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Unicode equivalents for \w and \b in Java regular expressions?
...cter class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
...
What does multicore assembly language look like?
...on, but it's an answer to a question that appears in the comments. Essentially, the question is what support the hardware gives to multi-threaded operation.
Nicholas Flynt had it right, at least regarding x86. In a multi threaded environment (Hyper-threading, multi-core or multi-processor), the B...
How does std::forward work? [duplicate]
...d as possible and explain when std::forward would be incorrect if it was allowed to use template argument deduction.
3 An...
Can you nest html forms?
... I agree with the answer, but to ask another, why not? Why does HTML not allow for nesting forms? To me, it appears to be a limitation that we would be better off without. There are many examples where using nested forms would be easier to program (i.e. using an upload photo form with a profile ed...
JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
...
This problem stems from an improper Java installation.
Possibility 1
NOTE: This scenario only applies to Java 8 and prior. Beginning with Java 9, the JRE is structured differently. rt.jar and friends no longer exist, and Pack200 is no longer used.
The Java standa...
How is Math.Pow() implemented in .NET Framework?
...rsion from Henry Warren's Hacker's Delight:
public static int iexp(int a, uint b) {
int y = 1;
while(true) {
if ((b & 1) != 0) y = a*y;
b = b >> 1;
if (b == 0) return y;
a *= a;
}
}
He notes that this operation is optimal (does the minimu...
Are Swift variables atomic?
... you, i.e.:
class Car {
static let sharedCar: Car = Car() // will be called inside of dispatch_once
}
private let sharedCar: Car2 = Car2() // same here
class Car2 {
}
Update 05/25/16: Keep an eye out for swift evolution proposal https://github.com/apple/swift-evolution/blob/master/proposals...
How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
On POSIX systems, termination signals usually have the following order (according to many MAN pages and the POSIX Spec):
6 ...
How do I declare an array of weak references in Swift?
...Code can be grabbed from Gist.
https://gist.github.com/codelynx/30d3c42a833321f17d39
** ADDED IN NOV.2017
I updated the code to Swift 4
// Swift 4, Xcode Version 9.1 (9B55)
class WeakObject<T: AnyObject>: Equatable, Hashable {
weak var object: T?
init(object: T) {
self.obje...
ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
...
The ContentList's Set method will not get called when you change a value inside the collection, instead you should be looking out for the CollectionChanged event firing.
public class CollectionViewModel : ViewModelBase
{
public ObservableCollection<E...