projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| b32b8144 FG |
1 | // |
| 2 | // atomic_sp_constexpr_test.cpp | |
| 3 | // | |
| 4 | // Copyright 2017 Peter Dimov | |
| 5 | // | |
| 6 | // Distributed under the Boost Software License, Version 1.0. | |
| 7 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 8 | // http://www.boost.org/LICENSE_1_0.txt | |
| 9 | // | |
| 10 | ||
| 11 | #include <boost/config.hpp> | |
| 12 | #include <boost/detail/workaround.hpp> | |
| 13 | ||
| 14 | #define HAVE_CONSTEXPR_INIT | |
| 15 | ||
| 16 | #if defined( BOOST_NO_CXX11_CONSTEXPR ) | |
| 17 | # undef HAVE_CONSTEXPR_INIT | |
| 18 | #endif | |
| 19 | ||
| 20 | #if BOOST_WORKAROUND( BOOST_MSVC, < 1920 ) | |
| 21 | # undef HAVE_CONSTEXPR_INIT | |
| 22 | #endif | |
| 23 | ||
| 24 | #if defined(__clang__) && defined( BOOST_NO_CXX14_CONSTEXPR ) | |
| 25 | # undef HAVE_CONSTEXPR_INIT | |
| 26 | #endif | |
| 27 | ||
| 28 | #if defined( _LIBCPP_VERSION ) && ( _LIBCPP_VERSION < 5000 ) | |
| 29 | // in libc++, atomic_flag has a non-constexpr constructor from bool | |
| 30 | # undef HAVE_CONSTEXPR_INIT | |
| 31 | #endif | |
| 32 | ||
| 33 | #if !defined( HAVE_CONSTEXPR_INIT ) || defined( BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX ) | |
| 34 | ||
| 35 | int main() | |
| 36 | { | |
| 37 | } | |
| 38 | ||
| 39 | #else | |
| 40 | ||
| 41 | #include <boost/smart_ptr/atomic_shared_ptr.hpp> | |
| 42 | #include <boost/core/lightweight_test.hpp> | |
| 43 | ||
| 44 | struct X | |
| 45 | { | |
| 46 | }; | |
| 47 | ||
| 48 | struct Z | |
| 49 | { | |
| 50 | Z(); | |
| 51 | }; | |
| 52 | ||
| 53 | static Z z; | |
| 54 | ||
| 55 | static boost::atomic_shared_ptr<X> p1; | |
| 56 | ||
| 57 | Z::Z() | |
| 58 | { | |
| 59 | p1 = boost::shared_ptr<X>( new X ); | |
| 60 | } | |
| 61 | ||
| 62 | int main() | |
| 63 | { | |
| 64 | boost::shared_ptr<X> p2 = p1; | |
| 65 | ||
| 66 | BOOST_TEST( p2.get() != 0 ); | |
| 67 | BOOST_TEST_EQ( p2.use_count(), 2 ); | |
| 68 | ||
| 69 | return boost::report_errors(); | |
| 70 | } | |
| 71 | ||
| 72 | #endif // #if defined( BOOST_NO_CXX11_CONSEXPR ) |