<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Diagnose local class with template member"
   href="http://llvm.org/bugs/show_bug.cgi?id=16947">16947</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Diagnose local class with template member
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </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>Frontend
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>paul_robinson@playstation.sony.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Clang does not diagnose a local class with a template member.
gcc does.

$ cat test.cpp
int test() {
  class A {
    template<typename T> class B {
      T t;
    };
  };
  return 0;
}
$ clang -c test.cpp
$ gcc -c test.cpp
test.cpp: In function 'int test()':
test.cpp:3:5: error: invalid declaration of member template in local class
$

[temp.mem]p2 seems clear: "A local class shall not have member templates."</pre>
        </div>
      </p>
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