libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.unique/thread.lock.unique.cons/move_ctor.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // UNSUPPORTED: no-threads, c++03
  10
  11 // <mutex>
  12
  13 // template <class Mutex> class unique_lock;
  14
  15 // unique_lock(unique_lock&& u);
  16
  17 #include <mutex>
  18 #include <cassert>
  19 #include "nasty_containers.h"
  20
  21 #include "test_macros.h"
  22
  23 int main(int, char**)
  24 {
  25     {
  26     typedef std::mutex M;
  27     M m;
  28     std::unique_lock<M> lk0(m);
  29     std::unique_lock<M> lk = std::move(lk0);
  30     assert(lk.mutex() == std::addressof(m));
  31     assert(lk.owns_lock() == true);
  32     assert(lk0.mutex() == nullptr);
  33     assert(lk0.owns_lock() == false);
  34     }
  35     {
  36     typedef nasty_mutex M;
  37     M m;
  38     std::unique_lock<M> lk0(m);
  39     std::unique_lock<M> lk = std::move(lk0);
  40     assert(lk.mutex() == std::addressof(m));
  41     assert(lk.owns_lock() == true);
  42     assert(lk0.mutex() == nullptr);
  43     assert(lk0.owns_lock() == false);
  44     }
  45
  46   return 0;
  47 }