1 //
2 // sp_constexpr_test2.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     int v_;
44 
XX45     constexpr X() BOOST_NOEXCEPT: v_( 1 )
46     {
47     }
48 };
49 
50 struct Z
51 {
52     Z();
53 };
54 
55 static Z z;
56 static X x;
57 
Z()58 Z::Z()
59 {
60     BOOST_TEST_EQ( x.v_, 1 );
61 }
62 
main()63 int main()
64 {
65     return boost::report_errors();
66 }
67 
68 #endif // #if defined( BOOST_NO_CXX11_CONSEXPR )
69