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When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...web application? I would love to have an asynchronous webserver which will allow me to scale easly.
What solution will give the best performance / scalability / most useful framework (in terms of easy of use and easy of developing)?
...
Understanding Canvas and Surface concepts
...nders these to the final display in their correct Z-order. A surface typically has more than one buffer (usually two) to do double-buffered rendering: the application can be drawing its next UI state while the surface flinger is compositing the screen using the last buffer, without needing to wait ...
error: use of deleted function
...e X::x is const, it must be initialized -- but a default ctor wouldn't normally initialize it (because it's a POD type). Therefore, to get a default ctor, you need to define one yourself (and it must initialize x). You can get the same kind of situation with a member that's a reference:
class X {
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How do you copy the contents of an array to a std::vector in C++ without looping?
... later processing. Since I don't know how many times my function will be called before it is time to process the data, I need a dynamic storage structure, so I chose a std::vector . I don't want to have to do the standard loop to push_back all the values individually, it would be nice if I coul...
How can I make a WPF combo box have the width of its widest element in XAML?
...hidden control (Alan Hunford's answer)
Changing the ControlTemplate drastically. Even in this case, a hidden version of an ItemsPresenter may need to be created.
The reason for this is that the default ComboBox ControlTemplates that I've come across (Aero, Luna, etc.) all nest the ItemsPresenter ...
What's the difference between nohup and ampersand
... doesn't (except the shell is confgured that way or doesn't send SIGHUP at all).
Normally, when running a command using & and exiting the shell afterwards, the shell will terminate the sub-command with the hangup signal (kill -SIGHUP <pid>). This can be prevented using nohup, as it catche...
Why do this() and super() have to be the first statement in a constructor?
Java requires that if you call this() or super() in a constructor, it must be the first statement. Why?
19 Answers
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Git keeps asking me for my ssh key passphrase
...-add
This will ask you your passphrase just once, and then you should be allowed to push, provided that you uploaded the public key to Github.
To save key permanently on macOS:
ssh-add -K
This will persist it after you close and re-open it by storing it in user's keychain.
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vs
...urns the character encoding you specified, not the encoding that IE is actually using."
– hotshot309
Jun 5 '12 at 13:51
7
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How to find serial number of Android device?
...ected by the ANDROID_ID bug in 2.2.
As far as I've been able to determine, all affected devices have the same ANDROID_ID, which is 9774d56d682e549c. Which is also the same device id reported by the emulator, btw.
Google believes that OEMs have patched the issue for many or most of their devices, bu...