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How do I shuffle an array in Swift?
...) in zip(indices, stride(from: c, to: 1, by: -1)) {
// Change `Int` in the next line to `IndexDistance` in < Swift 4.1
let d: Int = numericCast(arc4random_uniform(numericCast(unshuffledCount)))
let i = index(firstUnshuffled, offsetBy: d)
swapAt(firs...
When to use Comparable and Comparator
...s are every future sorting use case would require a comparator, at which point the implementation of comparable may slow down users of the class, not speed them up.
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Is there a way to access an iteration-counter in Java's for-each loop?
...n provide your own counter.
The reason for this is that the for-each loop internally does not have a counter; it is based on the Iterable interface, i.e. it uses an Iterator to loop through the "collection" - which may not be a collection at all, and may in fact be something not at all based on ind...
How do you make a HTTP request with C++?
...ee if it contains a 1 or a 0. Is it also possible to download the contents into a string?
22 Answers
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Select multiple images from android gallery
... but i'm not satisfied with the answers. Mainly because i found something interesting in de docs in my IDE (i come back on this later) and thereby i don't want to use a custom adapter but just the vanilla one.
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Why should I not include cpp files and instead use a header?
... same as any other. However, although not illegal, including source files into your program will pretty much eliminate any advantages you would've got from separating your source files in the first place.
Essentially, what #include does is tell the preprocessor to take the entire file you've speci...
function declaration isn't a prototype
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In C int foo() and int foo(void) are different functions. int foo() accepts an arbitrary number of arguments, while int foo(void) accepts 0 arguments. In C++ they mean the same thing. I suggest that you use void consistently when ...
Get/pick an image from Android's built-in Gallery app programmatically
...eActivity extends Activity {
// this is the action code we use in our intent,
// this way we know we're looking at the response from our own action
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
public void onCreate(Bundle savedInstanceState) {...
Does hosts file exist on the iPhone? How to change it? [closed]
...'t work. Then i tried to change encoding settings, and got it! You have to convert your host file to ANSI in Notepad++ before you save it. For whom failed to get the host file working; click "Convert to ANSI" under "Encoding" menu.
– trkaplan
Sep 26 '10 at 12:1...
Find index of a value in an array
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int keyIndex = Array.FindIndex(words, w => w.IsKey);
That actually gets you the integer index and not the object, regardless of what custom class you have created
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