libstdc++-v3/testsuite/30_threads/packaged_task/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) 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 <future>
  25 #include <testsuite_hooks.h>
  26 #include <testsuite_tr1.h>
  27
  28 using namespace __gnu_test;
  29
  30 int f1() { return 0; }
  31 int& f2() { static int i; return i; }
  32 void f3() { }
  33 ClassType f4() { return ClassType(); }
  34
  35 struct Derived : AbstractClass {
  36   void rotate(int) { }
  37   Derived& operator()(int i) { rotate(i); return *this; }
  38 } f5;
  39
  40 void test01()
  41 {
  42   using std::packaged_task;
  43
  44   packaged_task<int ()> p1(f1);
  45   VERIFY( p1.valid() );
  46   packaged_task<int& ()> p2(f2);
  47   VERIFY( p2.valid() );
  48   packaged_task<void ()> p3(f3);
  49   VERIFY( p3.valid() );
  50   packaged_task<ClassType ()> p4(f4);
  51   VERIFY( p4.valid() );
  52   packaged_task<AbstractClass& (int)> p5(f5);
  53   VERIFY( p5.valid() );
  54 }
  55
  56 int main()
  57 {
  58   test01();
  59   return 0;
  60 }