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How can I create a copy of an object in Python?
...good enough for certain purposes. In any case, I will be interested in informative comments on this suggestion.
– Alexey
Feb 21 '18 at 13:13
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How to prevent a dialog from closing when a button is clicked
...mon button handler and prevent the dialog from closing for these different forms of dialogs. All the examples show how to prevent the positive button from closing the dialog.
Note: A description of how the dialog closing works under the hood for the base android classes and why the following approac...
Convert a series of parent-child relationships into a hierarchical tree?
...ugh I find the recursive solution more logical. But I do prefer the output format of your function.
– Eric
May 26 '10 at 20:20
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Mutex example / tutorial? [closed]
...a scoped lock for the advantage it provides. Scoped locks have a slight performance overhead though.
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Why do I need an IoC container as opposed to straightforward DI code? [closed]
...sing the Dependency Injection pattern and the Service Locator pattern. The former is meant to be used instead of the latter. E.g. an object (or indeed the entire system) should never call Resolve(...) to get an instance of IShippingService. The objects that need an IShippingService should receive a ...
What is the best way to use a HashMap in C++?
...iner, almost all implementations include hash_map from the SGI STL in some form or another.
– James McNellis
Aug 26 '10 at 18:27
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What is the purpose of the -m switch?
...gt;):
sys.path is not modified in any way
__name__ is set to the absolute form of <modulename>
__package__ is set to the immediate parent package in <modulename>
__init__.py is evaluated for all packages (including its own for package modules)
__main__.py is not evaluated for package mo...
Why does ReSharper tell me “implicitly captured closure”?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
How efficient is locking an unlocked mutex? What is the cost of a mutex?
... I forgot the context switches... Context switches are too drain on the performance. If lock acquisition fails and thread has to wait, that is too sort of half of the context switch. CS itself is fast, but since CPU might be used by some other process, the caches would be filled with alien data. Aft...
Is there a MySQL option/feature to track history of changes to records?
...This table will have an entry for each insert, update, and delete query performed on each row in the data table.
The structure of the history table will be the same as the data table it tracks except for three additional columns: a column to store the operation that occured (let's call it 'action'...