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Declaring an enum within a class

...uct Color { enum Type { Red, Green, Black }; Type t_; Color(Type t) : t_(t) {} operator Type () const {return t_;} private: //prevent automatic conversion for any other built-in types such as bool, int, etc template<typename T> operator T () const; }; ...
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pip issue installing almost any library

I have a difficult time using pip to install almost anything. I'm new to coding, so I thought maybe this is something I've been doing wrong and have opted out to easy_install to get most of what I needed done, which has generally worked. However, now I'm trying to download the nltk library, and neit...
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event Action vs event EventHandler

...u use Action<> your event will not follow the design pattern of virtually any other event in the system, which I would consider a drawback. One upside with the dominating design pattern (apart from the power of sameness) is that you can extend the EventArgs object with new properties without...
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How to detect shake event with android?

...CCELEROMETER) { long curTime = System.currentTimeMillis(); // only allow one update every 100ms. if ((curTime - lastUpdate) > 100) { long diffTime = (curTime - lastUpdate); lastUpdate = curTime; x = values[SensorManager.DATA_X]; y = values[SensorManager.DATA_Y...
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Convert a char to upper case using regular expressions (EditPad Pro)

...m using EditPad Pro (however I am willing to use any other tool that would allow me to do this, as long as it is free to try, since I only need to do this once). ...
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How do you run a SQL Server query from PowerShell?

... would use the following. It is what we use at my company. $ServerName = "_ServerName_" $DatabaseName = "_DatabaseName_" $Query = "SELECT * FROM Table WHERE Column = ''" #Timeout parameters $QueryTimeout = 120 $ConnectionTimeout = 30 #Action of connecting to the Database and executing the query a...
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Android selector & text color

... Should the selector really reside under res/color folder? – mr5 Apr 21 '17 at 4:29  |  sh...
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Iterator invalidation rules

... C++17 (All references are from the final working draft of CPP17 - n4659) Insertion Sequence Containers vector: The functions insert, emplace_back, emplace, push_back cause reallocation if the new size is greater than the old capa...
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Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]

...either the count is communicated nor the types of what is needed - as with all function declarations that use identifier lists. So the caller has to know the types and the count precisely before-hand. So if the caller calls the function giving it some argument, the behavior is undefined. The stack c...
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C++ templates that accept only certain types

...ply forward-declare a global template, but only define (explicitly or partially specialise) it for the valid types: template<typename T> class my_template; // Declare, but don't define // int is a valid type template<> class my_template<int> { ... }; // All pointer types...