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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 - Unexpected name lookup success in specialization of tempalte class with variadic number of base classes"
   href="https://bugs.llvm.org/show_bug.cgi?id=47587">47587</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Unexpected name lookup success in specialization of tempalte class with variadic number of base classes
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </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++17
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>anders.granlund.0@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Consider the following c++ program:

  #include <iostream>

  class A
  {
    protected:
      static constexpr int x = 123;
  };

  template<typename T>
  using B = A;

  template<typename ...T>
  class C : B<T> ...
  {
    public:
      static int f()
      {
        return x;
      }
  };

  int main()
  {
    std::cout << C<>::f() << std::endl;
  }

The name-lookup of x the method f should fail for the specialization C<> of the
template class C, but it does not when compiling with "-std=c++17
-pedantic-errors" (no compilation errros are outputed).</pre>
        </div>
      </p>


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