1// { dg-options "-std=gnu++17" }
2
3// Copyright (C) 2013-2020 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
25void
26test01()
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
88constexpr bool
89test02()
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
156int
157main()
158{
159  test01();
160  static_assert( test02() );
161
162  return 0;
163}
164