Question

Possible Duplicate:
Auto-Initializing C# Lists

I have a list of integers that has a certain capacity that I would like to automatically fill when declared.

List<int> x = new List<int>(10);

Is there an easier way to fill this list with 10 ints that have the default value for an int rather than looping through and adding the items?

Answer 1

Well, you can ask LINQ to do the looping for you:

List<int> x = Enumerable.Repeat(value, count).ToList();

It’s unclear whether by “default value” you mean 0 or a custom default value.

You can make this slightly more efficient (in execution time; it’s worse in memory) by creating an array:

List<int> x = new List<int>(new int[count]);

That will do a block copy from the array into the list, which will probably be more efficient than the looping required by ToList.