Does multidimensional array enumerator guarantee the same order for all implementations?

Question

Will this always print elements in the same order on all platforms?

foreach (var el in multidimArray) Console.WriteLine(el);

I'm looking for a quote from the specifications or anything official.

Answer 1

Yes, the enumeration order of built-in arrays is well-defined and platform-independent.

See the relevant part of the C# Specification (8.8.4 The foreach statement):

The order in which foreach traverses the elements of an array, is as follows:

• For single-dimensional arrays elements are traversed in increasing index order, starting with index 0 and ending with index Length – 1.
• For multi-dimensional arrays, elements are traversed such that the indices of the rightmost dimension are increased first, then the next left dimension, and so on to the left.