1 // Copyright (C) 2020 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
7 // any later version.
8
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
17
18 // { dg-options "-std=gnu++2a" }
19 // { dg-do run { target c++2a } }
20
21 #include <algorithm>
22 #include <testsuite_hooks.h>
23 #include <testsuite_iterators.h>
24
25 using __gnu_test::test_container;
26 using __gnu_test::test_range;
27 using __gnu_test::input_iterator_wrapper;
28 using __gnu_test::forward_iterator_wrapper;
29
30 namespace ranges = std::ranges;
31
32 void
test01()33 test01()
34 {
35 int x[] = {1,2,3,4,5,6,7};
36 int y[] = {2,4,6};
37 test_range<int, input_iterator_wrapper> rx(x), ry(y);
38
39 VERIFY( ranges::includes(rx, ry) );
40
41 rx.bounds.first = x;
42 ry.bounds.first = y;
43 VERIFY( ranges::includes(rx, ry,
44 ranges::greater{},
45 std::negate<>{},
46 std::negate<>{}) );
47
48 test_container<int, forward_iterator_wrapper> cx(x), cy(y);
49 VERIFY( ranges::includes(cx.begin(), cx.end(),
50 cy.begin(), cy.end(),
51 {},
52 [] (int a) { return a+1; },
53 [] (int a) { return a+2; }) );
54
55 VERIFY( ranges::includes(x, x+1, y, y) );
56 }
57
58 constexpr bool
test03()59 test03()
60 {
61 bool ok = true;
62 ok &= ranges::includes((int[]){1,2,3},
63 (int[]){1});
64 ok &= !ranges::includes((int[]){1,2,3},
65 (int[]){1,2,3,4});
66 return true;
67 }
68
69 int
main()70 main()
71 {
72 test01();
73 static_assert(test03());
74 }
75