1
2 // Copyright 2015, 2017 Peter Dimov.
3 //
4 // Distributed under the Boost Software License, Version 1.0.
5 //
6 // See accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt
8
9
10 #if defined(_MSC_VER)
11 #pragma warning( disable: 4244 ) // 'initializing': conversion from 'int' to 'char', possible loss of data
12 #endif
13
14 #include <boost/mp11/tuple.hpp>
15 #include <boost/core/lightweight_test.hpp>
16 #include <tuple>
17 #include <memory>
18 #include <utility>
19 #include <array>
20
main()21 int main()
22 {
23 using boost::mp11::tuple_apply;
24
25 {
26 std::tuple<int, short, char> tp{ 1, 2, 3 };
27
28 {
29 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, tp );
30 BOOST_TEST_EQ( s, 123 );
31 }
32
33 {
34 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, std::move(tp) );
35 BOOST_TEST_EQ( s, 123 );
36 }
37 }
38
39 {
40 std::tuple<int, short, char> const tp{ 1, 2, 3 };
41
42 {
43 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, tp );
44 BOOST_TEST_EQ( s, 123 );
45 }
46
47 {
48 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, std::move(tp) );
49 BOOST_TEST_EQ( s, 123 );
50 }
51 }
52
53 #if defined( __clang_major__ ) && __clang_major__ == 3 && __clang_minor__ < 8
54 #else
55
56 {
57 std::tuple<std::unique_ptr<int>, std::unique_ptr<int>, std::unique_ptr<int>> tp{ std::unique_ptr<int>(new int(1)), std::unique_ptr<int>(new int(2)), std::unique_ptr<int>(new int(3)) };
58
59 int s = tuple_apply( [&]( std::unique_ptr<int> px, std::unique_ptr<int> py, std::unique_ptr<int> pz ){ return 100 * *px + 10 * *py + *pz; }, std::move(tp) );
60 BOOST_TEST_EQ( s, 123 );
61 }
62
63 #endif
64
65 {
66 std::pair<int, short> tp{ 1, 2 };
67
68 {
69 int s = tuple_apply( [&]( int x, int y ){ return 10 * x + y; }, tp );
70 BOOST_TEST_EQ( s, 12 );
71 }
72
73 {
74 int s = tuple_apply( [&]( int x, int y ){ return 10 * x + y; }, std::move(tp) );
75 BOOST_TEST_EQ( s, 12 );
76 }
77 }
78
79 {
80 std::pair<int, short> const tp{ 1, 2 };
81
82 {
83 int s = tuple_apply( [&]( int x, int y ){ return 10 * x + y; }, tp );
84 BOOST_TEST_EQ( s, 12 );
85 }
86
87 {
88 int s = tuple_apply( [&]( int x, int y ){ return 10 * x + y; }, std::move(tp) );
89 BOOST_TEST_EQ( s, 12 );
90 }
91 }
92
93 {
94 std::array<int, 3> tp{{ 1, 2, 3 }};
95
96 {
97 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, tp );
98 BOOST_TEST_EQ( s, 123 );
99 }
100
101 {
102 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, std::move(tp) );
103 BOOST_TEST_EQ( s, 123 );
104 }
105 }
106
107 {
108 std::array<int, 3> const tp{{ 1, 2, 3 }};
109
110 {
111 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, tp );
112 BOOST_TEST_EQ( s, 123 );
113 }
114
115 {
116 int s = tuple_apply( [&]( int x, int y, int z ){ return 100 * x + 10 * y + z; }, std::move(tp) );
117 BOOST_TEST_EQ( s, 123 );
118 }
119 }
120
121 {
122 std::tuple<> tp;
123
124 BOOST_TEST_EQ( tuple_apply( []{ return 11; }, tp ), 11 );
125 BOOST_TEST_EQ( tuple_apply( []{ return 12; }, std::move( tp ) ), 12 );
126 }
127
128 {
129 std::array<int, 0> tp;
130
131 BOOST_TEST_EQ( tuple_apply( []{ return 11; }, tp ), 11 );
132 BOOST_TEST_EQ( tuple_apply( []{ return 12; }, std::move( tp ) ), 12 );
133 }
134
135 return boost::report_errors();
136 }
137