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Why use double indirection? or Why use pointers to pointers?
When should a double indirection be used in C? Can anyone explain with a example?
18 Answers
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Use LINQ to get items in one List, that are not in another List
I would assume there's a simple LINQ query to do this, I'm just not exactly sure how.
10 Answers
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Filtering collections in C#
... collection in C#. I am currently using generic List collections, but am open to using other structures if they perform better.
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Scala best way of turning a Collection into a Map-by-key?
If I have a collection c of type T and there is a property p on T (of type P , say), what is the best way to do a map-by-extracting-key ?
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What's the purpose of SQL keyword “AS”?
You can set table aliases in SQL typing the identifier right after the table name.
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Best explanation for languages without null
Every so often when programmers are complaining about null errors/exceptions someone asks what we do without null.
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'IF' in 'SELECT' statement - choose output value based on column values
I need amount to be amount if report.type='P' and -amount if report.type='N' . How do I add this to the above query?
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How can I change an element's text without changing its child elements?
I'd like to update element's text dynamically:
14 Answers
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Python Dictionary to URL Parameters
I am trying to convert a Python dictionary to a string for use as URL parameters. I am sure that there is a better, more Pythonic way of doing this. What is it?
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Should operator
That's basically the question, is there a "right" way to implement operator<< ?
Reading this I can see that something like:
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