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How do I typedef a function pointer with the C++11 using syntax?

... It has a similar syntax, except you remove the identifier from the pointer: using FunctionPtr = void (*)(); Here is an Example If you want to "take away the uglyness", try what Xeo suggested: #include <type_traits> using FunctionPtr = std::add_poi...
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Why does Math.floor return a double?

Official Javadoc says that Math.floor() returns a double that is "equal to a mathematical integer", but then why shouldn't it return an int ? ...
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How to remove last n characters from every element in the R vector

I am very new to R, and I could not find a simple example online of how to remove the last n characters from every element of a vector (array?) ...
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How to implement a confirmation (yes/no) DialogPreference?

... That is a simple alert dialog, Federico gave you a site where you can look things up. Here is a short example of how an alert dialog can be built. new AlertDialog.Builder(this) .setTitle("Title") .setMessage("Do you really want to whatever?") .setIcon(android.R.drawable...
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Autowiring two beans implementing same interface - how to set default bean to autowire?

... Spring 2.5/Java/Tomcat application. There is the following bean, which is used throughout the application in many places 5...
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ng-options with simple array init

I'm a little bit confused with Angular and ng-options . 5 Answers 5 ...
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What is pseudopolynomial time? How does it differ from polynomial time?

What is pseudopolynomial time ? How does it differ from polynomial time? Some algorithms that run in pseudopolynomial time have runtimes like O(nW) (for the 0/1 Knapsack Problem ) or O(√n) (for trial division ); why doesn't that count as polynomial time? ...
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What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets? ...
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How do I call setattr() on the current module?

What do I pass as the first parameter " object " to the function setattr(object, name, value) , to set variables on the current module? ...
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Xcode 4 - detach the console/log window

...eferences, and open the Behavior tab. Tell Xcode to open a tab called "Debugger" when "Run Pauses" or "Run Starts". Then run it, and break that Debugging tab out into another window (drag it off the tab bar into its own window by just letting it drop outside the current window). Now reform it to y...