libcxx/test/std/thread/thread.jthread/cons.default.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: c++03, c++11, c++14, c++17
  11 // XFAIL: availability-synchronization_library-missing
  12
  13 // jthread() noexcept;
  14
  15 #include <cassert>
  16 #include <stop_token>
  17 #include <thread>
  18 #include <type_traits>
  19
  20 #include "test_macros.h"
  21
  22 static_assert(std::is_nothrow_default_constructible_v<std::jthread>);
  23
  24 int main(int, char**) {
  25   {
  26     std::jthread jt = {}; // implicit
  27     assert(!jt.get_stop_source().stop_possible());
  28     assert(jt.get_id() == std::jthread::id());
  29   }
  30
  31   return 0;
  32 }