1// { dg-options "-std=gnu++17" }
2
3// Copyright (C) 2013-2023 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#include <string_view>
21#include <testsuite_hooks.h>
22
23// basic_string_view rfind
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 rfind(const wstring_view&, size_type pos = 0) const;
41  csz01 = str01.rfind(str01);
42  VERIFY( csz01 == 0 );
43  csz01 = str01.rfind(str01, 4);
44  VERIFY( csz01 == 0 );
45  csz01 = str01.rfind(str02,3);
46  VERIFY( csz01 == 0 );
47  csz01 = str01.rfind(str02);
48  VERIFY( csz01 == 0 );
49  csz01 = str01.rfind(str03);
50  VERIFY( csz01 == 8 );
51  csz01 = str01.rfind(str03, 3);
52  VERIFY( csz01 == npos );
53  csz01 = str01.rfind(str03, 12);
54  VERIFY( csz01 == 8 );
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.rfind(str04, 0);
60  VERIFY( csz01 == 0 );
61  csz01 = str01.rfind(str04, 5);
62  VERIFY( csz01 == 5 );
63  csz01 = str01.rfind(str04, str01.size());
64  VERIFY( csz01 == str01.size() );
65  csz01 = str01.rfind(str04, str01.size()+1);
66  VERIFY( csz01 == str01.size() );
67
68  // size_type rfind(const wchar_t* s, size_type pos, size_type n) const;
69  csz01 = str01.rfind(str_lit01, 0, 3);
70  VERIFY( csz01 == 0 );
71  csz01 = str01.rfind(str_lit01, 3, 0);
72  VERIFY( csz01 == 3 );
73
74  // size_type rfind(const wchar_t* s, size_type pos = 0) const;
75  csz01 = str01.rfind(str_lit01);
76  VERIFY( csz01 == 0 );
77  csz01 = str01.rfind(str_lit01, 3);
78  VERIFY( csz01 == 0 );
79
80  // size_type rfind(wchar_t c, size_type pos = 0) const;
81  csz01 = str01.rfind(L'z');
82  csz02 = str01.size() - 1;
83  VERIFY( csz01 == csz02 );
84  csz01 = str01.rfind(L'/');
85  VERIFY( csz01 == npos );
86}
87
88int
89main()
90{
91  test01();
92
93  return 0;
94}
95