<html>
    <head>
      <base href="http://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 --- - std::pow<double, double> fails compilation"
   href="http://llvm.org/bugs/show_bug.cgi?id=22486">22486</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>std::pow<double, double> fails compilation
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libc++
          </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>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>All Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>eugeni.stepanov@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu, mclow.lists@gmail.com
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>#include <cmath>
auto x = std::pow<double, double>;

The above fails with:

In file included from ../8.cc:1:
/code/llvm/build/bin/../include/c++/v1/cmath:964:5: error: static_assert failed
""
    static_assert((!(is_same<_A1, __result_type>::value &&
    ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../8.cc:3:15: note: in instantiation of function template specialization
'std::__1::pow<double, double>' requested here
auto x = std::pow<double, double>;


Basically, it is saying that at least one of the argument types must be
different from the result type. Is it correct?

    typedef typename __promote<_A1, _A2>::type __result_type;
    static_assert((!(is_same<_A1, __result_type>::value &&
                      is_same<_A2, __result_type>::value)), "")</pre>
        </div>
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