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    <body><span class="vcard"><a class="email" href="mailto:rnk@google.com" title="Reid Kleckner <rnk@google.com>"> <span class="fn">Reid Kleckner</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WORKSFORME - Set a define when using -fms-extensions"
   href="http://llvm.org/bugs/show_bug.cgi?id=19444">bug 19444</a>
        <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">CC</td>
           <td>
                
           </td>
           <td>rnk@google.com
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>WORKSFORME
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WORKSFORME - Set a define when using -fms-extensions"
   href="http://llvm.org/bugs/show_bug.cgi?id=19444#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WORKSFORME - Set a define when using -fms-extensions"
   href="http://llvm.org/bugs/show_bug.cgi?id=19444">bug 19444</a>
              from <span class="vcard"><a class="email" href="mailto:rnk@google.com" title="Reid Kleckner <rnk@google.com>"> <span class="fn">Reid Kleckner</span></a>
</span></b>
        <pre>Look for _MSC_EXTENSIONS:

$ clang++ -fno-ms-extensions -dM -E -x c - < /dev/null | grep MSC_EXT
$ clang++ -fms-extensions -dM -E -x c - < /dev/null | grep MSC_EXT
#define _MSC_EXTENSIONS 1

Clang will turn on -fms-extensions by default when targeting Windows, so that
may have fooled your test.

Also, you can use the C++11 standard keyword 'final' instead of 'sealed', which
is what MSDN recommends:
<a href="http://msdn.microsoft.com/en-us/library/0w2w91tf.aspx">http://msdn.microsoft.com/en-us/library/0w2w91tf.aspx</a>

clang-cl defaults to C++11, since MSVC's C++11 support is enabled by default.</pre>
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