libstdc++-v3/testsuite/30_threads/thread/cons/9.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) 2009-2024 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 <thread>
  25 #include <system_error>
  26 #include <testsuite_hooks.h>
  27
  28 int total = 0;
  29
  30 // Functor has internal state.
  31 struct moveable
  32 {
  33   int i;
  34
  35   moveable() = default;
  36   ~moveable() = default;
  37   moveable(const moveable& c) = delete;
  38   moveable& operator=(const moveable&) = delete;
  39
  40   moveable(int j): i(j) { }
  41   moveable(moveable&& m): i(m.i) { }
  42
  43   void operator()() const { total += i; }
  44 };
  45
  46 // Two threads called by same functor type, different functor objects
  47 // that have different state. Make sure each thread calls the correct
  48 // functor.
  49 void test09()
  50 {
  51   try
  52     {
  53       // first
  54       moveable m1(60);
  55       std::thread t1(std::move(m1));
  56       t1.join();
  57       VERIFY( total == 60 );
  58
  59       // second
  60       moveable m2(600);
  61       std::thread t2(std::move(m2));
  62       t2.join();
  63       VERIFY( total == 660 ); // Not 120...
  64     }
  65   catch (const std::system_error&)
  66     {
  67       VERIFY( false );
  68     }
  69   catch (...)
  70     {
  71       VERIFY( false );
  72     }
  73 }
  74
  75 int main()
  76 {
  77   test09();
  78   return 0;
  79 }