大约有 44,490 项符合查询结果(耗时:0.0462秒) [XML]

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What are C++ functors and their uses?

...)(int y) const { return x + y; } private: int x; }; // Now you can use it like this: add_x add42(42); // create an instance of the functor class int i = add42(8); // and "call" it assert(i == 50); // and it added 42 to its argument std::vector<int> in; // assume this contains a bunch of v...
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Encode String to UTF-8

I have a String with a "ñ" character and I have some problems with it. I need to encode this String to UTF-8 encoding. I have tried it by this way, but it doesn't work: ...
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When should you not use virtual destructors?

...re a virtual destructor for a class? When should you specifically avoid writing one? 12 Answers ...
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How to convert View Model into JSON object in ASP.NET MVC?

... In mvc3 with razor @Html.Raw(Json.Encode(object)) seems to do the trick. share | improve this answer | follo...
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JavaScript module pattern with example [closed]

...e of code then var anoyn = (function() { }()); What is closure in JS? It means if we declare any function with any variable scope/inside another function (in JS we can declare a function inside another function!) then it will count that function scope always. This means that any variable in out...
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Concurrent vs serial queues in GCD

...A simple example: you have a block that takes a minute to execute. You add it to a queue from the main thread. Let's look at the four cases. async - concurrent: the code runs on a background thread. Control returns immediately to the main thread (and UI). The block can't assume that it's the only ...
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Why does document.querySelectorAll return a StaticNodeList rather than a real Array?

It bugs me that I can't just do document.querySelectorAll(...).map(...) even in Firefox 3.6, and I still can't find an answer, so I thought I'd cross-post on SO the question from this blog: ...
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Algorithm for creating a school timetable

I've been wondering if there are known solutions for algorithm of creating a school timetable. Basically, it's about optimizing "hour-dispersion" (both in teachers and classes case) for given class-subject-teacher associations. We can assume that we have sets of classes, lesson subjects and teacher...
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typedef struct vs struct definitions [duplicate]

...ween using typedef when defining a structure versus not using typedef . It seems to me like there's really no difference, they accomplish the same goal. ...
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Why doesn't java.util.Set have get(int index)?

...follow | edited Aug 5 '12 at 4:33 answered Apr 20 '09 at 19:20 ...