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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 - statically recognizable type-errors result in broken binaries (?)"
   href="https://bugs.llvm.org/show_bug.cgi?id=49375">49375</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>statically recognizable type-errors result in broken binaries (?)
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>C++11
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>heiko.lewin@worldiety.de
          </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>The following program compiles to a binary where the float is handled before
the int member. VC++ recognizes the error of print() taking rvalue references.
gcc yields the same result clang.

I think such errors should be caught. see <a href="https://gcc.godbolt.org/z/G4ddao">https://gcc.godbolt.org/z/G4ddao</a>



struct Test {
   int m_x;
   float m_y;

   template<class Callable>
   void withMembers(Callable&& callable) {
     callable(m_x, m_y);
   }
};


extern void print(int&&i);
extern void print(float&&i);

int notmain()
{
    Test t{ .m_x=1, .m_y=2.0f};

    t.withMembers([](const auto&... args){
        (  print(args), ...);
    });
    return t.m_x;
}</pre>
        </div>
      </p>


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