gdb/unittests/basic_string_view/operations/rfind/wchar_t/1.cc

   1 // { dg-options "-std=gnu++17" }
   2
   3 // Copyright (C) 2013-2022 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
  25 void
  26 test01()
  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
  88 int
  89 main()
  90 {
  91   test01();
  92
  93   return 0;
  94 }