1 | // Copyright 2021 Peter Dimov |
2 | // Distributed under the Boost Software License, Version 1.0. |
3 | // https://www.boost.org/LICENSE_1_0.txt |
4 | |
5 | #include<boost/bind/apply.hpp> |
6 | #include<boost/bind/bind.hpp> |
7 | #include <boost/core/lightweight_test.hpp> |
8 | #include <boost/config.hpp> |
9 | #include <boost/config/pragma_message.hpp> |
10 | |
11 | #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) |
12 | |
13 | BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_RVALUE_REFERENCES is defined" ) |
14 | int main() {} |
15 | |
16 | #elif defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) |
17 | |
18 | BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_VARIADIC_TEMPLATES is defined" ) |
19 | int main() {} |
20 | |
21 | #elif defined(BOOST_NO_CXX11_REF_QUALIFIERS) |
22 | |
23 | BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_REF_QUALIFIERS is defined" ) |
24 | int main() {} |
25 | |
26 | #else |
27 | |
28 | struct F |
29 | { |
30 | public: |
31 | |
32 | int operator()( int & x ) & |
33 | { |
34 | return x; |
35 | } |
36 | |
37 | int operator()( int && x ) & |
38 | { |
39 | return -x; |
40 | } |
41 | |
42 | int operator()( int & x ) && |
43 | { |
44 | return x + 10; |
45 | } |
46 | |
47 | int operator()( int && x ) && |
48 | { |
49 | return -x - 10; |
50 | } |
51 | }; |
52 | |
53 | int& get_lvalue_arg() |
54 | { |
55 | static int a = 1; |
56 | return a; |
57 | } |
58 | |
59 | int get_prvalue_arg() |
60 | { |
61 | return 2; |
62 | } |
63 | |
64 | F& get_lvalue_f() |
65 | { |
66 | static F f; |
67 | return f; |
68 | } |
69 | |
70 | F get_prvalue_f() |
71 | { |
72 | return F(); |
73 | } |
74 | |
75 | int main() |
76 | { |
77 | using namespace boost::placeholders; |
78 | |
79 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_lvalue_f), boost::bind(get_lvalue_arg))(), 1 ); |
80 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_lvalue_f), boost::bind(get_prvalue_arg))(), -2 ); |
81 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_prvalue_f), boost::bind(get_lvalue_arg))(), 11 ); |
82 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_prvalue_f), boost::bind(get_prvalue_arg))(), -12 ); |
83 | |
84 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F&>(), _1), boost::bind(boost::apply<int&>(), _2))(get_lvalue_f, get_lvalue_arg), 1 ); |
85 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F&>(), _1), boost::bind(boost::apply<int>(), _2))(get_lvalue_f, get_prvalue_arg), -2 ); |
86 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F>(), _1), boost::bind(boost::apply<int&>(), _2))(get_prvalue_f, get_lvalue_arg), 11 ); |
87 | BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F>(), _1), boost::bind(boost::apply<int>(), _2))(get_prvalue_f, get_prvalue_arg), -12 ); |
88 | |
89 | return boost::report_errors(); |
90 | } |
91 | |
92 | #endif |
93 | |