<html>
    <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 --- - Functions with non-tautological enable_if conditions shouldn't be assignable to references"
   href="https://llvm.org/bugs/show_bug.cgi?id=31934">31934</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Functions with non-tautological enable_if conditions shouldn't be assignable to references
          </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>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++
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>george.burgess.iv@gmail.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>george.burgess.iv@gmail.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>This behavior is good:

$ echo 'void foo(void) __attribute__((enable_if(false, ""))); void (*f)(void) =
foo;' | $clangpp -x c++ -o/dev/null -

error: cannot take address of function 'foo' because it has one or more
non-tautological enable_if conditions
$


This behavior is bad:

$ echo 'void foo(void) __attribute__((enable_if(false, ""))); void (&f)(void) =
foo;' | $clangpp -x c++ -o/dev/null -

$


...The difference being that we use *f in the good example, but &f in the bad.</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>