Return a subset of Array using index C#
What is the best way to return a subset of a C# array given a fromIndex and toIndex?开发者_开发知识库
Obviously I can use a loop but are there other approaches?
This is the method signature I am looking to fill.
public static FixedSizeList<T> FromExisting(FixedSizeList<T> fixedSizeList, Int32 fromIndex, Int32 toIndex)
FixedSizeList internal implementation is
private T[] _Array;
this._Array = new T[size];
myArray.Skip(fromIndex).Take(toIndex - fromIndex + 1);
EDIT: The result of Skip and Take are IEnumerable and the count will be zero until you actually use it.
if you try
int[] myArray = {1, 2, 3, 4, 5};
int[] subset = myArray.Skip(2).Take(2).ToArray();
subset will be {3, 4}
List Already has a CopyTo
Method which should do what you want.
http://msdn.microsoft.com/en-us/library/3eb2b9x8.aspx
This is the Signature of the method:
public void CopyTo( int index, T[] array, int arrayIndex, int count )
Array.Copy
will do what you want.
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