mirror of git://gcc.gnu.org/git/gcc.git
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
// -*- C++ -*-
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// Utilities for testing threads for the C++ library testsuite.
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//
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// Copyright (C) 2009-2019 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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//
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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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//
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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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//
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#ifndef _GLIBCXX_TESTSUITE_THREAD_H
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#define _GLIBCXX_TESTSUITE_THREAD_H
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#include <sstream>
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#include <stdexcept>
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#include <type_traits>
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// C++11 only.
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namespace __gnu_test
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{
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// Assume _Tp::native_handle_type.
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// Check C++ to native_handle_type characteristics: size and alignment.
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template<typename _Tp>
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void
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compare_type_to_native_type()
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{
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typedef _Tp test_type;
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// Remove possible pointer type.
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typedef typename test_type::native_handle_type native_handle;
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typedef typename std::remove_pointer<native_handle>::type native_type;
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int st = sizeof(test_type);
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int snt = sizeof(native_type);
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int at = __alignof__(test_type);
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int ant = __alignof__(native_type);
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if (st != snt || at != ant)
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{
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std::ostringstream s;
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s << std::endl;
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s << "size of _Tp: " << st << std::endl;
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s << "alignment of _Tp: " << st << std::endl;
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s << "size of *(_Tp::native_handle_type): " << snt << std::endl;
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s << "alignment of *(_Tp::native_handle_type): " << snt << std::endl;
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throw std::runtime_error(s.str());
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}
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}
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} // namespace __gnu_test
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#endif // _GLIBCXX_TESTSUITE_THREAD_H
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