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fdc11678 SM |
1 | // { dg-options "-std=gnu++17" } |
2 | ||
3 | // Copyright (C) 2013-2018 Free Software Foundation, Inc. | |
4 | // | |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // string_view size, length | |
21 | ||
c9638d26 | 22 | namespace capacity_1 { |
fdc11678 SM |
23 | |
24 | template<typename T> | |
25 | struct A { }; | |
26 | ||
27 | template<typename T> | |
28 | bool | |
29 | operator==(const A<T>&, const A<T>&) { return true; } | |
30 | ||
31 | template<typename T> | |
32 | bool | |
33 | operator<(const A<T>&, const A<T>&) { return true; } | |
34 | ||
35 | struct B { }; | |
36 | ||
c9638d26 SM |
37 | } // namespace capacity_1 |
38 | } // namespace string_view | |
39 | } // namespace selftests | |
40 | ||
fdc11678 SM |
41 | // char_traits specialization |
42 | namespace std | |
43 | { | |
44 | template<> | |
c9638d26 SM |
45 | struct char_traits<selftests::string_view::capacity_1::A< |
46 | selftests::string_view::capacity_1::B> > | |
fdc11678 | 47 | { |
c9638d26 SM |
48 | typedef selftests::string_view::capacity_1::A< |
49 | selftests::string_view::capacity_1::B> char_type; | |
fdc11678 SM |
50 | // Unsigned as wint_t in unsigned. |
51 | typedef unsigned long int_type; | |
52 | typedef streampos pos_type; | |
53 | typedef streamoff off_type; | |
54 | typedef mbstate_t state_type; | |
55 | ||
56 | static void | |
57 | assign(char_type& __c1, const char_type& __c2) | |
58 | { __c1 = __c2; } | |
59 | ||
60 | static bool | |
61 | eq(const char_type& __c1, const char_type& __c2) | |
62 | { return __c1 == __c2; } | |
63 | ||
64 | static bool | |
65 | lt(const char_type& __c1, const char_type& __c2) | |
66 | { return __c1 < __c2; } | |
67 | ||
68 | static int | |
69 | compare(const char_type* __s1, const char_type* __s2, size_t __n) | |
70 | { | |
71 | for (size_t __i = 0; __i < __n; ++__i) | |
72 | if (!eq(__s1[__i], __s2[__i])) | |
73 | return lt(__s1[__i], __s2[__i]) ? -1 : 1; | |
74 | return 0; | |
75 | } | |
76 | ||
77 | static size_t | |
78 | length(const char_type* __s) | |
79 | { | |
80 | const char_type* __p = __s; | |
81 | while (__p) | |
82 | ++__p; | |
83 | return (__p - __s); | |
84 | } | |
85 | ||
86 | static const char_type* | |
87 | find(const char_type* __s, size_t __n, const char_type& __a) | |
88 | { | |
89 | for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p) | |
90 | if (*__p == __a) return __p; | |
91 | return 0; | |
92 | } | |
93 | ||
94 | static char_type* | |
95 | move(char_type* __s1, const char_type* __s2, size_t __n) | |
96 | { return (char_type*) memmove(__s1, __s2, __n * sizeof(char_type)); } | |
97 | ||
98 | static char_type* | |
99 | copy(char_type* __s1, const char_type* __s2, size_t __n) | |
100 | { return (char_type*) memcpy(__s1, __s2, __n * sizeof(char_type)); } | |
101 | ||
102 | static char_type* | |
103 | assign(char_type* __s, size_t __n, char_type __a) | |
104 | { | |
105 | for (char_type* __p = __s; __p < __s + __n; ++__p) | |
106 | assign(*__p, __a); | |
107 | return __s; | |
108 | } | |
109 | ||
110 | static char_type | |
111 | to_char_type(const int_type&) | |
112 | { return char_type(); } | |
113 | ||
114 | static int_type | |
115 | to_int_type(const char_type&) { return int_type(); } | |
116 | ||
117 | static bool | |
118 | eq_int_type(const int_type& __c1, const int_type& __c2) | |
119 | { return __c1 == __c2; } | |
120 | ||
121 | static int_type | |
122 | eof() { return static_cast<int_type>(-1); } | |
123 | ||
124 | static int_type | |
125 | not_eof(const int_type& __c) | |
126 | { return eq_int_type(__c, eof()) ? int_type(0) : __c; } | |
127 | }; | |
128 | } // namespace std | |
129 | ||
c9638d26 SM |
130 | namespace selftests { |
131 | namespace string_view { | |
132 | namespace capacity_1 { | |
133 | ||
fdc11678 SM |
134 | void |
135 | test01() | |
136 | { | |
c9638d26 SM |
137 | gdb::basic_string_view<A<B>> str02; |
138 | typedef gdb::basic_string_view< A<B> >::size_type size_type_o; | |
fdc11678 SM |
139 | size_type_o sz03; |
140 | size_type_o sz04; | |
141 | ||
142 | // non-POD types: size, length, max_size, empty() | |
143 | bool b01 = str02.empty(); | |
144 | VERIFY( b01 == true ); | |
145 | sz03 = str02.size(); | |
146 | sz04 = str02.length(); | |
147 | VERIFY( sz03 == sz04 ); | |
148 | str02.data(); | |
149 | sz03 = str02.size(); | |
150 | sz04 = str02.length(); | |
151 | VERIFY( sz03 == sz04 ); | |
152 | ||
153 | sz03 = str02.max_size(); | |
154 | VERIFY( sz03 >= sz04 ); | |
155 | ||
156 | sz03 = str02.size(); | |
157 | str02 = {}; | |
158 | b01 = str02.empty(); | |
159 | VERIFY( b01 == true ); | |
160 | sz04 = str02.size(); | |
161 | VERIFY( sz03 >= sz04 ); | |
162 | } | |
163 | ||
164 | int | |
165 | main() | |
166 | { | |
167 | test01(); | |
168 | ||
169 | return 0; | |
170 | } | |
c9638d26 SM |
171 | |
172 | } // namespace capacity_1 |