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    <head>
      <base href="https://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 --- - -Wnon-virtual-dtor should not trigger if the base class has a protected destructor"
   href="https://llvm.org/bugs/show_bug.cgi?id=25258">25258</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>-Wnon-virtual-dtor should not trigger if the base class has a protected destructor
          </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>Linux
          </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++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>klimek@google.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>struct A { virtual void a(); protected: ~A() = default; };
struct B : public A { void a() override; };

/tmp/t.cc:2:8: warning: 'B' has virtual functions but non-virtual destructor
[-Wnon-virtual-dtor]
struct B : public A { void a() override; };
       ^
1 warning generated.

As there is no way to destruct a B object through an A pointer, this should be
allowed.</pre>
        </div>
      </p>
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