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Checking if a folder exists (and creating folders) in Qt, C++
... How does this answer compare to @Petrucio's answer? I can't deduce this from the docs.
– Jonas G. Drange
Apr 27 '16 at 20:33
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How to get innerHTML of DOMNode?
...on to expect a DOMElement instead of a DOMNode as I was passing the return from DOMDocument::getElementById(). Just in case it trips someone else up.
– miken32
Oct 4 '14 at 22:08
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Cost of storing AMI
...icated" until the instance is launched, at which point a volume is created from the stored snapshots and you'll pay regular EBS volume fees and EBS snapshot billing.
S3-backed AMIs have their information stored in S3 and you will pay storage fees for the data being stored in S3 according to the S3 p...
How to show the loading indicator in the top status bar
...st call ShowNetworkActivityIndicator(); or HideNetworkActivityIndicator(); from within your app (as long as the header is included of course!).
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Stream vs Views vs Iterators
...d, all transformations are re-applied each time you need to fetch elements from it.
Both Iterator and views have excellent memory characteristics. Stream is nice, but, in Scala, its main benefit is writing infinite sequences (particularly sequences recursively defined). One can avoid keeping all of...
Calculating Distance between two Latitude and Longitude GeoCoordinates
...PI;
dist = dist * 60 * 1.1515;
return unitOfLength.ConvertFromMiles(dist);
}
}
public class UnitOfLength
{
public static UnitOfLength Kilometers = new UnitOfLength(1.609344);
public static UnitOfLength NauticalMiles = new UnitOfLength(0.8684);
public static UnitOfLe...
Time complexity of Euclid's Algorithm
...gGidney: Thanks for fixing that. Now I recognize the communication problem from many Wikipedia articles written by pure academics. Consider this: the main reason for talking about number of digits, instead of just writing O(log(min(a,b)) as I did in my comment, is to make things simpler to understa...
How to reverse a singly linked list using only two pointers?
...ginal code worked OK when plugged into your neat test harness. You get +1 from me even so - but an explanation of what you consider the 'obvious errors' would improve your answer.
– Jonathan Leffler
Nov 26 '09 at 5:50
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What is the difference between Class.this and this in Java
...rClass();
...
}
In this example both Innerclass are instantiated from the same Outerclass hence they both have the same reference to the Outerclass.
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Why NSUserDefaults failed to save NSMutableDictionary in iOS?
...k to the object.
It is a little cumbersome, because i need to convert to/from NSData everytime, but it just works.
Here is one example per request:
Save:
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSMutableArray *arr = ... ; // set value
NSData *data = [NSKeyedArchiver ar...