ceph/src/boost/libs/thread/test/test_2501.cpp

   1 // Copyright (C) 2010 Vicente Botet
   2 //
   3 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/thread/shared_mutex.hpp>
   7 #include <boost/thread/locks.hpp>
   8
   9 int main() {
  10
  11     boost::shared_mutex mtx; boost::upgrade_lock<boost::shared_mutex> lk(mtx);
  12
  13     boost::upgrade_to_unique_lock<boost::shared_mutex> lk2(lk);
  14
  15     return 0;
  16 }