src/third_party/libc++/trunk/test/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.cons/mutex_adopt_lock.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // <shared_mutex>
  11
  12 // template <class Mutex> class shared_lock;
  13
  14 // shared_lock(mutex_type& m, adopt_lock_t);
  15
  16 #include <shared_mutex>
  17 #include <cassert>
  18
  19 int main()
  20 {
  21 #if _LIBCPP_STD_VER > 11
  22     std::shared_timed_mutex m;
  23     m.lock();
  24     std::shared_lock<std::shared_timed_mutex> lk(m, std::adopt_lock);
  25     assert(lk.mutex() == &m);
  26     assert(lk.owns_lock() == true);
  27 #endif  // _LIBCPP_STD_VER > 11
  28 }