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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 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() {}
#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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