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by skeet via Jon Skeet: Coding Blog on 10/23/2009 9:20:00 PM
The IEnumerable<T> and IEnumerator<T> interfaces in .NET are interesting. They crop up an awful lot, but hardly anyone ever calls them directly - you almost always use a foreach loop to iterate over the collection. That hides all the calls to GetEnumerator(), MoveNext() and Current. Likewise iterator blocks hide the details when you want to implement the interfaces. However, sometimes details matter - such as for this recent Stack Overflow question. The question asks how to create a
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