|
152
|
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 <ranges>
|
|
|
22 #include <testsuite_iterators.h>
|
|
|
23 #include <testsuite_hooks.h>
|
|
|
24
|
|
|
25 using __gnu_test::test_input_range;
|
|
|
26
|
|
|
27 namespace ranges = std::ranges;
|
|
|
28
|
|
|
29 struct my_range
|
|
|
30 {
|
|
|
31 static inline int x[] = {1,2,3};
|
|
|
32 static inline test_input_range<int> r{x};
|
|
|
33
|
|
|
34 bool called_begin = false;
|
|
|
35
|
|
|
36 auto
|
|
|
37 begin()
|
|
|
38 {
|
|
|
39 called_begin = true;
|
|
|
40 return r.begin();
|
|
|
41 }
|
|
|
42
|
|
|
43 auto
|
|
|
44 end()
|
|
|
45 {
|
|
|
46 return r.end();
|
|
|
47 }
|
|
|
48
|
|
|
49 ranges::range_difference_t<decltype(r)>
|
|
|
50 size()
|
|
|
51 {
|
|
|
52 VERIFY( !called_begin );
|
|
|
53 return 3;
|
|
|
54 }
|
|
|
55 };
|
|
|
56
|
|
|
57 void
|
|
|
58 test01()
|
|
|
59 {
|
|
|
60 my_range r;
|
|
|
61 static_assert(!ranges::forward_range<my_range>);
|
|
|
62 static_assert(ranges::sized_range<my_range>);
|
|
|
63 ranges::subrange sr = r;
|
|
|
64 VERIFY( ranges::size(sr) == 3 );
|
|
|
65 }
|
|
|
66
|
|
|
67 int
|
|
|
68 main()
|
|
|
69 {
|
|
|
70 test01();
|
|
|
71 }
|
