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- //
- // atomic_sp_constexpr_test.cpp
- //
- // Copyright 2017, 2018 Peter Dimov
- //
- // Distributed under the Boost Software License, Version 1.0.
- // See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt
- //
- #include <boost/config.hpp>
- #include <boost/config/workaround.hpp>
- #include <boost/config/pragma_message.hpp>
- #include <boost/config/helper_macros.hpp>
- #if defined( BOOST_NO_CXX11_CONSTEXPR )
- BOOST_PRAGMA_MESSAGE("Skipping test due to BOOST_NO_CXX11_CONSTEXPR")
- int main() {}
- #elif BOOST_WORKAROUND( BOOST_MSVC, < 1930 )
- // MSVC does not implement static initialization for constexpr constructors
- BOOST_PRAGMA_MESSAGE("Skipping test due to BOOST_MSVC < 1930")
- int main() {}
- #elif defined(__clang__) && defined( BOOST_NO_CXX14_CONSTEXPR )
- // Clang only implements static initialization for constexpr in C++14 mode
- BOOST_PRAGMA_MESSAGE("Skipping test due to __clang__ and BOOST_NO_CXX14_CONSTEXPR")
- int main() {}
- #elif defined( _LIBCPP_VERSION ) && ( _LIBCPP_VERSION < 6000 )
- // in libc++, atomic_flag has a non-constexpr constructor from bool
- BOOST_PRAGMA_MESSAGE("Skipping test due to _LIBCPP_VERSION " BOOST_STRINGIZE(_LIBCPP_VERSION))
- int main() {}
- #elif defined( BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX )
- BOOST_PRAGMA_MESSAGE("Skipping test due to BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX")
- int main() {}
- #else
- #include <boost/smart_ptr/atomic_shared_ptr.hpp>
- #include <boost/core/lightweight_test.hpp>
- struct X
- {
- };
- struct Z
- {
- Z();
- };
- static Z z;
- static boost::atomic_shared_ptr<X> p1;
- Z::Z()
- {
- p1 = boost::shared_ptr<X>( new X );
- }
- int main()
- {
- boost::shared_ptr<X> p2 = p1;
- BOOST_TEST( p2.get() != 0 );
- BOOST_TEST_EQ( p2.use_count(), 2 );
- return boost::report_errors();
- }
- #endif
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