mirror of git://gcc.gnu.org/git/gcc.git
90 lines
2.3 KiB
C++
90 lines
2.3 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) 2008-2018 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 <functional> // std::unary_function, std::ref
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#include <thread>
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#include <system_error>
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#include <testsuite_hooks.h>
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struct copyable : public std::unary_function<std::thread::id&, void>
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{
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copyable() = default;
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~copyable() = default;
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copyable(const copyable& c)
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{ ++copy_count; }
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void operator()(std::thread::id& id) const
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{
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id = std::this_thread::get_id();
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}
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static int copy_count;
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};
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int copyable::copy_count = 0;
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// same as 2, but function is copyable function object
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// thread variadic cons not copied when std::ref
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// thread variadic cons copied when not std::ref
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// no errors
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void test03()
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{
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try
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{
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std::thread::id t1_id1;
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copyable c1;
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std::thread t1(std::ref(c1), std::ref(t1_id1));
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std::thread::id t1_id2 = t1.get_id();
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VERIFY( t1.joinable() );
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t1.join();
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VERIFY( !t1.joinable() );
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VERIFY( t1_id1 == t1_id2 );
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VERIFY( copyable::copy_count == 0 );
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std::thread::id t2_id1;
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copyable c2;
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std::thread t2(c2, std::ref(t2_id1));
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std::thread::id t2_id2 = t2.get_id();
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VERIFY( t2.joinable() );
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t2.join();
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VERIFY( !t2.joinable() );
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VERIFY( t2_id1 == t2_id2 );
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VERIFY( copyable::copy_count > 0 );
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}
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catch (const std::system_error&)
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{
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VERIFY( false );
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}
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catch (...)
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{
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VERIFY( false );
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}
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}
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int main()
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{
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test03();
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return 0;
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}
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