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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...es <limits.h> are applicable.
In terms of long double, that's actually a floating point value rather than an integer. Similarly to the integral types, it's required to have at least as much precision as a double and to provide a superset of values over that type (meaning at least those valu...
WPF Application that only has a tray icon
... an application that starts minimized to tray. The idea is that it periodically fetches an RSS Feed and creates a Toaster-Popup when there are new feeds.
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Why define an anonymous function and pass it jQuery as the argument?
...de demo code from the backbone.js screencasts. In it, the backbone code is all enclosed in an anonymous function that is passed the jQuery object:
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Looping in a spiral
...tions for this problem wrote in various programming languages however they all seem to stem from the same convoluted approach. I'm going to consider the more general problem of computing a spiral which can be expressed concisely using induction.
Base case: Start at (0, 0), move forward 1 square, tu...
Difference between dispatch_async and dispatch_sync on serial queue?
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I do mean serial execution. In point of view that all tasks are executed serial regards to other tasks in the same queue. Of cause it still can be concurrent regards to other queues. It is the whole point of GCD that tasks can be dispatched and executed concurrently.
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Twitter image encoding challenge [closed]
... 4 = 64 colors) that simply gets blended in in some proportion. Mathematically, this is equivalent to a variable brightness and constant contrast adjustment for each color. Unfortunately, it also means there's no negative contrast to flip the colors.
Once it's computed the position, orientation a...
Does List guarantee insertion order?
...de if you're moving the item later in the list, as your Remove() will move all of the other items down one place before the call to Insert().
Can you boil your code down to something small enough to post?
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When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
...id onRestoreInstanceState (Bundle savedInstanceState)
This method is called between onStart() and onPostCreate(Bundle).
void onSaveInstanceState (Bundle outState)
If called, this method will occur after onStop() for applications targeting platforms starting with Build.VERSION_CODES.P....
How to pass object with NSNotificationCenter
...when you do the addObserver(). The receiveTestNotification should only be called when observing a specific notification.
– Johan Karlsson
Feb 17 '16 at 15:06
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Setting JDK in Eclipse
...f available compilers in the Window -> Preferences -> Java -> Installed JRE's tab.
In the project build path configuration dialog, under the libraries tab, you can delete the entry for JRE System Library, click on Add Library and choose the installed JRE to compile with. Some compilers ca...