1 // { dg-options "-std=gnu++17" }
2
3 // Copyright (C) 2013-2019 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_first_of
21
22 #include <string_view>
23 #include <testsuite_hooks.h>
24
25 void
test02()26 test02()
27 {
28 typedef std::wstring_view::size_type csize_type;
29 csize_type npos = std::wstring_view::npos;
30 csize_type csz01, csz02;
31
32 const wchar_t str_lit01[] = L"mave";
33 const std::wstring_view str01(L"mavericks, santa cruz");
34 std::wstring_view str02(str_lit01);
35 std::wstring_view str03(L"s, s");
36 std::wstring_view str04;
37
38 // size_type find_first_of(const wstring_view&, size_type pos = 0) const;
39 std::wstring_view str05(L"xena rulez");
40 csz01 = str01.find_first_of(str01);
41 VERIFY( csz01 == 0 );
42 csz01 = str01.find_first_of(str01, 4);
43 VERIFY( csz01 == 4 );
44 csz01 = str01.find_first_of(str02, 0);
45 VERIFY( csz01 == 0 );
46 csz01 = str01.find_first_of(str02, 3);
47 VERIFY( csz01 == 3 );
48 csz01 = str01.find_first_of(str03, 0);
49 VERIFY( csz01 == 8 );
50 csz01 = str01.find_first_of(str03, 3);
51 VERIFY( csz01 == 8 );
52 csz01 = str01.find_first_of(str03, 12);
53 VERIFY( csz01 == 16 );
54 csz01 = str01.find_first_of(str05, 0);
55 VERIFY( csz01 == 1 );
56 csz01 = str01.find_first_of(str05, 4);
57 VERIFY( csz01 == 4 );
58
59 // An empty string_view consists of no characters
60 // therefore it should be found at every point in a string_view,
61 // except beyond the end
62 // However, str1.find_first_of(str2,pos) finds the first character in
63 // str1 (starting at pos) that exists in str2, which is none for empty str2
64 csz01 = str01.find_first_of(str04, 0);
65 VERIFY( csz01 == npos );
66 csz01 = str01.find_first_of(str04, 5);
67 VERIFY( csz01 == npos );
68
69 // size_type find_first_of(const wchar_t* s, size_type pos, size_type n) const;
70 csz01 = str01.find_first_of(str_lit01, 0, 3);
71 VERIFY( csz01 == 0 );
72 csz01 = str01.find_first_of(str_lit01, 3, 0);
73 VERIFY( csz01 == npos );
74
75 // size_type find_first_of(const wchar_t* s, size_type pos = 0) const;
76 csz01 = str01.find_first_of(str_lit01);
77 VERIFY( csz01 == 0 );
78 csz01 = str01.find_first_of(str_lit01, 3);
79 VERIFY( csz01 == 3 );
80
81 // size_type find_first_of(wchar_t c, size_type pos = 0) const;
82 csz01 = str01.find_first_of(L'z');
83 csz02 = str01.size() - 1;
84 VERIFY( csz01 == csz02 );
85 }
86
87 constexpr bool
test04()88 test04()
89 {
90 typedef std::wstring_view::size_type csize_type;
91 csize_type npos = std::wstring_view::npos;
92 csize_type csz01 = 0, csz02 = 0;
93
94 const wchar_t str_lit01[] = L"mave";
95 const std::wstring_view str01(L"mavericks, santa cruz");
96 std::wstring_view str02(str_lit01);
97 std::wstring_view str03(L"s, s");
98 std::wstring_view str04;
99
100 #undef VERIFY
101 #define VERIFY(x) if(!(x)) return false
102
103 // size_type find_first_of(const wstring_view&, size_type pos = 0) const;
104 std::wstring_view str05(L"xena rulez");
105 csz01 = str01.find_first_of(str01);
106 VERIFY( csz01 == 0 );
107 csz01 = str01.find_first_of(str01, 4);
108 VERIFY( csz01 == 4 );
109 csz01 = str01.find_first_of(str02, 0);
110 VERIFY( csz01 == 0 );
111 csz01 = str01.find_first_of(str02, 3);
112 VERIFY( csz01 == 3 );
113 csz01 = str01.find_first_of(str03, 0);
114 VERIFY( csz01 == 8 );
115 csz01 = str01.find_first_of(str03, 3);
116 VERIFY( csz01 == 8 );
117 csz01 = str01.find_first_of(str03, 12);
118 VERIFY( csz01 == 16 );
119 csz01 = str01.find_first_of(str05, 0);
120 VERIFY( csz01 == 1 );
121 csz01 = str01.find_first_of(str05, 4);
122 VERIFY( csz01 == 4 );
123
124 // An empty string_view consists of no characters
125 // therefore it should be found at every point in a string_view,
126 // except beyond the end
127 // However, str1.find_first_of(str2,pos) finds the first character in
128 // str1 (starting at pos) that exists in str2, which is none for empty str2
129 csz01 = str01.find_first_of(str04, 0);
130 VERIFY( csz01 == npos );
131 csz01 = str01.find_first_of(str04, 5);
132 VERIFY( csz01 == npos );
133
134 // size_type find_first_of(const wchar_t* s, size_type pos, size_type n) const;
135 csz01 = str01.find_first_of(str_lit01, 0, 3);
136 VERIFY( csz01 == 0 );
137 csz01 = str01.find_first_of(str_lit01, 3, 0);
138 VERIFY( csz01 == npos );
139
140 // size_type find_first_of(const wchar_t* s, size_type pos = 0) const;
141 csz01 = str01.find_first_of(str_lit01);
142 VERIFY( csz01 == 0 );
143 csz01 = str01.find_first_of(str_lit01, 3);
144 VERIFY( csz01 == 3 );
145
146 // size_type find_first_of(wchar_t c, size_type pos = 0) const;
147 csz01 = str01.find_first_of(L'z');
148 csz02 = str01.size() - 1;
149 VERIFY( csz01 == csz02 );
150
151 return true;
152 }
153
154 int
main()155 main()
156 {
157 test02();
158 static_assert( test04() );
159
160 return 0;
161 }
162