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Nodejs - Redirect url

... res) { if(url.parse(req.url).pathname == '/') { res.writeHead(200, {'content-type': 'text/html'}); var rs = fs.createReadStream('index.html'); util.pump(rs, res); } else { res.writeHead(404, {'content-type': 'text/html'}); var rs = fs.createReadStream...
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Objective-C Static Class Level variables

...C as programming language. Objective-C does not support class variables as C++ does. One Alternative: Simulate a class variable behavior using Objective-C features Declare/Define an static variable within the classA.m so it will be only accessible for the classA methods (and everything you put ins...
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Why do we use __init__ in Python classes?

... Fido is always one. It does make sense to count dogs. Let us say there're 200 million dogs in the world. It's the property of the Dog class. Fido has nothing to do with the number 200 million, nor does Spot. It's called a "class attribute", as opposed to "instance attributes" that are colour or leg...
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(SC) DeleteService FAILED 1072

... 200 make sure the service is stopped, the services control panel is closed, and no open file handl...
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Can I use if (pointer) instead of if (pointer != NULL)?

...to boolean false while non-null pointers are converted into true. From the C++11 standard, section on Boolean Conversions: A prvalue of arithmetic, unscoped enumeration, pointer, or pointer to member type can be converted to a prvalue of type bool. A zero value, null pointer value, or null m...
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public friend swap member function

... What is a friend function? There is confusion around this area. Before C++ was standardized, friend functions did something called "friend name injection", where the code behaved as if if the function had been written in the surrounding namespace. For example, these were equivalent pre-standard:...
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Do I need to explicitly call the base virtual destructor?

When overriding a class in C++ (with a virtual destructor) I am implementing the destructor again as virtual on the inheriting class, but do I need to call the base destructor? ...
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Why doesn't std::queue::pop return value.?

... C++11 note: if T has a cheap noexcept move-constructor (which is often the case for the kind of objects put in stacks) then returning by value is efficient and exception-safe. – Roman L ...
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What was the strangest coding standard rule that you were forced to follow? [closed]

...ere banned. Then the fact this was a leftover from C, rendered obsolete by C++ RAII and functions with size less than 15 lines, was revealed. Since then, like Braveheart: "FREEDOM !!!!" ... :-p ... – paercebal Oct 20 '08 at 21:13 ...
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initialize a vector to zeros C++/C++11

I know in C++11 they added the feature to initialize a variable to zero as such 2 Answers ...