ceph/src/boost/libs/core/test/sv_find_last_of_test.cpp

   1 // Copyright 2021 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #include <boost/core/detail/string_view.hpp>
   6 #include <boost/core/lightweight_test.hpp>
   7 #include <algorithm>
   8 #include <cstddef>
   9
  10 int main()
  11 {
  12     std::size_t const npos = boost::core::string_view::npos;
  13
  14     {
  15         boost::core::string_view sv( "" );
  16
  17         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view() ), npos );
  18         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view(), 1 ), npos );
  19
  20         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "" ) ), npos );
  21         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "" ), 1 ), npos );
  22
  23         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ) ), npos );
  24         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 1 ), npos );
  25
  26         BOOST_TEST_EQ( sv.find_last_of( '1' ), npos );
  27         BOOST_TEST_EQ( sv.find_last_of( '1', 1 ), npos );
  28
  29         BOOST_TEST_EQ( sv.find_last_of( "" ), npos );
  30         BOOST_TEST_EQ( sv.find_last_of( "", 1 ), npos );
  31
  32         BOOST_TEST_EQ( sv.find_last_of( "1" ), npos );
  33         BOOST_TEST_EQ( sv.find_last_of( "1", 1 ), npos );
  34
  35         BOOST_TEST_EQ( sv.find_last_of( "12", 0, 0 ), npos );
  36         BOOST_TEST_EQ( sv.find_last_of( "12", 1, 0 ), npos );
  37
  38         BOOST_TEST_EQ( sv.find_last_of( "12", 0, 1 ), npos );
  39         BOOST_TEST_EQ( sv.find_last_of( "12", 1, 1 ), npos );
  40
  41         BOOST_TEST_EQ( sv.find_last_of( "12", 0, 2 ), npos );
  42         BOOST_TEST_EQ( sv.find_last_of( "12", 1, 2 ), npos );
  43     }
  44
  45     {
  46         boost::core::wstring_view sv( L"" );
  47
  48         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view() ), npos );
  49         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view(), 1 ), npos );
  50
  51         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"" ) ), npos );
  52         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"" ), 1 ), npos );
  53
  54         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ) ), npos );
  55         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 1 ), npos );
  56
  57         BOOST_TEST_EQ( sv.find_last_of( L'1' ), npos );
  58         BOOST_TEST_EQ( sv.find_last_of( L'1', 1 ), npos );
  59
  60         BOOST_TEST_EQ( sv.find_last_of( L"" ), npos );
  61         BOOST_TEST_EQ( sv.find_last_of( L"", 1 ), npos );
  62
  63         BOOST_TEST_EQ( sv.find_last_of( L"1" ), npos );
  64         BOOST_TEST_EQ( sv.find_last_of( L"1", 1 ), npos );
  65
  66         BOOST_TEST_EQ( sv.find_last_of( L"12", 0, 0 ), npos );
  67         BOOST_TEST_EQ( sv.find_last_of( L"12", 1, 0 ), npos );
  68
  69         BOOST_TEST_EQ( sv.find_last_of( L"12", 0, 1 ), npos );
  70         BOOST_TEST_EQ( sv.find_last_of( L"12", 1, 1 ), npos );
  71
  72         BOOST_TEST_EQ( sv.find_last_of( L"12", 0, 2 ), npos );
  73         BOOST_TEST_EQ( sv.find_last_of( L"12", 1, 2 ), npos );
  74     }
  75
  76     {
  77         boost::core::string_view sv( "123123" );
  78
  79         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view(), 0 ), npos );
  80         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view(), 1 ), npos );
  81         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view(), 6 ), npos );
  82         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view(), 7 ), npos );
  83         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view() ), npos );
  84
  85         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "" ) ), npos );
  86         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "" ), 1 ), npos );
  87         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "" ), 6 ), npos );
  88         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "" ), 7 ), npos );
  89
  90         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 0 ), 0 );
  91         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 1 ), 0 );
  92         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 2 ), 0 );
  93         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 3 ), 3 );
  94         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 4 ), 3 );
  95         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 5 ), 3 );
  96         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 6 ), 3 );
  97         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ), 7 ), 3 );
  98         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "1" ) ), 3 );
  99
 100         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "4" ), 0 ), npos );
 101         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "4" ), 1 ), npos );
 102         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "4" ), 6 ), npos );
 103         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "4" ), 7 ), npos );
 104         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "4" ) ), npos );
 105
 106         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 0 ), npos );
 107         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 1 ), 1 );
 108         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 2 ), 2 );
 109         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 3 ), 2 );
 110         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 4 ), 4 );
 111         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 5 ), 5 );
 112         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 6 ), 5 );
 113         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ), 7 ), 5 );
 114         BOOST_TEST_EQ( sv.find_last_of( boost::core::string_view( "23" ) ), 5 );
 115
 116         BOOST_TEST_EQ( sv.find_last_of( '1', 0 ), 0 );
 117         BOOST_TEST_EQ( sv.find_last_of( '1', 1 ), 0 );
 118         BOOST_TEST_EQ( sv.find_last_of( '1', 2 ), 0 );
 119         BOOST_TEST_EQ( sv.find_last_of( '1', 3 ), 3 );
 120         BOOST_TEST_EQ( sv.find_last_of( '1', 4 ), 3 );
 121         BOOST_TEST_EQ( sv.find_last_of( '1', 5 ), 3 );
 122         BOOST_TEST_EQ( sv.find_last_of( '1', 6 ), 3 );
 123         BOOST_TEST_EQ( sv.find_last_of( '1', 7 ), 3 );
 124         BOOST_TEST_EQ( sv.find_last_of( '1' ), 3 );
 125
 126         BOOST_TEST_EQ( sv.find_last_of( '3', 0 ), npos );
 127         BOOST_TEST_EQ( sv.find_last_of( '3', 1 ), npos );
 128         BOOST_TEST_EQ( sv.find_last_of( '3', 2 ), 2 );
 129         BOOST_TEST_EQ( sv.find_last_of( '3', 3 ), 2 );
 130         BOOST_TEST_EQ( sv.find_last_of( '3', 4 ), 2 );
 131         BOOST_TEST_EQ( sv.find_last_of( '3', 5 ), 5 );
 132         BOOST_TEST_EQ( sv.find_last_of( '3', 6 ), 5 );
 133         BOOST_TEST_EQ( sv.find_last_of( '3', 7 ), 5 );
 134         BOOST_TEST_EQ( sv.find_last_of( '3' ), 5 );
 135
 136         BOOST_TEST_EQ( sv.find_last_of( '9' ), npos );
 137
 138         BOOST_TEST_EQ( sv.find_last_of( "", 0 ), npos );
 139         BOOST_TEST_EQ( sv.find_last_of( "", 1 ), npos );
 140         BOOST_TEST_EQ( sv.find_last_of( "", 6 ), npos );
 141         BOOST_TEST_EQ( sv.find_last_of( "", 7 ), npos );
 142         BOOST_TEST_EQ( sv.find_last_of( "" ), npos );
 143
 144         BOOST_TEST_EQ( sv.find_last_of( "1", 0 ), 0 );
 145         BOOST_TEST_EQ( sv.find_last_of( "1", 1 ), 0 );
 146         BOOST_TEST_EQ( sv.find_last_of( "1", 2 ), 0 );
 147         BOOST_TEST_EQ( sv.find_last_of( "1", 3 ), 3 );
 148         BOOST_TEST_EQ( sv.find_last_of( "1", 4 ), 3 );
 149         BOOST_TEST_EQ( sv.find_last_of( "1", 5 ), 3 );
 150         BOOST_TEST_EQ( sv.find_last_of( "1", 6 ), 3 );
 151         BOOST_TEST_EQ( sv.find_last_of( "1", 7 ), 3 );
 152         BOOST_TEST_EQ( sv.find_last_of( "1" ), 3 );
 153
 154         BOOST_TEST_EQ( sv.find_last_of( "23", 0 ), npos );
 155         BOOST_TEST_EQ( sv.find_last_of( "23", 1 ), 1 );
 156         BOOST_TEST_EQ( sv.find_last_of( "23", 2 ), 2 );
 157         BOOST_TEST_EQ( sv.find_last_of( "23", 3 ), 2 );
 158         BOOST_TEST_EQ( sv.find_last_of( "23", 4 ), 4 );
 159         BOOST_TEST_EQ( sv.find_last_of( "23", 5 ), 5 );
 160         BOOST_TEST_EQ( sv.find_last_of( "23", 6 ), 5 );
 161         BOOST_TEST_EQ( sv.find_last_of( "23", 7 ), 5 );
 162         BOOST_TEST_EQ( sv.find_last_of( "23" ), 5 );
 163
 164         BOOST_TEST_EQ( sv.find_last_of( "123", 0, 0 ), npos );
 165         BOOST_TEST_EQ( sv.find_last_of( "123", 1, 0 ), npos );
 166         BOOST_TEST_EQ( sv.find_last_of( "123", 2, 0 ), npos );
 167         BOOST_TEST_EQ( sv.find_last_of( "123", 3, 0 ), npos );
 168         BOOST_TEST_EQ( sv.find_last_of( "123", 4, 0 ), npos );
 169         BOOST_TEST_EQ( sv.find_last_of( "123", 5, 0 ), npos );
 170         BOOST_TEST_EQ( sv.find_last_of( "123", 6, 0 ), npos );
 171         BOOST_TEST_EQ( sv.find_last_of( "123", 7, 0 ), npos );
 172
 173         BOOST_TEST_EQ( sv.find_last_of( "123", 0, 1 ), 0 );
 174         BOOST_TEST_EQ( sv.find_last_of( "123", 1, 1 ), 0 );
 175         BOOST_TEST_EQ( sv.find_last_of( "123", 2, 1 ), 0 );
 176         BOOST_TEST_EQ( sv.find_last_of( "123", 3, 1 ), 3 );
 177         BOOST_TEST_EQ( sv.find_last_of( "123", 4, 1 ), 3 );
 178         BOOST_TEST_EQ( sv.find_last_of( "123", 5, 1 ), 3 );
 179         BOOST_TEST_EQ( sv.find_last_of( "123", 6, 1 ), 3 );
 180         BOOST_TEST_EQ( sv.find_last_of( "123", 7, 1 ), 3 );
 181
 182         BOOST_TEST_EQ( sv.find_last_of( "123", 0, 2 ), 0 );
 183         BOOST_TEST_EQ( sv.find_last_of( "123", 1, 2 ), 1 );
 184         BOOST_TEST_EQ( sv.find_last_of( "123", 2, 2 ), 1 );
 185         BOOST_TEST_EQ( sv.find_last_of( "123", 3, 2 ), 3 );
 186         BOOST_TEST_EQ( sv.find_last_of( "123", 4, 2 ), 4 );
 187         BOOST_TEST_EQ( sv.find_last_of( "123", 5, 2 ), 4 );
 188         BOOST_TEST_EQ( sv.find_last_of( "123", 6, 2 ), 4 );
 189         BOOST_TEST_EQ( sv.find_last_of( "123", 7, 2 ), 4 );
 190
 191         BOOST_TEST_EQ( sv.find_last_of( "123", 0, 3 ), 0 );
 192         BOOST_TEST_EQ( sv.find_last_of( "123", 1, 3 ), 1 );
 193         BOOST_TEST_EQ( sv.find_last_of( "123", 2, 3 ), 2 );
 194         BOOST_TEST_EQ( sv.find_last_of( "123", 3, 3 ), 3 );
 195         BOOST_TEST_EQ( sv.find_last_of( "123", 4, 3 ), 4 );
 196         BOOST_TEST_EQ( sv.find_last_of( "123", 5, 3 ), 5 );
 197         BOOST_TEST_EQ( sv.find_last_of( "123", 6, 3 ), 5 );
 198         BOOST_TEST_EQ( sv.find_last_of( "123", 7, 3 ), 5 );
 199     }
 200
 201     {
 202         boost::core::wstring_view sv( L"123123" );
 203
 204         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view(), 0 ), npos );
 205         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view(), 1 ), npos );
 206         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view(), 6 ), npos );
 207         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view(), 7 ), npos );
 208         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view() ), npos );
 209
 210         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"" ) ), npos );
 211         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"" ), 1 ), npos );
 212         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"" ), 6 ), npos );
 213         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"" ), 7 ), npos );
 214
 215         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 0 ), 0 );
 216         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 1 ), 0 );
 217         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 2 ), 0 );
 218         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 3 ), 3 );
 219         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 4 ), 3 );
 220         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 5 ), 3 );
 221         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 6 ), 3 );
 222         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ), 7 ), 3 );
 223         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"1" ) ), 3 );
 224
 225         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"4" ), 0 ), npos );
 226         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"4" ), 1 ), npos );
 227         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"4" ), 6 ), npos );
 228         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"4" ), 7 ), npos );
 229         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"4" ) ), npos );
 230
 231         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 0 ), npos );
 232         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 1 ), 1 );
 233         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 2 ), 2 );
 234         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 3 ), 2 );
 235         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 4 ), 4 );
 236         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 5 ), 5 );
 237         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 6 ), 5 );
 238         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ), 7 ), 5 );
 239         BOOST_TEST_EQ( sv.find_last_of( boost::core::wstring_view( L"23" ) ), 5 );
 240
 241         BOOST_TEST_EQ( sv.find_last_of( L'1', 0 ), 0 );
 242         BOOST_TEST_EQ( sv.find_last_of( L'1', 1 ), 0 );
 243         BOOST_TEST_EQ( sv.find_last_of( L'1', 2 ), 0 );
 244         BOOST_TEST_EQ( sv.find_last_of( L'1', 3 ), 3 );
 245         BOOST_TEST_EQ( sv.find_last_of( L'1', 4 ), 3 );
 246         BOOST_TEST_EQ( sv.find_last_of( L'1', 5 ), 3 );
 247         BOOST_TEST_EQ( sv.find_last_of( L'1', 6 ), 3 );
 248         BOOST_TEST_EQ( sv.find_last_of( L'1', 7 ), 3 );
 249         BOOST_TEST_EQ( sv.find_last_of( L'1' ), 3 );
 250
 251         BOOST_TEST_EQ( sv.find_last_of( L'3', 0 ), npos );
 252         BOOST_TEST_EQ( sv.find_last_of( L'3', 1 ), npos );
 253         BOOST_TEST_EQ( sv.find_last_of( L'3', 2 ), 2 );
 254         BOOST_TEST_EQ( sv.find_last_of( L'3', 3 ), 2 );
 255         BOOST_TEST_EQ( sv.find_last_of( L'3', 4 ), 2 );
 256         BOOST_TEST_EQ( sv.find_last_of( L'3', 5 ), 5 );
 257         BOOST_TEST_EQ( sv.find_last_of( L'3', 6 ), 5 );
 258         BOOST_TEST_EQ( sv.find_last_of( L'3', 7 ), 5 );
 259         BOOST_TEST_EQ( sv.find_last_of( L'3' ), 5 );
 260
 261         BOOST_TEST_EQ( sv.find_last_of( L'9' ), npos );
 262
 263         BOOST_TEST_EQ( sv.find_last_of( L"", 0 ), npos );
 264         BOOST_TEST_EQ( sv.find_last_of( L"", 1 ), npos );
 265         BOOST_TEST_EQ( sv.find_last_of( L"", 6 ), npos );
 266         BOOST_TEST_EQ( sv.find_last_of( L"", 7 ), npos );
 267         BOOST_TEST_EQ( sv.find_last_of( L"" ), npos );
 268
 269         BOOST_TEST_EQ( sv.find_last_of( L"1", 0 ), 0 );
 270         BOOST_TEST_EQ( sv.find_last_of( L"1", 1 ), 0 );
 271         BOOST_TEST_EQ( sv.find_last_of( L"1", 2 ), 0 );
 272         BOOST_TEST_EQ( sv.find_last_of( L"1", 3 ), 3 );
 273         BOOST_TEST_EQ( sv.find_last_of( L"1", 4 ), 3 );
 274         BOOST_TEST_EQ( sv.find_last_of( L"1", 5 ), 3 );
 275         BOOST_TEST_EQ( sv.find_last_of( L"1", 6 ), 3 );
 276         BOOST_TEST_EQ( sv.find_last_of( L"1", 7 ), 3 );
 277         BOOST_TEST_EQ( sv.find_last_of( L"1" ), 3 );
 278
 279         BOOST_TEST_EQ( sv.find_last_of( L"23", 0 ), npos );
 280         BOOST_TEST_EQ( sv.find_last_of( L"23", 1 ), 1 );
 281         BOOST_TEST_EQ( sv.find_last_of( L"23", 2 ), 2 );
 282         BOOST_TEST_EQ( sv.find_last_of( L"23", 3 ), 2 );
 283         BOOST_TEST_EQ( sv.find_last_of( L"23", 4 ), 4 );
 284         BOOST_TEST_EQ( sv.find_last_of( L"23", 5 ), 5 );
 285         BOOST_TEST_EQ( sv.find_last_of( L"23", 6 ), 5 );
 286         BOOST_TEST_EQ( sv.find_last_of( L"23", 7 ), 5 );
 287         BOOST_TEST_EQ( sv.find_last_of( L"23" ), 5 );
 288
 289         BOOST_TEST_EQ( sv.find_last_of( L"123", 0, 0 ), npos );
 290         BOOST_TEST_EQ( sv.find_last_of( L"123", 1, 0 ), npos );
 291         BOOST_TEST_EQ( sv.find_last_of( L"123", 2, 0 ), npos );
 292         BOOST_TEST_EQ( sv.find_last_of( L"123", 3, 0 ), npos );
 293         BOOST_TEST_EQ( sv.find_last_of( L"123", 4, 0 ), npos );
 294         BOOST_TEST_EQ( sv.find_last_of( L"123", 5, 0 ), npos );
 295         BOOST_TEST_EQ( sv.find_last_of( L"123", 6, 0 ), npos );
 296         BOOST_TEST_EQ( sv.find_last_of( L"123", 7, 0 ), npos );
 297
 298         BOOST_TEST_EQ( sv.find_last_of( L"123", 0, 1 ), 0 );
 299         BOOST_TEST_EQ( sv.find_last_of( L"123", 1, 1 ), 0 );
 300         BOOST_TEST_EQ( sv.find_last_of( L"123", 2, 1 ), 0 );
 301         BOOST_TEST_EQ( sv.find_last_of( L"123", 3, 1 ), 3 );
 302         BOOST_TEST_EQ( sv.find_last_of( L"123", 4, 1 ), 3 );
 303         BOOST_TEST_EQ( sv.find_last_of( L"123", 5, 1 ), 3 );
 304         BOOST_TEST_EQ( sv.find_last_of( L"123", 6, 1 ), 3 );
 305         BOOST_TEST_EQ( sv.find_last_of( L"123", 7, 1 ), 3 );
 306
 307         BOOST_TEST_EQ( sv.find_last_of( L"123", 0, 2 ), 0 );
 308         BOOST_TEST_EQ( sv.find_last_of( L"123", 1, 2 ), 1 );
 309         BOOST_TEST_EQ( sv.find_last_of( L"123", 2, 2 ), 1 );
 310         BOOST_TEST_EQ( sv.find_last_of( L"123", 3, 2 ), 3 );
 311         BOOST_TEST_EQ( sv.find_last_of( L"123", 4, 2 ), 4 );
 312         BOOST_TEST_EQ( sv.find_last_of( L"123", 5, 2 ), 4 );
 313         BOOST_TEST_EQ( sv.find_last_of( L"123", 6, 2 ), 4 );
 314         BOOST_TEST_EQ( sv.find_last_of( L"123", 7, 2 ), 4 );
 315
 316         BOOST_TEST_EQ( sv.find_last_of( L"123", 0, 3 ), 0 );
 317         BOOST_TEST_EQ( sv.find_last_of( L"123", 1, 3 ), 1 );
 318         BOOST_TEST_EQ( sv.find_last_of( L"123", 2, 3 ), 2 );
 319         BOOST_TEST_EQ( sv.find_last_of( L"123", 3, 3 ), 3 );
 320         BOOST_TEST_EQ( sv.find_last_of( L"123", 4, 3 ), 4 );
 321         BOOST_TEST_EQ( sv.find_last_of( L"123", 5, 3 ), 5 );
 322         BOOST_TEST_EQ( sv.find_last_of( L"123", 6, 3 ), 5 );
 323         BOOST_TEST_EQ( sv.find_last_of( L"123", 7, 3 ), 5 );
 324     }
 325
 326     {
 327         boost::core::wstring_view sv( L"\x101\x102\x103\x101\x102\x103" );
 328
 329         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 0, 0 ), npos );
 330         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 1, 0 ), npos );
 331         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 2, 0 ), npos );
 332         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 3, 0 ), npos );
 333         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 4, 0 ), npos );
 334         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 5, 0 ), npos );
 335         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 6, 0 ), npos );
 336         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 7, 0 ), npos );
 337
 338         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 0, 1 ), 0 );
 339         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 1, 1 ), 0 );
 340         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 2, 1 ), 0 );
 341         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 3, 1 ), 3 );
 342         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 4, 1 ), 3 );
 343         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 5, 1 ), 3 );
 344         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 6, 1 ), 3 );
 345         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 7, 1 ), 3 );
 346
 347         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 0, 2 ), 0 );
 348         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 1, 2 ), 1 );
 349         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 2, 2 ), 1 );
 350         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 3, 2 ), 3 );
 351         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 4, 2 ), 4 );
 352         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 5, 2 ), 4 );
 353         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 6, 2 ), 4 );
 354         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 7, 2 ), 4 );
 355
 356         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 0, 3 ), 0 );
 357         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 1, 3 ), 1 );
 358         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 2, 3 ), 2 );
 359         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 3, 3 ), 3 );
 360         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 4, 3 ), 4 );
 361         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 5, 3 ), 5 );
 362         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 6, 3 ), 5 );
 363         BOOST_TEST_EQ( sv.find_last_of( L"\x101\x102\x103", 7, 3 ), 5 );
 364     }
 365
 366     {
 367         boost::core::string_view sv( "abc1abc2abc3" );
 368
 369         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 0 ), npos );
 370         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 1 ), npos );
 371         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 2 ), npos );
 372         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 3 ), 3 );
 373         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 4 ), 3 );
 374         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 5 ), 3 );
 375         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 6 ), 3 );
 376         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 7 ), 7 );
 377         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 8 ), 7 );
 378         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 9 ), 7 );
 379         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 10 ), 7 );
 380         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 11 ), 11 );
 381         BOOST_TEST_EQ( sv.find_last_of( "0123456789", 12 ), 11 );
 382         BOOST_TEST_EQ( sv.find_last_of( "0123456789" ), 11 );
 383     }
 384
 385     {
 386         boost::core::wstring_view sv( L"abc1abc2abc3" );
 387
 388         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 0 ), npos );
 389         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 1 ), npos );
 390         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 2 ), npos );
 391         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 3 ), 3 );
 392         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 4 ), 3 );
 393         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 5 ), 3 );
 394         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 6 ), 3 );
 395         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 7 ), 7 );
 396         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 8 ), 7 );
 397         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 9 ), 7 );
 398         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 10 ), 7 );
 399         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 11 ), 11 );
 400         BOOST_TEST_EQ( sv.find_last_of( L"0123456789", 12 ), 11 );
 401         BOOST_TEST_EQ( sv.find_last_of( L"0123456789" ), 11 );
 402     }
 403
 404     {
 405         boost::core::string_view sv( "123a123B123c" );
 406
 407         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 0 ), npos );
 408         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 1 ), npos );
 409         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 2 ), npos );
 410         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 3 ), 3 );
 411         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 4 ), 3 );
 412         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 5 ), 3 );
 413         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 6 ), 3 );
 414         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 7 ), 7 );
 415         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 8 ), 7 );
 416         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 9 ), 7 );
 417         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 10 ), 7 );
 418         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 11 ), 11 );
 419         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 12 ), 11 );
 420         BOOST_TEST_EQ( sv.find_last_of( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ), 11 );
 421     }
 422
 423     {
 424         boost::core::wstring_view sv( L"123a123B123c" );
 425
 426         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 0 ), npos );
 427         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 1 ), npos );
 428         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 2 ), npos );
 429         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 3 ), 3 );
 430         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 4 ), 3 );
 431         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 5 ), 3 );
 432         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 6 ), 3 );
 433         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 7 ), 7 );
 434         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 8 ), 7 );
 435         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 9 ), 7 );
 436         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 10 ), 7 );
 437         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 11 ), 11 );
 438         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 12 ), 11 );
 439         BOOST_TEST_EQ( sv.find_last_of( L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ), 11 );
 440     }
 441
 442     {
 443         char str[ 256 ];
 444
 445         for( int i = 0; i < 256; ++i )
 446         {
 447             str[ i ] = static_cast< unsigned char >( i );
 448         }
 449
 450         boost::core::string_view sv( str, 256 );
 451
 452         for( int i = 0; i < 256; ++i )
 453         {
 454             std::string needle( 12, static_cast< unsigned char >( i ) );
 455             BOOST_TEST_EQ( sv.find_last_of( needle ), i );
 456         }
 457
 458         std::reverse( str, str + 256 );
 459
 460         for( int i = 0; i < 256; ++i )
 461         {
 462             std::string needle( 12, static_cast< unsigned char >( i ) );
 463             BOOST_TEST_EQ( sv.find_last_of( needle ), 255 - i );
 464         }
 465     }
 466
 467     {
 468         wchar_t str[ 256 ];
 469
 470         for( int i = 0; i < 256; ++i )
 471         {
 472             str[ i ] = static_cast< wchar_t >( 0x100 + i );
 473         }
 474
 475         boost::core::wstring_view sv( str, 256 );
 476
 477         for( int i = 0; i < 256; ++i )
 478         {
 479             std::wstring needle( 12, static_cast< wchar_t >( 0x100 + i ) );
 480             BOOST_TEST_EQ( sv.find_first_of( needle ), i );
 481         }
 482
 483         std::reverse( str, str + 256 );
 484
 485         for( int i = 0; i < 256; ++i )
 486         {
 487             std::wstring needle( 12, static_cast< wchar_t >( 0x100 + i ) );
 488             BOOST_TEST_EQ( sv.find_first_of( needle ), 255 - i );
 489         }
 490     }
 491
 492 #if defined(__cpp_char8_t) && __cpp_char8_t >= 201811L
 493
 494     {
 495         boost::core::u8string_view sv( u8"123123" );
 496
 497         BOOST_TEST_EQ( sv.find_last_of( u8"", 0 ), npos );
 498         BOOST_TEST_EQ( sv.find_last_of( u8"", 1 ), npos );
 499         BOOST_TEST_EQ( sv.find_last_of( u8"", 6 ), npos );
 500         BOOST_TEST_EQ( sv.find_last_of( u8"", 7 ), npos );
 501         BOOST_TEST_EQ( sv.find_last_of( u8"" ), npos );
 502
 503         BOOST_TEST_EQ( sv.find_last_of( u8"1", 0 ), 0 );
 504         BOOST_TEST_EQ( sv.find_last_of( u8"1", 1 ), 0 );
 505         BOOST_TEST_EQ( sv.find_last_of( u8"1", 2 ), 0 );
 506         BOOST_TEST_EQ( sv.find_last_of( u8"1", 3 ), 3 );
 507         BOOST_TEST_EQ( sv.find_last_of( u8"1", 4 ), 3 );
 508         BOOST_TEST_EQ( sv.find_last_of( u8"1", 5 ), 3 );
 509         BOOST_TEST_EQ( sv.find_last_of( u8"1", 6 ), 3 );
 510         BOOST_TEST_EQ( sv.find_last_of( u8"1", 7 ), 3 );
 511         BOOST_TEST_EQ( sv.find_last_of( u8"1" ), 3 );
 512
 513         BOOST_TEST_EQ( sv.find_last_of( u8"23", 0 ), npos );
 514         BOOST_TEST_EQ( sv.find_last_of( u8"23", 1 ), 1 );
 515         BOOST_TEST_EQ( sv.find_last_of( u8"23", 2 ), 2 );
 516         BOOST_TEST_EQ( sv.find_last_of( u8"23", 3 ), 2 );
 517         BOOST_TEST_EQ( sv.find_last_of( u8"23", 4 ), 4 );
 518         BOOST_TEST_EQ( sv.find_last_of( u8"23", 5 ), 5 );
 519         BOOST_TEST_EQ( sv.find_last_of( u8"23", 6 ), 5 );
 520         BOOST_TEST_EQ( sv.find_last_of( u8"23", 7 ), 5 );
 521         BOOST_TEST_EQ( sv.find_last_of( u8"23" ), 5 );
 522
 523         BOOST_TEST_EQ( sv.find_last_of( u8"123", 0 ), 0 );
 524         BOOST_TEST_EQ( sv.find_last_of( u8"123", 1 ), 1 );
 525         BOOST_TEST_EQ( sv.find_last_of( u8"123", 2 ), 2 );
 526         BOOST_TEST_EQ( sv.find_last_of( u8"123", 3 ), 3 );
 527         BOOST_TEST_EQ( sv.find_last_of( u8"123", 4 ), 4 );
 528         BOOST_TEST_EQ( sv.find_last_of( u8"123", 5 ), 5 );
 529         BOOST_TEST_EQ( sv.find_last_of( u8"123", 6 ), 5 );
 530         BOOST_TEST_EQ( sv.find_last_of( u8"123", 7 ), 5 );
 531         BOOST_TEST_EQ( sv.find_last_of( u8"123" ), 5 );
 532     }
 533
 534     {
 535         boost::core::u8string_view sv( u8"abc1abc2abc3" );
 536
 537         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 0 ), npos );
 538         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 1 ), npos );
 539         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 2 ), npos );
 540         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 3 ), 3 );
 541         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 4 ), 3 );
 542         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 5 ), 3 );
 543         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 6 ), 3 );
 544         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 7 ), 7 );
 545         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 8 ), 7 );
 546         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 9 ), 7 );
 547         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 10 ), 7 );
 548         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 11 ), 11 );
 549         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789", 12 ), 11 );
 550         BOOST_TEST_EQ( sv.find_last_of( u8"0123456789" ), 11 );
 551     }
 552
 553     {
 554         boost::core::u8string_view sv( u8"123a123B123c" );
 555
 556         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 0 ), npos );
 557         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 1 ), npos );
 558         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 2 ), npos );
 559         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 3 ), 3 );
 560         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 4 ), 3 );
 561         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 5 ), 3 );
 562         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 6 ), 3 );
 563         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 7 ), 7 );
 564         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 8 ), 7 );
 565         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 9 ), 7 );
 566         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 10 ), 7 );
 567         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 11 ), 11 );
 568         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 12 ), 11 );
 569         BOOST_TEST_EQ( sv.find_last_of( u8"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ), 11 );
 570     }
 571
 572 #endif
 573
 574     return boost::report_errors();
 575 }