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Is it possible to make a type only movable and not copyable?
... the marker types is preferred if the destructor is doing nothing.
Types now move by default, that is, when you define a new type it doesn't implement Copy unless you explicitly implement it for your type:
struct Triplet {
one: i32,
two: i32,
three: i32
}
impl Copy for Triplet {} // a...
What is the best way to solve an Objective-C namespace collision?
...er classes in that first framework which reference the renamed class would now reference the class from the other framework.
You wouldn't need to copy or rename a class if there were a way to copy the data pointed to by an IMP. You could create a new class and then copy over ivars, methods, propert...
LINQ to SQL Left Outer Join
... matches only 0-1. To do a left outer join, you need SelectMany and DefaultIfEmpty, for example:
var query = from c in db.Customers
join o in db.Orders
on c.CustomerID equals o.CustomerID into sr
from x in sr.DefaultIfEmpty()
select new {
...
Can I change multiplier property for NSLayoutConstraint?
...
If you have only have two sets of multipliers that need to be applied, from iOS8 onwards you can add both sets of constraints and decide which should be active at any time:
NSLayoutConstraint *standardConstraint, *zoomedCons...
windowSoftInputMode=“adjustResize” not working with translucent action/navbar
...call through to FrameLayout's
* implementation.
*
* For reasons yet unknown, modifying the bottom inset causes this workaround to
* fail. Modifying the top, left, and right insets works as expected.
*/
public final class CustomInsetsFrameLayout extends FrameLayout {
private int[] mInsets =...
How to filter None's out of List[Option]?
If I have a List[Option[A]] in Scala, what is the idiomatic way to filter out the None values?
3 Answers
...
Create Generic method constraining T to an Enum
...None -> defaultValue
This one is easier to maintain since it's a well-known language with full Visual Studio IDE support, but you still need a separate project in your solution for it. However, it naturally produces considerably different IL (the code is very different) and it relies on the FSha...
Getting current device language in iOS?
...he currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (United States). In order to retrieve the currently selected language, you can do:
NSString * language = [[NSLocale preferredLanguag...
Is a colon `:` safe for friendly-URL use?
We are designing a URL system that will specify application sections as words separated by slashes. Specifically, this is in GWT, so the relevant parts of the URL will be in the hash (which will be interpreted by a controller layer on the client-side):
...
How to create a checkbox with a clickable label?
...
If someone can explain the comment @John left please do, because it makes no sense at all to me.
– Wesley Murch
Jul 30 '15 at 13:45
...