libstdc++-v3/testsuite/30_threads/thread/cons/moveable.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 <utility>
  26 #include <testsuite_hooks.h>
  27
  28 struct moveable
  29 {
  30   moveable() = default;
  31   ~moveable() = default;
  32   moveable(const moveable& c) = delete;
  33   moveable& operator=(const moveable&) = delete;
  34   moveable(moveable&&) { }
  35
  36   void operator()() const { }
  37 };
  38
  39
  40 void test01()
  41 {
  42   moveable m;
  43   std::thread b(std::move(m));
  44   std::thread::id id_initial = b.get_id();
  45   VERIFY( b.joinable() );
  46   VERIFY( id_initial != std::thread::id() );
  47
  48   // copy move construct
  49   // copied new thread old id, original thread default id
  50   std::thread c(std::move(b));
  51   VERIFY( c.joinable() );
  52   VERIFY( c.get_id() == id_initial );
  53   VERIFY( !b.joinable() );
  54   VERIFY( b.get_id() == std::thread::id() );
  55
  56   // copy move assign
  57   std::thread d;
  58   VERIFY( !d.joinable() );
  59   VERIFY( d.get_id() == std::thread::id() );
  60   d = std::move(c);
  61   VERIFY( d.joinable() );
  62   VERIFY( d.get_id() == id_initial );
  63   VERIFY( !c.joinable() );
  64   VERIFY( c.get_id() == std::thread::id() );
  65
  66   d.join();
  67 }
  68
  69 int main(void)
  70 {
  71   test01();
  72   return 0;
  73 }