libstdc++-v3/testsuite/21_strings/basic_string_view/operations/rfind/char/1.cc

   1 // { dg-options "-std=gnu++17" }
   2
   3 // Copyright (C) 2013-2016 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 bool
  26 test01()
  27 {
  28   bool test [[gnu::unused]] = true;
  29
  30   typedef std::string_view::size_type csize_type;
  31   typedef std::string_view::const_reference cref;
  32   typedef std::string_view::reference ref;
  33   csize_type npos = std::string_view::npos;
  34   csize_type csz01, csz02;
  35
  36   const char str_lit01[] = "mave";
  37   const std::string_view str01("mavericks, santa cruz");
  38   std::string_view str02(str_lit01);
  39   std::string_view str03("s, s");
  40   std::string_view str04;
  41
  42   // size_type rfind(const string_view&, size_type pos = 0) const;
  43   csz01 = str01.rfind(str01);
  44   VERIFY( csz01 == 0 );
  45   csz01 = str01.rfind(str01, 4);
  46   VERIFY( csz01 == 0 );
  47   csz01 = str01.rfind(str02,3);
  48   VERIFY( csz01 == 0 );
  49   csz01 = str01.rfind(str02);
  50   VERIFY( csz01 == 0 );
  51   csz01 = str01.rfind(str03);
  52   VERIFY( csz01 == 8 );
  53   csz01 = str01.rfind(str03, 3);
  54   VERIFY( csz01 == npos );
  55   csz01 = str01.rfind(str03, 12);
  56   VERIFY( csz01 == 8 );
  57
  58   // An empty string_view consists of no characters
  59   // therefore it should be found at every point in a string_view,
  60   // except beyond the end
  61   csz01 = str01.rfind(str04, 0);
  62   VERIFY( csz01 == 0 );
  63   csz01 = str01.rfind(str04, 5);
  64   VERIFY( csz01 == 5 );
  65   csz01 = str01.rfind(str04, str01.size());
  66   VERIFY( csz01 == str01.size() );
  67   csz01 = str01.rfind(str04, str01.size()+1);
  68   VERIFY( csz01 == str01.size() );
  69
  70   // size_type rfind(const char* s, size_type pos, size_type n) const;
  71   csz01 = str01.rfind(str_lit01, 0, 3);
  72   VERIFY( csz01 == 0 );
  73   csz01 = str01.rfind(str_lit01, 3, 0);
  74   VERIFY( csz01 == 3 );
  75
  76   // size_type rfind(const char* s, size_type pos = 0) const;
  77   csz01 = str01.rfind(str_lit01);
  78   VERIFY( csz01 == 0 );
  79   csz01 = str01.rfind(str_lit01, 3);
  80   VERIFY( csz01 == 0 );
  81
  82   // size_type rfind(char c, size_type pos = 0) const;
  83   csz01 = str01.rfind('z');
  84   csz02 = str01.size() - 1;
  85   VERIFY( csz01 == csz02 );
  86   csz01 = str01.rfind('/');
  87   VERIFY( csz01 == npos );
  88
  89   return test;
  90 }
  91
  92 int
  93 main()
  94 {
  95   test01();
  96
  97   return 0;
  98 }