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How is std::function implemented?

...function<int (double)> for the sake of simplicity): struct callable_base { virtual int operator()(double d) = 0; virtual ~callable_base() {} }; template <typename F> struct callable : callable_base { F functor; callable(F functor) : functor(functor) {} virtual int operato...
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Min/Max of dates in an array?

...ngth; ++i) { func(array[i]); } } function reduce(combine, base, array) { foreach(function(element) { base = combine(base, element); }, array); return base; } – blaze Jan 29 '13 at 0:36 ...
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Configuring diff tool with .gitconfig

...cmd = "diffmerge --merge --result=\"$MERGED\" \"$LOCAL\" \"$(if test -f \"$BASE\"; then echo \"$BASE\"; else echo \"$LOCAL\"; fi)\" \"$REMOTE\"" trustExitCode = false [diff] tool = diffmerge [difftool "diffmerge"] cmd = diffmerge \"$LOCAL\" \"$REMOTE\" So, you see, you're d...
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HTTP error 403 in Python 3 Web Scraping

... Definitely it's blocking because of your use of urllib based on the user agent. This same thing is happening to me with OfferUp. You can create a new class called AppURLopener which overrides the user-agent with Mozilla. import urllib.request class AppURLopener(urllib.request....
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How to make an enum conform to a protocol in Swift?

... mutating func adjust() } enum ExampleEnum : ExampleProtocol { case Base, Adjusted var simpleDescription: String { return self.getDescription() } func getDescription() -> String { switch self { case .Base: return "A simple description of en...
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When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]

...which means easy help is available. "Flask is a microframework for Python based on Werkzeug, Jinja 2 and good intentions". Beware - "microframework" may be misleading. This does not mean that Flask is a half-baked library. This mean the core of flask is very, very simple. Unlike Django, It will not...
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Best way to check for “empty or null value”

...SELECT stringexpression , stringexpression = '' AS base_test , (stringexpression = '') IS NOT FALSE AS test1 , (stringexpression <> '') IS NOT TRUE AS test2 , coalesce(stringexpression, '') = '' AS coalesce1 , coalesce(stringexpression, ' ...
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How to handle WndProc messages in WPF?

...ected override void OnSourceInitialized(EventArgs e) { base.OnSourceInitialized(e); HwndSource source = PresentationSource.FromVisual(this) as HwndSource; source.AddHook(WndProc); } private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wPara...
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How do I implement IEnumerable

... @ja72 What if you're already inheriting from another base class and cannot inherit from Collection<MyObject>? – Monroe Thomas Oct 9 '18 at 22:41 ...
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Using WebAPI or MVC to return JSON in ASP.NET

...ontroller instead. Personally, I use Web API controllers for driving JSON-based RESTful clients, I use MVC controllers for handling basic browser routing and delivery of the SPA. share | improve th...