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