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Batch files - number of command line arguments
Just converting some shell scripts into batch files and there is one thing I can't seem to find...and that is a simple count of the number of command line arguments.
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AsyncTask and error handling on Android
I'm converting my code from using Handler to AsyncTask . The latter is great at what it does - asynchronous updates and handling of results in the main UI thread. What's unclear to me is how to handle exceptions if something goes haywire in AsyncTask#doInBackground .
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How do I specify the platform for MSBuild?
...ild a solution with a specified target platform (I need both binaries, x86 and x64). This is how I tried it:
5 Answers
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How to resize images proportionally / keeping the aspect ratio?
I have images that will be quite big in dimension and I want to shrink them down with jQuery while keeping the proportions constrained, i.e. the same aspect ratio.
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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)
I understand that in Swift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially.
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Is there an easy way to return a string repeated X number of times?
...t a certain number of indentations before a string based on an items depth and I'm wondering if there is a way to return a string repeated X times. Example:
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Is it possible to change a UIButtons background color?
...s until a web service responds. Must I change to highlight colour on press and have a timer change to disabled colour while waiting for the ws to respond? If I am missing the point can someone please explain. Thanks Polly.
– Polly
Aug 11 '12 at 11:05
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Calling virtual functions inside constructors
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Calling virtual functions from a constructor or destructor is dangerous and should be avoided whenever possible. All C++ implementations should call the version of the function defined at the level of the hierarchy in the current constructor and no further.
The C++ FAQ Lite covers this in sectio...
Creating an instance using the class name and calling constructor
...to create an instance of a particular class given the class name (dynamic) and pass parameters to its constructor.
10 Answe...
Which exception should I raise on bad/illegal argument combinations in Python?
...tion..
def import_to_orm(name, save=False, recurse=False):
if recurse and not save:
raise ValueError("save must be True if recurse is True")
There's really no point in doing class BadValueError(ValueError):pass - your custom class is identical in use to ValueError, so why not use that...