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https://github.com/autc04/Retro68.git
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56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
// { dg-do run }
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// { dg-options "-pthread" }
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// { dg-require-effective-target c++11 }
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// { dg-require-effective-target pthread }
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// { dg-require-gthreads "" }
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// Copyright (C) 2010-2019 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <future>
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#include <testsuite_hooks.h>
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int do_work1(int value) { return value; }
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int do_work2(int value) { return value * 2; }
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int work1(int value)
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{
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auto handle = std::async([=] { return do_work2(value); });
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int tmp = do_work1(value);
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return tmp + handle.get();
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}
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int work2(int value)
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{
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auto handle = std::async(do_work2, value);
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int tmp = do_work1(value);
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return tmp + handle.get();
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}
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// libstdc++/42819
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void test01()
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{
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VERIFY( work1(1) == 3 );
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VERIFY( work2(2) == 6 );
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}
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int main()
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{
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test01();
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return 0;
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}
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