and I would really like to understand the os.path module so that I can start using it. ...
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How do I handle newlines in JSON?

I've generated some JSON and I'm trying to pull it into an object in JavaScript. I keep getting errors. Here's what I have: ...