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    <head>
      <base href="https://bugs.llvm.org/">
    </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 - deleted friend of template class conflicts with its own definition"
   href="https://bugs.llvm.org/show_bug.cgi?id=40150">40150</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>deleted friend of template class conflicts with its own definition
          </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>Windows NT
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </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>Casey@Carter.net
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>This correct TU:

    template<class>
    struct S {
        friend void operator|(int, const S&) = delete;
    };

    S<void> s;

is rejected by "clang++ -std=c++2a" (<a href="https://godbolt.org/z/Du4mGf">https://godbolt.org/z/Du4mGf</a>) with
diagnostics:

    <source>:3:17: error: redefinition of 'operator|'
        friend void operator|(int, const S&) = delete;
                    ^
    <source>:6:9: note: in instantiation of template class 'S<void>' requested
here
    S<void> s;
            ^
    <source>:3:17: note: previous definition is here
        friend void operator|(int, const S&) = delete;
                    ^
    1 error generated.</pre>
        </div>
      </p>


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