1 // { dg-options "-std=gnu++17" }
2 // { dg-do run }
3
4 // Copyright (C) 2016-2018 Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3. If not see
19 // <http://www.gnu.org/licenses/>.
20
21 #include <any>
22 #include <testsuite_hooks.h>
23 #include <vector>
24 #include <tuple>
25
26 struct combined {
27 std::vector<int> v;
28 std::tuple<int, int> t;
29 template<class... Args>
combinedcombined30 combined(std::initializer_list<int> il, Args&&... args)
31 : v(il), t(std::forward<Args>(args)...)
32 {
33 }
34 };
35
main()36 int main()
37 {
38 const int i = 42;
39 std::any o(std::in_place_type<int>, i);
40 int& i2 = std::any_cast<int&>(o);
41 VERIFY( i2 == 42 );
42 VERIFY( &i2 != &i );
43 std::any o2(std::in_place_type<std::tuple<int, int>>, 1, 2);
44 std::tuple<int, int>& t = std::any_cast<std::tuple<int, int>&>(o2);
45 VERIFY( std::get<0>(t) == 1 && std::get<1>(t) == 2);
46 std::any o3(std::in_place_type<std::vector<int>>, {42, 666});
47 std::vector<int>& v = std::any_cast<std::vector<int>&>(o3);
48 VERIFY(v[0] == 42 && v[1] == 666);
49 std::any o4(std::in_place_type<combined>, {42, 666});
50 combined& c = std::any_cast<combined&>(o4);
51 VERIFY(c.v[0] == 42 && c.v[1] == 666
52 && std::get<0>(c.t) == 0 && std::get<1>(c.t) == 0 );
53 std::any o5(std::in_place_type<combined>, {1, 2}, 3, 4);
54 combined& c2 = std::any_cast<combined&>(o5);
55 VERIFY(c2.v[0] == 1 && c2.v[1] == 2
56 && std::get<0>(c2.t) == 3 && std::get<1>(c2.t) == 4 );
57 std::any o6(std::in_place_type<int&>, i);
58 VERIFY(o6.type() == o.type());
59 std::any o7(std::in_place_type<void()>, nullptr);
60 std::any o8(std::in_place_type<void(*)()>, nullptr);
61 VERIFY(o7.type() == o8.type());
62 std::any o9(std::in_place_type<char(&)[42]>, nullptr);
63 std::any o10(std::in_place_type<char*>, nullptr);
64 VERIFY(o9.type() == o10.type());
65 }
66