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 // basic_string_view find
21
22 #include <string_view>
23 #include <testsuite_hooks.h>
24
25 void
test01()26 test01()
27 {
28 typedef std::wstring_view::size_type csize_type;
29 typedef std::wstring_view::const_reference cref;
30 typedef std::wstring_view::reference ref;
31 csize_type npos = std::wstring_view::npos;
32 csize_type csz01, csz02;
33
34 const wchar_t str_lit01[] = L"mave";
35 const std::wstring_view str01(L"mavericks, santa cruz");
36 std::wstring_view str02(str_lit01);
37 std::wstring_view str03(L"s, s");
38 std::wstring_view str04;
39
40 // size_type find(const wstring_view&, size_type pos = 0) const;
41 csz01 = str01.find(str01);
42 VERIFY( csz01 == 0 );
43 csz01 = str01.find(str01, 4);
44 VERIFY( csz01 == npos );
45 csz01 = str01.find(str02, 0);
46 VERIFY( csz01 == 0 );
47 csz01 = str01.find(str02, 3);
48 VERIFY( csz01 == npos );
49 csz01 = str01.find(str03, 0);
50 VERIFY( csz01 == 8 );
51 csz01 = str01.find(str03, 3);
52 VERIFY( csz01 == 8 );
53 csz01 = str01.find(str03, 12);
54 VERIFY( csz01 == npos );
55
56 // An empty string_view consists of no characters
57 // therefore it should be found at every point in a string_view,
58 // except beyond the end
59 csz01 = str01.find(str04, 0);
60 VERIFY( csz01 == 0 );
61 csz01 = str01.find(str04, 5);
62 VERIFY( csz01 == 5 );
63 csz01 = str01.find(str04, str01.size());
64 VERIFY( csz01 == str01.size() );
65 csz01 = str01.find(str04, str01.size()+1);
66 VERIFY( csz01 == npos );
67
68 // size_type find(const wchar_t* s, size_type pos, size_type n) const;
69 csz01 = str01.find(str_lit01, 0, 3);
70 VERIFY( csz01 == 0 );
71 csz01 = str01.find(str_lit01, 3, 0);
72 VERIFY( csz01 == 3 );
73
74 // size_type find(const wchar_t* s, size_type pos = 0) const;
75 csz01 = str01.find(str_lit01);
76 VERIFY( csz01 == 0 );
77 csz01 = str01.find(str_lit01, 3);
78 VERIFY( csz01 == npos );
79
80 // size_type find(wchar_t c, size_type pos = 0) const;
81 csz01 = str01.find(L'z');
82 csz02 = str01.size() - 1;
83 VERIFY( csz01 == csz02 );
84 csz01 = str01.find(L'/');
85 VERIFY( csz01 == npos );
86 }
87
88 constexpr bool
test02()89 test02()
90 {
91 typedef std::wstring_view::size_type csize_type;
92 typedef std::wstring_view::const_reference cref;
93 typedef std::wstring_view::reference ref;
94 csize_type npos = std::wstring_view::npos;
95 csize_type csz01 = 0, csz02 = 0;
96
97 const wchar_t str_lit01[] = L"mave";
98 const std::wstring_view str01(L"mavericks, santa cruz");
99 std::wstring_view str02(str_lit01);
100 std::wstring_view str03(L"s, s");
101 std::wstring_view str04;
102
103 #undef VERIFY
104 #define VERIFY(x) if(!(x)) return false
105
106 // size_type find(const wstring_view&, size_type pos = 0) const;
107 csz01 = str01.find(str01);
108 VERIFY( csz01 == 0 );
109 csz01 = str01.find(str01, 4);
110 VERIFY( csz01 == npos );
111 csz01 = str01.find(str02, 0);
112 VERIFY( csz01 == 0 );
113 csz01 = str01.find(str02, 3);
114 VERIFY( csz01 == npos );
115 csz01 = str01.find(str03, 0);
116 VERIFY( csz01 == 8 );
117 csz01 = str01.find(str03, 3);
118 VERIFY( csz01 == 8 );
119 csz01 = str01.find(str03, 12);
120 VERIFY( csz01 == npos );
121
122 // An empty string_view consists of no characters
123 // therefore it should be found at every point in a string_view,
124 // except beyond the end
125 csz01 = str01.find(str04, 0);
126 VERIFY( csz01 == 0 );
127 csz01 = str01.find(str04, 5);
128 VERIFY( csz01 == 5 );
129 csz01 = str01.find(str04, str01.size());
130 VERIFY( csz01 == str01.size() );
131 csz01 = str01.find(str04, str01.size()+1);
132 VERIFY( csz01 == npos );
133
134 // size_type find(const wchar_t* s, size_type pos, size_type n) const;
135 csz01 = str01.find(str_lit01, 0, 3);
136 VERIFY( csz01 == 0 );
137 csz01 = str01.find(str_lit01, 3, 0);
138 VERIFY( csz01 == 3 );
139
140 // size_type find(const wchar_t* s, size_type pos = 0) const;
141 csz01 = str01.find(str_lit01);
142 VERIFY( csz01 == 0 );
143 csz01 = str01.find(str_lit01, 3);
144 VERIFY( csz01 == npos );
145
146 // size_type find(wchar_t c, size_type pos = 0) const;
147 csz01 = str01.find(L'z');
148 csz02 = str01.size() - 1;
149 VERIFY( csz01 == csz02 );
150 csz01 = str01.find(L'/');
151 VERIFY( csz01 == npos );
152
153 return true;
154 }
155
156 int
main()157 main()
158 {
159 test01();
160 static_assert( test02() );
161
162 return 0;
163 }
164