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    <body><span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED INVALID - default template argument privacy"
   href="http://llvm.org/bugs/show_bug.cgi?id=18079">bug 18079</a>
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             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
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         <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>richard-llvm@metafoo.co.uk
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           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>INVALID
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED INVALID - default template argument privacy"
   href="http://llvm.org/bugs/show_bug.cgi?id=18079#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED INVALID - default template argument privacy"
   href="http://llvm.org/bugs/show_bug.cgi?id=18079">bug 18079</a>
              from <span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span></b>
        <pre>(In reply to <a href="show_bug.cgi?id=18079#c0">comment #0</a>)
<span class="quote">> Which is correct? Since Clang differs from the two major implementations, my
> guess would be that Clang was in the wrong, but I don't really know how to
> read the C++ spec to be sure...</span >

MSVC is not known for its conformance, and in this case, it and GCC are wrong.
EDG agrees with Clang.

[class.access](11)/9:

"The names in a default template-argument (14.1) have their access checked in
the context in which they appear rather than at any points of use of the
default template-argument."

(Followed by an example that is nearly an exact match of yours.)</pre>
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