gdb/unittests/basic_string_view/operations/find/char/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 // basic_string_view find
  21
  22 namespace operations_find_1 {
  23
  24 static void
  25 test01 ()
  26 {
  27   typedef gdb::string_view::size_type csize_type;
  28   typedef gdb::string_view::const_reference cref;
  29   typedef gdb::string_view::reference ref;
  30   csize_type npos = gdb::string_view::npos;
  31   csize_type csz01, csz02;
  32
  33   const char str_lit01[] = "mave";
  34   const gdb::string_view str01("mavericks, santa cruz");
  35   gdb::string_view str02(str_lit01);
  36   gdb::string_view str03("s, s");
  37   gdb::string_view str04;
  38
  39   // size_type find(const string_view&, size_type pos = 0) const;
  40   csz01 = str01.find(str01);
  41   VERIFY( csz01 == 0 );
  42   csz01 = str01.find(str01, 4);
  43   VERIFY( csz01 == npos );
  44   csz01 = str01.find(str02, 0);
  45   VERIFY( csz01 == 0 );
  46   csz01 = str01.find(str02, 3);
  47   VERIFY( csz01 == npos );
  48   csz01 = str01.find(str03, 0);
  49   VERIFY( csz01 == 8 );
  50   csz01 = str01.find(str03, 3);
  51   VERIFY( csz01 == 8 );
  52   csz01 = str01.find(str03, 12);
  53   VERIFY( csz01 == npos );
  54
  55   // An empty string_view consists of no characters
  56   // therefore it should be found at every point in a string_view,
  57   // except beyond the end
  58   csz01 = str01.find(str04, 0);
  59   VERIFY( csz01 == 0 );
  60   csz01 = str01.find(str04, 5);
  61   VERIFY( csz01 == 5 );
  62   csz01 = str01.find(str04, str01.size());
  63   VERIFY( csz01 == str01.size() );
  64   csz01 = str01.find(str04, str01.size()+1);
  65   VERIFY( csz01 == npos );
  66
  67   // size_type find(const char* s, size_type pos, size_type n) const;
  68   csz01 = str01.find(str_lit01, 0, 3);
  69   VERIFY( csz01 == 0 );
  70   csz01 = str01.find(str_lit01, 3, 0);
  71   VERIFY( csz01 == 3 );
  72
  73   // size_type find(const char* s, size_type pos = 0) const;
  74   csz01 = str01.find(str_lit01);
  75   VERIFY( csz01 == 0 );
  76   csz01 = str01.find(str_lit01, 3);
  77   VERIFY( csz01 == npos );
  78
  79   // size_type find(char c, size_type pos = 0) const;
  80   csz01 = str01.find('z');
  81   csz02 = str01.size() - 1;
  82   VERIFY( csz01 == csz02 );
  83   csz01 = str01.find('/');
  84   VERIFY( csz01 == npos );
  85 }
  86
  87 #ifndef GDB_STRING_VIEW
  88 constexpr bool
  89 test02()
  90 {
  91   typedef std::string_view::size_type csize_type;
  92   typedef std::string_view::const_reference cref;
  93   typedef std::string_view::reference ref;
  94   csize_type npos = std::string_view::npos;
  95   csize_type csz01 = 0, csz02 = 0;
  96
  97   const char str_lit01[] = "mave";
  98   const std::string_view str01("mavericks, santa cruz");
  99   std::string_view str02(str_lit01);
 100   std::string_view str03("s, s");
 101   std::string_view str04;
 102
 103 #undef VERIFY
 104 #define VERIFY(x) if(!(x)) return false
 105
 106   // size_type find(const string_view&, size_type pos = 0) const;
 107   csz01 = str01.find(str01);
 108   VERIFY( csz01 == 0 );
 109   csz01 = str01.find(str01, 4);
 110   VERIFY( csz01 == npos );
 111   csz01 = str01.find(str02, 0);
 112   VERIFY( csz01 == 0 );
 113   csz01 = str01.find(str02, 3);
 114   VERIFY( csz01 == npos );
 115   csz01 = str01.find(str03, 0);
 116   VERIFY( csz01 == 8 );
 117   csz01 = str01.find(str03, 3);
 118   VERIFY( csz01 == 8 );
 119   csz01 = str01.find(str03, 12);
 120   VERIFY( csz01 == npos );
 121
 122   // An empty string_view consists of no characters
 123   // therefore it should be found at every point in a string_view,
 124   // except beyond the end
 125   csz01 = str01.find(str04, 0);
 126   VERIFY( csz01 == 0 );
 127   csz01 = str01.find(str04, 5);
 128   VERIFY( csz01 == 5 );
 129   csz01 = str01.find(str04, str01.size());
 130   VERIFY( csz01 == str01.size() );
 131   csz01 = str01.find(str04, str01.size()+1);
 132   VERIFY( csz01 == npos );
 133
 134   // size_type find(const char* s, size_type pos, size_type n) const;
 135   csz01 = str01.find(str_lit01, 0, 3);
 136   VERIFY( csz01 == 0 );
 137   csz01 = str01.find(str_lit01, 3, 0);
 138   VERIFY( csz01 == 3 );
 139
 140   // size_type find(const char* s, size_type pos = 0) const;
 141   csz01 = str01.find(str_lit01);
 142   VERIFY( csz01 == 0 );
 143   csz01 = str01.find(str_lit01, 3);
 144   VERIFY( csz01 == npos );
 145
 146   // size_type find(char c, size_type pos = 0) const;
 147   csz01 = str01.find('z');
 148   csz02 = str01.size() - 1;
 149   VERIFY( csz01 == csz02 );
 150   csz01 = str01.find('/');
 151   VERIFY( csz01 == npos );
 152
 153   return true;
 154 }
 155 #endif
 156
 157 static int
 158 main ()
 159 {
 160   test01();
 161 #ifndef GDB_STRING_VIEW
 162   static_assert( test02() );
 163 #endif
 164
 165   return 0;
 166 }
 167
 168 } // namespace operations_find_1