libstdc++-v3/testsuite/30_threads/thread/cons/5.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) 2009-2022 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 struct nonconst
  30 {
  31   void operator()(std::thread::id& id)
  32   {
  33     id = std::this_thread::get_id();
  34   }
  35 };
  36
  37 void test01()
  38 {
  39   try
  40   {
  41     std::thread::id t1_id1;
  42     nonconst c1;
  43     std::thread t1(std::ref(c1), std::ref(t1_id1));
  44     std::thread::id t1_id2 = t1.get_id();
  45     VERIFY( t1.joinable() );
  46     t1.join();
  47     VERIFY( !t1.joinable() );
  48     VERIFY( t1_id1 == t1_id2 );
  49
  50     std::thread::id t2_id1;
  51     nonconst c2;
  52     std::thread t2(c2, std::ref(t2_id1));
  53     std::thread::id t2_id2 = t2.get_id();
  54     VERIFY( t2.joinable() );
  55     t2.join();
  56     VERIFY( !t2.joinable() );
  57     VERIFY( t2_id1 == t2_id2 );
  58   }
  59   catch (const std::system_error&)
  60   {
  61     VERIFY( false );
  62   }
  63   catch (...)
  64   {
  65     VERIFY( false );
  66   }
  67 }
  68
  69 int main()
  70 {
  71   test01();
  72   return 0;
  73 }