initialize array with default constructor [duplicate]

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?

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
– Anthony Pegram, Commented Apr 26, 2013 at 18:51

Eren Ersönmez · Accepted Answer · 2013-04-26 18:52:28Z

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, 2013 at 18:52

Eren Ersönmez

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Comments

Brian Dishaw · Accepted Answer · 2013-04-26 18:55:56Z

0

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

Brian Dishaw

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answered Apr 26, 2013 at 18:48

Woot4Moo

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For medium to big arrays, this look even worse than a loop honestly.

@Pierre-LucPineault not contesting that, the question was how to avoid the loop.