1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 
11 // iterator, const_iterator, reverse_iterator, const_reverse_iterator
12 
13 #include <string_view>
14 
15 #include <iterator>
16 
17 #include "test_macros.h"
18 
19 using iterator               = std::string_view::iterator;
20 using const_iterator         = std::string_view::const_iterator;
21 using reverse_iterator       = std::string_view::reverse_iterator;
22 using const_reverse_iterator = std::string_view::const_reverse_iterator;
23 
24 static_assert(std::contiguous_iterator<iterator>);
25 LIBCPP_STATIC_ASSERT(std::__has_random_access_iterator_category<iterator>::value);
26 static_assert(!std::indirectly_writable<iterator, char>);
27 static_assert(std::sentinel_for<iterator, iterator>);
28 static_assert(std::sentinel_for<iterator, const_iterator>);
29 static_assert(!std::sentinel_for<iterator, reverse_iterator>);
30 static_assert(!std::sentinel_for<iterator, const_reverse_iterator>);
31 static_assert(std::sized_sentinel_for<iterator, iterator>);
32 static_assert(std::sized_sentinel_for<iterator, const_iterator>);
33 static_assert(!std::sized_sentinel_for<iterator, reverse_iterator>);
34 static_assert(!std::sized_sentinel_for<iterator, const_reverse_iterator>);
35 static_assert(std::indirectly_movable<iterator, char*>);
36 static_assert(std::indirectly_movable_storable<iterator, char*>);
37 static_assert(std::indirectly_copyable<iterator, char*>);
38 static_assert(std::indirectly_copyable_storable<iterator, char*>);
39 static_assert(!std::indirectly_swappable<iterator, iterator>);
40 
41 static_assert(std::contiguous_iterator<const_iterator>);
42 LIBCPP_STATIC_ASSERT(std::__has_random_access_iterator_category<const_iterator>::value);
43 static_assert(!std::indirectly_writable<const_iterator, char>);
44 static_assert(std::sentinel_for<const_iterator, iterator>);
45 static_assert(std::sentinel_for<const_iterator, const_iterator>);
46 static_assert(!std::sentinel_for<const_iterator, reverse_iterator>);
47 static_assert(!std::sentinel_for<const_iterator, const_reverse_iterator>);
48 static_assert(std::sized_sentinel_for<const_iterator, iterator>);
49 static_assert(std::sized_sentinel_for<const_iterator, const_iterator>);
50 static_assert(!std::sized_sentinel_for<const_iterator, reverse_iterator>);
51 static_assert(!std::sized_sentinel_for<const_iterator, const_reverse_iterator>);
52 static_assert(!std::indirectly_swappable<const_iterator, const_iterator>);
53