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std::enable_if to conditionally compile a member function

...ying to get a simple example to work to understand how to use std::enable_if . After I read this answer , I thought it shouldn't be too hard to come up with a simple example. I want to use std::enable_if to choose between two member-functions and allow only one of them to be used. ...
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How do I pass a method as a parameter in Python

...call__() is meant to be implemented, not to be invoked from your own code. If you wanted method1 to be called with arguments, then things get a little bit more complicated. method2 has to be written with a bit of information about how to pass arguments to method1, and it needs to get values for thos...
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Is there any difference between “foo is None” and “foo == None”?

Is there any difference between: 12 Answers 12 ...
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How to return PDF to browser in MVC?

...Add(new Paragraph("Hello World")); document.Add(new Paragraph(DateTime.Now.ToString())); document.Close(); byte[] byteInfo = workStream.ToArray(); workStream.Write(byteInfo, 0, byteInfo.Length); workStream.Position = 0; return new FileStreamResult(workStream, "application/p...
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How to check a string for specific characters?

How can I check if a string has several specific characters in it using Python 2? 5 Answers ...
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How do I find the location of my Python site-packages directory?

...s where Python installs your local packages: python -m site --user-site If this points to a non-existing directory check the exit status of Python and see python -m site --help for explanations. Hint: Running pip list --user or pip freeze --user gives you a list of all installed per user site-pa...
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Assignment inside lambda expression in Python

... for main in [lambda: sub( ['loop' for factor in [1, 2, 3] if sub( ['def' for my_radius, my_height in [[10 * factor, 20 * factor]] for my_cylinder in [Cylinder(my_radius, my_height)]], echo(u"A cylinder with a r...
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Safely turning a JSON string into an object

... The jQuery method is now deprecated. Use this method instead: let jsonObject = JSON.parse(jsonString); Original answer using deprecated jQuery functionality: If you're using jQuery just use: jQuery.parseJSON( jsonString ); It's exactly w...
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Visual Studio immediate window command for Clear All

...text-menu, L. If you don't have a context-menu key on your keyboard (you know, the one between right-alt and right-ctrl), you can use shift + F10 instead. share | improve this answer | ...
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Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?

...ice. It will save you a lot of pain. I wouldn't flush() either unless you know why you're doing it -- you should let the container handle buffering. – Hal50000 Oct 2 '14 at 22:11 ...