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How to call a Parent Class's method from Child Class in Python?
... it. super is only needed for proper support of multiple inheritance (and then it only works if every class uses it properly). In general, AnyClass.whatever is going to look up whatever in AnyClass's ancestors if AnyClass doesn't define/override it, and this holds true for "child class calling par...
What is the difference between user and kernel modes in operating systems?
... initial program as being the kernel (but it is normally a bootloader that then calls the kernel still in ring 0).
when a userland process wants the kernel to do something for it like write to a file, it uses an instruction that generates an interrupt such as int 0x80 or syscall to signal the kerne...
How to check that a string is a palindrome using regular expressions?
...traverse the given edge in the machine. If we end up in an accepting state then we say that the machine "accepts" that word.
A regular expression can always be translated into an equivalent finite state machine. That is, one that accepts and rejects the same words as the regular expression (in the ...
How to check if activity is in foreground or in visible background?
... solution. One scenario is if the user pulled down the notification panel, then neither the onPause, onStop, nor the onResume event is called. So what do you do then if none of these events are fired?!
– user4750643
Jul 9 '15 at 15:56
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Managing large binary files with Git
...iles.
However, you may be able to manage the files in a separate repo and then use git-submodule to pull them into your project in a sane way. So, you'd still have the full history of all your source but, as I understand it, you'd only have the one relevant revision of your images submodule. The ...
Set up git to pull and push all branches
... `git branch -r | grep -v '\->'`; do git branch --track $remote; done
Then add your new remote repo:
git remote add bb <path-to-new-repo>
Then you can push all using this command:
git push -u bb --all
Or you can configure the repo using the git config commands noted in the other res...
How to link to specific line number on github
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Click the line number, and then copy and paste the link from the address bar. To select a range, click the number, and then shift click the later number.
Alternatively, the links are a relatively simple format, just append #L<number> to the end ...
Proper way to exit iPhone application?
...eaving the user to wonder what happened. Instead, set a timer in your app, then when the time is up, idle the app -- no activity. An app doing absolutely nothing won't drain the battery.The Springboard is an app, too -- it doesn't shut down just to save energy. Instead, it simply waits for user inpu...
When is null or undefined used in JavaScript? [duplicate]
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@AndyE: Right, but then, the DOM objects are not part of JavaScript ;)
– Felix Kling
Jun 21 '11 at 17:25
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LPCSTR, LPCTSTR and LPTSTR
...tentially very bad thing: after all you were given a read-only pointer and then decided to treat it as writeable: maybe there is a reason it was read-only!
If it is a CString you are working with you have the option to use string.GetBuffer() -- that deliberately gives you a writeable LPTSTR. You th...