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73 lines
1.3 KiB
C++
73 lines
1.3 KiB
C++
//
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// atomic_sp_constexpr_test.cpp
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//
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// Copyright 2017 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/config.hpp>
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#include <boost/detail/workaround.hpp>
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#define HAVE_CONSTEXPR_INIT
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#if defined( BOOST_NO_CXX11_CONSTEXPR )
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# undef HAVE_CONSTEXPR_INIT
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#endif
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#if BOOST_WORKAROUND( BOOST_MSVC, < 1920 )
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# undef HAVE_CONSTEXPR_INIT
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#endif
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#if defined(__clang__) && defined( BOOST_NO_CXX14_CONSTEXPR )
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# undef HAVE_CONSTEXPR_INIT
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#endif
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#if defined( _LIBCPP_VERSION ) && ( _LIBCPP_VERSION < 5000 )
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// in libc++, atomic_flag has a non-constexpr constructor from bool
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# undef HAVE_CONSTEXPR_INIT
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#endif
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#if !defined( HAVE_CONSTEXPR_INIT ) || defined( BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX )
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int main()
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{
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}
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#else
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#include <boost/smart_ptr/atomic_shared_ptr.hpp>
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#include <boost/core/lightweight_test.hpp>
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struct X
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{
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};
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struct Z
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{
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Z();
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};
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static Z z;
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static boost::atomic_shared_ptr<X> p1;
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Z::Z()
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{
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p1 = boost::shared_ptr<X>( new X );
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}
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int main()
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{
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boost::shared_ptr<X> p2 = p1;
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BOOST_TEST( p2.get() != 0 );
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BOOST_TEST_EQ( p2.use_count(), 2 );
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return boost::report_errors();
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}
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#endif // #if defined( BOOST_NO_CXX11_CONSEXPR )
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