Function lock_guard

extern/boost/boost/thread/lock_guard.hpp:50–54

#if ! defined BOOST_THREAD_NO_CXX11_HDR_INITIALIZER_LIST
    lock_guard(std::initializer_list<thread_detail::lockable_wrapper<Mutex> > l_) :
      m(*(const_cast<thread_detail::lockable_wrapper<Mutex>*>(l_.begin())->m))
    {
      m.lock();
    }

    lock_guard(std::initializer_list<thread_detail::lockable_adopt_wrapper<Mutex> > l_) :
      m(*(const_cast<thread_detail::lockable_adopt_wrapper<Mutex>*>(l_.begin())->m))