libstdc++-v3/testsuite/30_threads/thread/cons/2.cc

   1 // { dg-do run }
   2 // { dg-additional-options "-pthread" { target pthread } }
   3 // { dg-require-effective-target c++11 }
   4 // { dg-require-gthreads "" }
   5
   6 // Copyright (C) 2008-2024 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23
  24 #include <functional> // std::ref
  25 #include <thread>
  26 #include <system_error>
  27 #include <testsuite_hooks.h>
  28
  29 void
  30 free_function(std::thread::id& id)
  31 {
  32   id = std::this_thread::get_id();
  33 }
  34
  35 // thread::id default cons
  36 // thread::id copy ctor
  37 // thread variadic cons, c++ function
  38 // thread variadic cons joinable
  39 // thread join
  40 // thread join postcondition not joinable
  41 // thread join postcondition function called correctly
  42 // this_thread::get_id
  43 void test02()
  44 {
  45   try
  46     {
  47       std::thread::id id1;
  48       std::thread t(free_function, std::ref(id1));
  49       std::thread::id id2 = t.get_id();
  50       VERIFY( t.joinable() );
  51       t.join();
  52       VERIFY( !t.joinable() );
  53       VERIFY( id1 == id2 );
  54     }
  55   catch (const std::system_error&)
  56     {
  57       VERIFY( false );
  58     }
  59   catch (...)
  60     {
  61       VERIFY( false );
  62     }
  63 }
  64
  65 int main()
  66 {
  67   test02();
  68   return 0;
  69 }