StackOverflow2013

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17096796
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2013-06-13T20:47:37.600
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2013-06-13T21:26:55.003
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2013-06-13T21:26:55.003
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908494
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17055767
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2
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I don't think the code you've shown us exhibits the problem you're asking about. I made minimal changes to get past the earlier compiler errors, so I could get to the point where I could reproduce your problem. But, having done so, your problem does not exist. Here are my changes: <ul> <li>Add <code>#include <list></code>.</li> <li>Replace each instance of <code>iterator</code> with <code>typename Container::iterator</code></li> <li>Make <code>Container</code> inherit from <code>list</code> publicly instead of privately, so I get access to its <code>iterator</code> type.</li> </ul> You can try adding them one by one to see what errors each one solves—none of them have anything to do with your problem. Or you can <a href="http://pastebin.com/j452zHrp" rel="nofollow">download the code</a> and compile it yourself. I compiled this with a three different compilers, clang-4.2, g++-4.6, and g++-4.2-apple; in both C++11 and C++98 modes where appropriate; with -Wall enabled. In all cases, it compiled without any errors or warnings. Also I don't see how the referenced line could have the error you described. It doesn't matter whether <code>T</code> or <code>C</code> are incomplete, because all you do is: <ul> <li><code>static_cast</code> a <code>T *</code> to a <code>Proxy *</code>, which only requires having <code>T</code> declared, not defined.</li> <li>Access a member of a <code>Proxy</code>, which does not depend in any way on type <code>T</code>.</li> <li>Set a <code>C *</code> to NULL, which only requires having <code>C</code> declared, not defined.</li> </ul> The previous line depends on calling <code>operator *</code> on an <code>iterator</code>, and that's apparently a custom class of your that might be dependent on <code>T</code> or <code>C</code> in some way, but that couldn't possibly cause an error on the next line. So, there are a few possibilities: <ul> <li>The error is not the error your described, nor is it on the line you described, and the problem is in either the <code>iterator</code> class or the <code>list</code> class that you didn't show us.</li> <li>The code you've shown us is so different from your real code that it no longer has even a trace of the part that causes a problem.</li> <li>My trivial changes aren't as trivial as I thought and somehow fixed your problem.</li> </ul>
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