How to get a sub-array from an existing array in C# without copying? -

my question similar getting sub-array existing array although little different notion important in case - can't use memory copying.

let's have array x of 10000 elements, need array y contains 9000 elements x, starting x's index 500.

but don't want copy part of x new array y, don't want use array.copy, array.clone, system.block.copy, ienumerables etc. want y reference x - y[0] in fact x[500], y[1] corresponds x[501], ..., y[9000] x[9500].

thus, example changing value of x[100] @ same time change value of y[600]. how can achieve in c#?

you wrap in object this:

class view<t> {      private t[] _array;      private long _start;      private long _length;      public view(t[] array, long start, long length) { ... }      public t this[long index]       {                    {              if (/*do bounds check here*/)               {                  return _array[_start + index];              }              }      } } 

this won't array, projection of one.