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Operator overloading : member function vs. non-member function?
... as member function is asymmetric because it can have only one parameter and the other parameter passed automatically is the this pointer. So no standard exists to compare them. On the other hand, overloaded operator declared as a friend is symmetric because we pass two arguments of the same...
Android multiple email attachments using Intent
...rrayList
ArrayList<Uri> uris = new ArrayList<Uri>();
//convert from paths to Android friendly Parcelable Uri's
for (String file : filePaths)
{
File fileIn = new File(file);
Uri u = Uri.fromFile(fileIn);
uris.add(u);
}
emailIntent.putParcela...
SQL is null and = null [duplicate]
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In SQL, a comparison between a null value and any other value (including another null) using a comparison operator (eg =, !=, <, etc) will result in a null, which is considered as false for the purposes of a where clause (strictly speaking, it's "not true", rather...
UITapGestureRecognizer breaks UITableView didSelectRowAtIndexPath
... in question, then you can directly compare its class instead of having to convert to a string and hope Apple doesn't change the nomenclature:
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
shouldReceiveTouch:(UITouch *)touch
{
if([touch.view class] == tableview.class)...
Func delegate with no return type
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.NET 2 also had (or has) a delegate type Converter<TInput, TOutput> which was like the later Func<T, TResult>. It was used in the List<>.ConvertAll method which projected every element in a List<> onto another object, and placed all the "func...
Check if a class is derived from a generic class
...on avoids the unnecessary recursion performance hit also. It's an elegant and beautiful solution to a meta-generic question.
– EnocNRoll - AnandaGopal Pardue
Jan 19 '09 at 18:26
2...
How to find out if a Python object is a string?
...to_test, str)
This follows the fix of the official 2to3 conversion tool: converting basestring to str.
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Progress indicator during pandas operations
I regularly perform pandas operations on data frames in excess of 15 million or so rows and I'd love to have access to a progress indicator for particular operations.
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Color text in terminal applications in UNIX [duplicate]
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printf(KMAG "magenta\n"); is much cleaner and faster than using %s.
– user142019
Feb 26 '11 at 12:43
13
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Best way to parseDouble with comma as decimal separator?
... just use French format, a number in Spanish format (1.222.222,33) will be converted to "1 222 222,33", which is not what I want. So thanks!
– WesternGun
Mar 30 '17 at 14:55
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