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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 - Clang does not diagnose calls to non-constexpr member functions from constexpr member functions"
   href="https://bugs.llvm.org/show_bug.cgi?id=35539">35539</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Clang does not diagnose calls to non-constexpr member functions from constexpr member functions
          </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>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Frontend
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>lebedev.ri@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Not sure if this is a gcc or clang problem.

struct A {
  void b(){}
  constexpr void c(){b();}
};

With -std=c++14, clang trunk compiles it just fine, and gcc trunk does not:
<source>: In member function 'constexpr void A::c()':
3 : <source>:3:23: error: call to non-'constexpr' function 'void A::b()'
   constexpr void c(){b();}
                      ~^~
Compiler exited with result code 1

<a href="https://godbolt.org/g/E9cioD">https://godbolt.org/g/E9cioD</a></pre>
        </div>
      </p>


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