I've got a question about the order in
, does not matter).
As we know, iterating through IEnumerable is pseudo-code can be written in the following way:
object obj = enumerable.Current;
Now, assume, that one needs to operate on a sorted
collection. Can IEnumerable be used in this case or is it better to try other means (i.e.
) with indexation support?
In other words: does the contract of
make any guarantees about the order in general?
is not a proper mean for a generic interface that guarantees ordering. The new question is what interface or class should
be used for an immutable collection with order?
? Both of them contain
method (even is not implemented in the former one.) Any suggestions?
P.S My own thoughts:
does not provide any guarantees about the ordering. The correct implementation could return same elements in different order in different enumerations(consider a SQL query)
P.P.S. I am aware of LINQ
, but if
does not say a word about it's ordering, this extension is pretty useless.