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In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
...ins:
__autoreleasing to denote arguments that are passed by reference (id *) and are autoreleased on return.
All of this is very well explained in the ARC transition guide.
In your NSError example, the declaration means __strong, implicitly:
NSError * e = nil;
Will be transformed to:
NSEr...
SQL, Postgres OIDs, What are they and why are they useful?
...
OIDs basically give you a built-in id for every row, contained in a system column (as opposed to a user-space column). That's handy for tables where you don't have a primary key, have duplicate rows, etc. For example, if you...
How to display HTML in TextView?
...o comes with some margin. if you don't want the gap, you might want to consider using other html elements.
– David Hedlund
Jan 22 '10 at 10:58
10
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How to force the browser to reload cached CSS/JS files?
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Update: Rewritten to incorporate suggestions from John Millikin and da5id. This solution is written in PHP, but should be easily adapted to other languages.
Update 2: Incorporating comments from Nick Johnson that the original .htaccess regex can cause problems with files like json-1.3.js. Solu...
Count work days between two dates
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For workdays, Monday to Friday, you can do it with a single SELECT, like this:
DECLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = '2008/10/01'
SET @EndDate = '2008/10/31'
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) + 1)
-(DA...
How often does python flush to a file?
...l io.DEFAULT_BUFFER_SIZE of 8192. Is that a Python bug, a Linux bug, or an ID10t bug?
– Bruno Bronosky
Dec 1 '17 at 17:00
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What is the most efficient way to create a dictionary of two pandas Dataframe columns?
...taFrame({'Position':[1,2,4,4,4], 'Letter':['a', 'b', 'd', 'e', 'f']})
for idx,row in df.iterrows():
multivalue_dict[row['Position']].append(row['Letter'])
[out]:
>>> print(multivalue_dict)
defaultdict(list, {1: ['a'], 2: ['b'], 4: ['d', 'e', 'f']})
...
Why Doesn't C# Allow Static Methods to Implement an Interface?
...uming you are asking why you can't do this:
public interface IFoo {
void Bar();
}
public class Foo: IFoo {
public static void Bar() {}
}
This doesn't make sense to me, semantically. Methods specified on an interface should be there to specify the contract for interacting with an object....
“From View Controller” disappears using UIViewControllerContextTransitioning
...ss when trying to add subviews to my navigation controller's view, in viewDidLoad. Re-adding the navigationController's view to the keyWindow seemed to do the trick, thanks a lot, Ash!
– taber
Jul 9 '14 at 3:26
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Why is my Git Submodule HEAD detached from master?
...
EDIT:
See @Simba Answer for valid solution
submodule.<name>.update is what you want to change, see the docs - default checkout
submodule.<name>.branch specify remote branch to be tracked - default master
OLD ANSWER:
Personally I h...