initialize array with default constructor

Question

Can I initialize an array of classes with an default constructor (or even better, an specified one) without going through a loop?

So, let's say I have an array of Person:

var arr = new Person[10];

Now, I should initialize each Person by looping through all of them.

foreach(var p in arr)
    p = new Person();

Can I avoid the loop?

Take a look at this [answer](http://stackoverflow.com/questions/4839470/array-initialization-with-default-constructor) from @JonSkeet — Cacho Santa, Apr 26 '13 at 18:49
Note that your loop wouldn't compile, but we take your point. (Assigning to the loop variable won't work, you'd need a 'for' loop or something equivalent.) — Anthony Pegram, Apr 26 '13 at 18:51

score 2 · Accepted Answer · answered Apr 26 '13 at 18:52

2

For an arbitrary sized array, you really can't avoid the loop. You can do something like this:

Enumerable.Range(0,10).Select(i=>new Person()).ToArray();

but that uses a loop underneat as well.

answered Apr 26 '13 at 18:52

Eren Ersönmez

score 0 · Answer 2 · edited Apr 26 '13 at 18:55

0

var arr = new Person[] {new Person(),new Person()...};

edited Apr 26 '13 at 18:55

Brian Dishaw

answered Apr 26 '13 at 18:48

Woot4Moo

4

For medium to big arrays, this look even worse than a loop honestly. – Pierre-Luc Pineault Apr 26 '13 at 18:50
1

@Pierre-LucPineault not contesting that, the question was how to avoid the loop. – Woot4Moo Apr 26 '13 at 19:14

2 Answers2