libstdc++-v3/testsuite/30_threads/thread/swap/1.cc

   1 // { dg-do run }
   2 // { dg-options "-pthread"  }
   3 // { dg-require-effective-target c++11 }
   4 // { dg-require-effective-target pthread }
   5 // { dg-require-gthreads "" }
   6
   7 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 3, or (at your option)
  13 // any later version.
  14
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19
  20 // You should have received a copy of the GNU General Public License along
  21 // with this library; see the file COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24
  25 #include <thread>
  26 #include <system_error>
  27 #include <bits/move.h> // std::move
  28 #include <testsuite_hooks.h>
  29
  30 void f() { }
  31
  32 void test01()
  33 {
  34   try
  35     {
  36       std::thread t1(f);
  37       std::thread::id t1_id = t1.get_id();
  38
  39       std::thread t2;
  40
  41       t2.swap(t1);
  42       VERIFY( t1.get_id() == std::thread::id() );
  43       VERIFY( t2.get_id() == t1_id );
  44
  45       t2.join();
  46     }
  47   catch (const std::system_error&)
  48     {
  49       VERIFY( false );
  50     }
  51   catch (...)
  52     {
  53       VERIFY( false );
  54     }
  55 }
  56
  57 void test02()
  58 {
  59   try
  60     {
  61       std::thread t1(f);
  62       std::thread::id t1_id = t1.get_id();
  63
  64       std::thread t2;
  65
  66       std::swap(t1, t2);
  67       VERIFY( t1.get_id() == std::thread::id() );
  68       VERIFY( t2.get_id() == t1_id );
  69
  70       t2.join();
  71     }
  72   catch (const std::system_error&)
  73     {
  74       VERIFY( false );
  75     }
  76   catch (...)
  77     {
  78       VERIFY( false );
  79     }
  80 }
  81
  82 int main()
  83 {
  84   test01();
  85   test02();
  86
  87   return 0;
  88 }