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M_PI works with math.h but not with cmath in Visual Studio

...) and suddenly it compile perfectly. Try moving it higher up the page. Totally unsure as to why this would cause issues though. Edit: Figured it out. The #include <math.h> occurs within cmath's header guards. This means that something higher up the list of #includes is including cmath with...
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How to call a JavaScript function from PHP?

How to call a JavaScript function from PHP? 10 Answers 10 ...
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Determine if ActiveRecord Object is New

... ndnenkov 32.2k99 gold badges6060 silver badges9090 bronze badges answered Oct 20 '11 at 22:20 John BeynonJohn ...
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How to detect iPhone 5 (widescreen devices)?

... First of all, you shouldn't rebuild all your views to fit a new screen, nor use different views for different screen sizes. Use the auto-resizing capabilities of iOS, so your views can adjust, and adapt any screen size. That's not v...
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How to delete an app from iTunesConnect / App Store Connect

... Edit December 2018: Apple seem to have finally added a button for removing the app in certain situations, including apps that never went on sale (thanks to @iwill for pointing that out), basically making the below answer irrelevant. Edit: turns out the deleted apps ...
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Spring .properties file: get element as an Array

... 32 Here is an example of how you can do it in Spring 4.0+ application.properties content: some.k...
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Calling C/C++ from Python?

...e Boost Python Library is a framework for interfacing Python and C++. It allows you to quickly and seamlessly expose C++ classes functions and objects to Python, and vice-versa, using no special tools -- just your C++ compiler. It is designed to wrap C++ interfaces non-intrusively, so that y...
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Difference between $(this) and event.target?

... wrapper $(this) only wraps the DOM element in a jQuery object so you can call jQuery functions on it. You can do the same with $(event.target). Also note that if you rebind the context of this (e.g. if you use Backbone it's done automatically), it will point to something else. You can always get t...
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What's the deal with a leading underscore in PHP class methods?

... { to give it some extra weight. I've never heard of developers prefacing all their methods with underscores, so I can't begin to explain what causes that. share | improve this answer | ...
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?? Coalesce for empty string?

...d make your extension method return a string or null, however, which would allow the coalescing operator to work. This would be odd, however, and I personally prefer your current approach. Since you're already using an extension method, why not just make one that returns the value or a default: s...