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<tr><td class="label"><a name="id20">[9]</a></td><td>C++ Standard Library Active Issues List (Revision 27), 
Item 226, <a class="reference" href="http://gcc.gnu.org/onlinedocs/libstdc++/ext/lwg-active.html#226">User supplied specializations or overloads of namespace std function templates</a>.</td></tr>
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