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      <base href="https://llvm.org/bugs/" />
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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW " title="NEW --- - Misleading diagnostics when template being specialized is ambiguous" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24242&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=GQuIvfhS-4WhgrVL9I_DwmirAzdOuggBLL7fwgQKZGQ&s=Q4HCNsmLHQvuM7Z76D6LPUWriVeHXbZK9br2El-xYf0&e=">24242</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Misleading diagnostics when template being specialized is ambiguous
          </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++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>rs2740@gmail.com
          </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>Consider:

namespace A {
    inline namespace B { template<class> struct C; }
    template<class> struct C;
    template<> struct C<int>{};
}

Name lookup for `C` is obviously ambiguous, but the resulting error message
doesn't mention that at all:

prog.cc:4:23: error: explicit specialization of non-template struct 'C'
    template<> struct C<int>{};
                      ^~~~~~
prog.cc:4:23: error: redefinition of 'C' as different kind of symbol
prog.cc:3:28: note: previous definition is here
    template<class> struct C;
                           ^
2 errors generated.</pre>
        </div>
      </p>
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