1 //
2 // 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, < 1930 )
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( HAVE_CONSTEXPR_INIT )
29 
main()30 int main()
31 {
32 }
33 
34 #else
35 
36 #include <boost/shared_ptr.hpp>
37 #include <boost/weak_ptr.hpp>
38 #include <boost/enable_shared_from_this.hpp>
39 #include <boost/core/lightweight_test.hpp>
40 
41 struct X: public boost::enable_shared_from_this<X>
42 {
43 };
44 
45 struct Z
46 {
47     Z();
48 };
49 
50 static Z z;
51 
52 static boost::shared_ptr<X> p1;
53 static boost::weak_ptr<X> p2;
54 
55 #if !defined( BOOST_NO_CXX11_NULLPTR )
56   static boost::shared_ptr<X> p3( nullptr );
57 #endif
58 
Z()59 Z::Z()
60 {
61     p1.reset( new X );
62     p2 = p1;
63 #if !defined( BOOST_NO_CXX11_NULLPTR )
64     p3.reset( new X );
65 #endif
66 }
67 
main()68 int main()
69 {
70     BOOST_TEST( p1.get() != 0 );
71     BOOST_TEST_EQ( p1.use_count(), 1 );
72 
73     BOOST_TEST_EQ( p2.use_count(), 1 );
74     BOOST_TEST_EQ( p2.lock(), p1 );
75 
76 #if !defined( BOOST_NO_CXX11_NULLPTR )
77 
78     BOOST_TEST( p3.get() != 0 );
79     BOOST_TEST_EQ( p3.use_count(), 1 );
80 
81 #endif
82 
83     return boost::report_errors();
84 }
85 
86 #endif // #if defined( BOOST_NO_CXX11_CONSEXPR )
87