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      <base href="http://llvm.org/bugs/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Crash with inherited constructor that uses the class's template parameter pack in a template default argument"
   href="http://llvm.org/bugs/show_bug.cgi?id=16975">16975</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Crash with inherited constructor that uses the class's template parameter pack in a template default argument
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C++11
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>sebastian.redl@getdesigned.at
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Have a variadic template class. Give it a templated constructor that uses the
parameter pack in a default argument for SFINAE tricks. Inherit that
constructor in a derived class and use it. Boom!

Tested with tip-of-tree Release+Asserts Clang:
clang -cc1 -fsyntax-only -disable-free -O0 -Werror -std=c++11 -x c++
concat-<a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - Customize Bugzilla to have some LLVM flavah"
   href="show_bug.cgi?id=2">bug2</a>.cpp</pre>
        </div>
      </p>
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