fill an array in C# [duplicate]

Question

In Java there are about 18 a static "fill" methods in the class Arrays that serve to assign one value to each element in an array. I'm looking for an equivalent in C# to achieve the same thing but I'm not finding anything with the same compactness:

1) ForEach as I understand passes elements in the array by value so I can't change them

2) Repeat from Enumerable creates a new array, it seems to be overhead to create a new array and then copy each element from the array

3) a for-loop isn't pretty, which I guess is why the Java folks introduced this compact notation to begin with

4) The Clear method from the Array class can set everything to zero, but then how do I convert zero to the non-zero value I want?

To demonstrate Java's syntax consider this code that prints three times the number 7:

int[] iii = {1, 2, 3}; Arrays.fill(iii, 7); for (int i : iii) {     System.out.println(i); } 

Answer 1

int[] arr = Enumerable.Repeat(42, 10000).ToArray(); 

I believe that this does the job :)

Answer 2

Write yourself an extension method

public static class ArrayExtensions {     public static void Fill<T>(this T[] originalArray, T with) {         for(int i = 0; i < originalArray.Length; i++){             originalArray[i] = with;         }     }   } 

and use it like

int foo[] = new int[]{0,0,0,0,0}; foo.Fill(13); 

will fill all the elements with 13