libcxx/test/std/thread/thread.stoptoken/stoptoken/cons.move.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
  10 // UNSUPPORTED: libcpp-has-no-experimental-stop_token
  11 // UNSUPPORTED: c++03, c++11, c++14, c++17
  12 // XFAIL: availability-synchronization_library-missing
  13
  14 // stop_token(stop_token&&) noexcept;
  15
  16 #include <cassert>
  17 #include <stop_token>
  18 #include <type_traits>
  19 #include <utility>
  20
  21 #include "test_macros.h"
  22
  23 static_assert(std::is_nothrow_move_constructible_v<std::stop_token>);
  24
  25 int main(int, char**) {
  26   {
  27     std::stop_source source;
  28     auto st = source.get_token();
  29
  30     assert(st.stop_possible());
  31     assert(!st.stop_requested());
  32
  33     std::stop_token st2{std::move(st)};
  34
  35     assert(!st.stop_possible());
  36     assert(!st.stop_requested());
  37
  38     assert(st2.stop_possible());
  39     assert(!st2.stop_requested());
  40
  41     source.request_stop();
  42
  43     assert(!st.stop_possible());
  44     assert(!st.stop_requested());
  45
  46     assert(st2.stop_possible());
  47     assert(st2.stop_requested());
  48
  49   }
  50
  51   return 0;
  52 }