<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 --- - cannot perform | on std::launch"
   href="http://llvm.org/bugs/show_bug.cgi?id=16207">16207</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>cannot perform | on std::launch
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Macintosh
          </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>All Bugs
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>hhinnant@apple.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>akim.demaille@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The following piece of code does not run, although it is my understanding in
c++11 that this be a valid argument for std::async.

$ cat launch.cc
#include <future>

int main()
{
  auto l = std::launch::async | std::launch::deferred;
}
$ clang++-mp-3.3 -std=c++11 -stdlib=libc++ launch.cc
launch.cc:5:31: error: invalid operands to binary expression
('std::__1::launch' and
      'std::__1::launch')
  auto l = std::launch::async | std::launch::deferred;
           ~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~
1 error generated.

BTW, it would be nice to have a valid class enum name here (std::launch)
instead of std::__1::launch.</pre>
        </div>
      </p>
      <hr>
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