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How can I extend typed Arrays in Swift?
... For example, sorting a typed array:
class HighScoreEntry {
let score:Int
}
extension Array where Element == HighScoreEntry {
func sort() -> [HighScoreEntry] {
return sort { $0.score < $1.score }
}
}
Trying to do this with a struct or typealias will give an error:
Type '...
How to add multiple columns to a table in Postgres?
...
Try this :
ALTER TABLE table ADD COLUMN col1 int, ADD COLUMN col2 int;
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Why isn't std::initializer_list a language built-in?
...ed in the std namespace. typeid returns std::type_info and (stretching a point perhaps) sizeof returns std::size_t.
In the former case, you already need to include a standard header in order to use this so-called "core language" feature.
Now, for initializer lists it happens that no keyword is nee...
How to increase the Java stack size?
... static void main(String[] args) {
try {
System.out.println(fact(1 << 15));
}
catch (StackOverflowError e) {
System.err.println("true recursion level was " + level);
System.err.println("reported recursion level was " +
...
Can gcc output C code after preprocessing?
...o have in mind:
gcc -save-temps -c -o main.o main.c
main.c
#define INC 1
int myfunc(int i) {
return i + INC;
}
and now, besides the normal output main.o, the current working directory also contains the following files:
main.i is the desired prepossessed file containing:
# 1 "main.c"
# 1 "<...
Update ViewPager dynamically?
...tiateItem() at all. The instantiateItem()-destroyItem()-isViewFromObject() interface on PagerAdapter is a lower-level interface that FragmentPagerAdapter uses to implement the much simpler getItem() interface.
Before getting into this, I should clarify that
if you want to switch out the actual...
Does Swift have documentation generation support?
...yntax for rich playground comments & symbol documentation; these are pointed out in the document (e.g. block quotes can only be used in playgrounds).
Below is an example and a list of the syntax elements that currently work for symbol documentation comments.
Updates
Xcode 7 beta 4 ~ Added "...
When is a function too long? [closed]
... data, then writing it to disk then I'd split out the grabbing and writing into separate methods so my "main" method just contains the "doing something".
That "doing something" could still be quite a few lines though, so I'm not sure a number of lines is the right metric to be using :)
Edit: This ...
What is the logic behind the “using” keyword in C++?
...or type alias is identical to typedef.
7.1.3.2
A typedef-name can also be introduced by an alias-declaration. The
identifier following the using keyword becomes a typedef-name and the
optional attribute-specifier-seq following the identifier appertains
to that typedef-name. It has the same semantic...
Android update activity UI from service
...erence to the Service, thus allowing direct calls on it, rather
than using Intents.
Use RxJava to execute asynchronous operations.
If the Service needs to continue background operations even when no
Activity is running, also start the service from the Application
class so that it does not get stoppe...