56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
// { dg-do run }
|
|
// { dg-options "-pthread" }
|
|
// { dg-require-effective-target c++11 }
|
|
// { dg-require-effective-target pthread }
|
|
// { dg-require-gthreads "" }
|
|
|
|
// Copyright (C) 2010-2020 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 3, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this library; see the file COPYING3. If not see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
#include <future>
|
|
#include <testsuite_hooks.h>
|
|
|
|
int do_work1(int value) { return value; }
|
|
int do_work2(int value) { return value * 2; }
|
|
|
|
int work1(int value)
|
|
{
|
|
auto handle = std::async([=] { return do_work2(value); });
|
|
int tmp = do_work1(value);
|
|
return tmp + handle.get();
|
|
}
|
|
|
|
int work2(int value)
|
|
{
|
|
auto handle = std::async(do_work2, value);
|
|
int tmp = do_work1(value);
|
|
return tmp + handle.get();
|
|
}
|
|
|
|
// libstdc++/42819
|
|
void test01()
|
|
{
|
|
VERIFY( work1(1) == 3 );
|
|
VERIFY( work2(2) == 6 );
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test01();
|
|
return 0;
|
|
}
|