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Is it possible to allow didSet to be called during initialization in Swift?
...ample:
public class MyNewType: NSObject {
public var myRequiredField:Int
public var myOptionalField:Float? {
willSet {
if let newValue = newValue {
print("I'm going to change to \(newValue)")
}
}
didSet {
if let m...
How to add url parameters to Django template url tag?
...
Doesn't this result in the trailing slash interrupting the url, like example.com/myview/?office=foobar instead of example.com/myview?office=foobar?
– Al Sweigart
May 12 '17 at 2:27
...
Can a C# class inherit attributes from its interface?
...
No. Whenever implementing an interface or overriding members in a derived class, you need to re-declare the attributes.
If you only care about ComponentModel (not direct reflection), there is a way ([AttributeProvider]) of suggesting attributes from an ...
Image comparison - fast algorithm
...ne of 6 buckets between 0 and PI (since edges have 180-degree symmetry, we converted angles between -PI and 0 to be between 0 and PI). After tallying up the number of edge points in each direction, we have an un-normalized histogram representing texture direction, which we normalized by dividing ea...
Structs versus classes
...e because the stack is an implementation detail. The jitter is allowed to introduce optimizations that, say, enregister what would normally be a stack value, and then it's never on the stack so the GC doesn't know that it is still alive. An enregistered object can have its descendents collected agg...
How can I make my own event in C#?
...Class
{
public event MyEventHandler OnMaximum;
private int i;
private int Maximum = 10;
public int MyValue
{
get
{
return i;
}
set
{
if(value <= Maximum)
...
Checking if an object is a given type in Swift
...to the else clause. Without the ? else would never be entered and as you pointed out cause a runtime error. Thanks again.
– Unheilig
Jun 7 '14 at 0:00
...
UIPanGestureRecognizer - Only vertical or horizontal
...gnizerShouldBegin:(UIPanGestureRecognizer *)panGestureRecognizer {
CGPoint velocity = [panGestureRecognizer velocityInView:someView];
return fabs(velocity.y) > fabs(velocity.x);
}
And for Swift:
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIPanGestureRecognizer) -> Bool {...
Is bool a native C type?
...ros from stdbool.h.
Note, BTW, that this implies that C preprocessor will interpret #if true as #if 0 unless stdbool.h is included. Meanwhile, C++ preprocessor is required to natively recognize true as a language literal.
s...
“PKIX path building failed” and “unable to find valid certification path to requested target”
...6)\Java\jre1.6.0_22\lib\security\cacerts.
Next import the example.cer file into cacerts in command line:
keytool -import -alias example -keystore C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts -file example.cer
You will be asked for password which default is changeit
Restart your...