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POReusing an IEnumerable<T> results in false result, e.g. on .Any()
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copied!<p>I'm a little lost in deferred execution land:</p> <p>I declare an instance of an IEnumerable implementing class</p> <pre><code>var wordEnumerable = new WordEnumerable(_text); </code></pre> <p>Then I iterate over it (the first word is "Lorem")</p> <pre><code>foreach (var word in wordEnumerable) Console.WriteLine(word); </code></pre> <p>.. which is written to the console.</p> <p>Now right thereafter in code I do a</p> <pre><code>Console.WriteLine(wordEnumerable.Any(w => w == "Lorem")); </code></pre> <p>.. and get a False as output.</p> <p>Now If I put the .Any(..) part above the foreach loop I do get a true, however the loop does start with the second word.</p> <p>My <em>expectation</em> was that .Net creates different runtime 'contexts' for each call to an IEnumerable and its underlying IEnumerator so they don't interfere... I wouldn't want to .Reset() it by hand in order to get a proper result?</p> <p>What am I missing here?</p> <p><strong>Update</strong>:</p> <ul> <li>Link to IEnumerable implementation: <a href="https://gist.github.com/814352" rel="nofollow">https://gist.github.com/814352</a></li> <li>Link to IEnumerator implementation: <a href="https://gist.github.com/814354" rel="nofollow">https://gist.github.com/814354</a></li> <li>.. and finally the underlying text parser implementation: <a href="https://gist.github.com/814358" rel="nofollow">https://gist.github.com/814358</a></li> </ul> <p>.. It is basically an IEnumerable that allows me to iterate over the words within a given string.</p>

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