<html>
    <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 "address of overloaded function 'f' is ambiguous" error for overloaded variadic template"
   href="https://bugs.llvm.org/show_bug.cgi?id=48260">48260</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Unexpected "address of overloaded function 'f' is ambiguous" error for overloaded variadic template
          </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++11
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>dphoyes@gmail.com
          </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 successfully on GCC and MSVC:


template<typename X, typename... Y>
void f(X&&, Y&&...)
{
}

template<typename X>
void f(X&&, const double&)
{
}

int main()
{
    void(*fptr)(const int&, const double&) = &f;
}


Using Clang (<a href="https://godbolt.org/z/5jE18P">https://godbolt.org/z/5jE18P</a>) we get:

<source>:13:46: error: address of overloaded function 'f' is ambiguous
    void(*fptr)(const int&, const double&) = &f;
                                             ^

This seems to affect all Clang versions. Tested on trunk, 11.0.0 and 3.0.0.</pre>
        </div>
      </p>


      <hr>
      <span>You are receiving this mail because:</span>

      <ul>
          <li>You are on the CC list for the bug.</li>
      </ul>
    </body>
</html>