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99dee823 | 1 | // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
cba9ef06 PP |
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 <ranges> | |
23 | #include <string> | |
24 | #include <string_view> | |
25 | #include <testsuite_hooks.h> | |
26 | #include <testsuite_iterators.h> | |
27 | ||
28 | using __gnu_test::test_range; | |
29 | using __gnu_test::forward_iterator_wrapper; | |
4512b7d8 | 30 | using __gnu_test::input_iterator_wrapper; |
cba9ef06 PP |
31 | |
32 | namespace ranges = std::ranges; | |
33 | namespace views = std::ranges::views; | |
34 | ||
35 | using namespace std::literals; | |
36 | ||
37 | void | |
38 | test01() | |
39 | { | |
40 | auto x = "the quick brown fox"sv; | |
41 | auto p = std::string{" "}; | |
42 | auto v = x | views::split(p); | |
43 | auto i = v.begin(); | |
44 | VERIFY( ranges::equal(*i++, "the"sv) ); | |
45 | VERIFY( ranges::equal(*i++, "quick"sv) ); | |
46 | VERIFY( ranges::equal(*i++, "brown"sv) ); | |
47 | VERIFY( ranges::equal(*i++, "fox"sv) ); | |
48 | VERIFY( i == v.end() ); | |
49 | } | |
50 | ||
51 | void | |
52 | test02() | |
53 | { | |
54 | auto x = "the quick brown fox"sv; | |
55 | auto v = x | views::split(' '); | |
56 | auto i = v.begin(); | |
57 | VERIFY( ranges::equal(*i++, "the"sv) ); | |
58 | VERIFY( ranges::equal(*i++, "quick"sv) ); | |
59 | VERIFY( ranges::equal(*i++, "brown"sv) ); | |
60 | VERIFY( ranges::equal(*i++, "fox"sv) ); | |
61 | VERIFY( i == v.end() ); | |
62 | } | |
63 | ||
64 | void | |
65 | test03() | |
66 | { | |
67 | char x[] = "the quick brown fox"; | |
38c7b74d | 68 | test_range<char, forward_iterator_wrapper> rx(x, x+sizeof(x)-1); |
cba9ef06 PP |
69 | auto v = rx | views::split(' '); |
70 | auto i = v.begin(); | |
71 | VERIFY( ranges::equal(*i++, "the"sv) ); | |
72 | VERIFY( ranges::equal(*i++, "quick"sv) ); | |
73 | VERIFY( ranges::equal(*i++, "brown"sv) ); | |
74 | VERIFY( ranges::equal(*i++, "fox"sv) ); | |
75 | VERIFY( i == v.end() ); | |
76 | } | |
77 | ||
6e63438a PP |
78 | void |
79 | test04() | |
80 | { | |
81 | auto x = "the quick brown fox"sv; | |
82 | std::initializer_list<char> p = {' ', ' '}; | |
83 | static_assert(!ranges::view<decltype(p)>); | |
84 | static_assert(std::same_as<decltype(p | views::all), | |
85 | ranges::ref_view<decltype(p)>>); | |
86 | auto v = x | views::split(p); | |
87 | auto i = v.begin(); | |
88 | VERIFY( ranges::equal(*i++, "the"sv) ); | |
89 | VERIFY( ranges::equal(*i++, "quick"sv) ); | |
90 | VERIFY( ranges::equal(*i++, "brown"sv) ); | |
91 | VERIFY( ranges::equal(*i++, "fox"sv) ); | |
92 | VERIFY( i == v.end() ); | |
93 | } | |
94 | ||
8ce13842 PP |
95 | void |
96 | test05() | |
97 | { | |
98 | auto as_string = [](ranges::view auto rng) { | |
99 | auto in = rng | views::common; | |
100 | return std::string(in.begin(), in.end()); | |
101 | }; | |
102 | std::string str | |
103 | = "Now is the time for all good men to come to the aid of their county."; | |
104 | auto rng | |
105 | = str | views::split(' ') | views::transform(as_string) | views::common; | |
106 | std::vector<std::string> words(rng.begin(), rng.end()); | |
107 | auto not_space_p = [](char c) { return c != ' '; }; | |
108 | VERIFY( ranges::equal(words | views::join, | |
109 | str | views::filter(not_space_p)) ); | |
110 | } | |
111 | ||
ba49e9eb PP |
112 | void |
113 | test06() | |
114 | { | |
115 | std::string str = "hello world"; | |
116 | auto v = str | views::transform(std::identity{}) | views::split(' '); | |
117 | ||
118 | // Verify that _Iterator<false> is implicitly convertible to _Iterator<true>. | |
119 | static_assert(!std::same_as<decltype(ranges::begin(v)), | |
120 | decltype(ranges::cbegin(v))>); | |
121 | auto b = ranges::cbegin(v); | |
122 | b = ranges::begin(v); | |
123 | } | |
124 | ||
cf0c3a45 JW |
125 | void |
126 | test07() | |
127 | { | |
128 | char str[] = "banana split"; | |
129 | auto split = str | views::split(' '); | |
130 | auto val = *split.begin(); | |
131 | auto b = val.begin(); | |
132 | auto b2 = b++; | |
133 | static_assert( noexcept(iter_move(b)) ); | |
134 | static_assert( noexcept(iter_swap(b, b2)) ); | |
135 | } | |
136 | ||
4512b7d8 PP |
137 | void |
138 | test08() | |
139 | { | |
140 | char x[] = "the quick brown fox"; | |
141 | test_range<char, input_iterator_wrapper> rx(x, x+sizeof(x)-1); | |
142 | auto v = rx | views::split(' '); | |
143 | auto i = v.begin(); | |
144 | VERIFY( ranges::equal(*i, "the"sv) ); | |
145 | ++i; | |
146 | VERIFY( ranges::equal(*i, "quick"sv) ); | |
147 | ++i; | |
148 | VERIFY( ranges::equal(*i, "brown"sv) ); | |
149 | ++i; | |
150 | VERIFY( ranges::equal(*i, "fox"sv) ); | |
151 | ++i; | |
152 | VERIFY( i == v.end() ); | |
153 | } | |
154 | ||
cba9ef06 PP |
155 | int |
156 | main() | |
157 | { | |
158 | test01(); | |
159 | test02(); | |
38c7b74d | 160 | test03(); |
6e63438a | 161 | test04(); |
8ce13842 | 162 | test05(); |
ba49e9eb | 163 | test06(); |
cf0c3a45 | 164 | test07(); |
4512b7d8 | 165 | test08(); |
cba9ef06 | 166 | } |