libstdc++-v3/testsuite/experimental/string_view/operations/substr/char/1.cc

   1 // { dg-do run { target c++14 } }
   2
   3 // Copyright (C) 2013-2024 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::substr
  21
  22 #include <experimental/string_view>
  23 #include <stdexcept>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   typedef std::experimental::string_view::size_type csize_type;
  30   typedef std::experimental::string_view::const_reference cref;
  31   typedef std::experimental::string_view::reference ref;
  32   csize_type csz01;
  33
  34   const char str_lit01[] = "rockaway, pacifica";
  35   const std::experimental::string_view str01(str_lit01);
  36   std::experimental::string_view str02;
  37
  38   // basic_string_view<charT, _Traits, _Alloc>
  39   //  substr(size_type pos = 0, size_type n = npos) const;
  40   csz01 = str01.size();
  41   str02 = str01.substr(0, 1);
  42   VERIFY( str02 == "r" );
  43   str02 = str01.substr(10);
  44   VERIFY( str02 == "pacifica" );
  45
  46   try
  47   {
  48     str02 = str01.substr(csz01 + 1);
  49     VERIFY( false );
  50   }
  51   catch(std::out_of_range& fail)
  52   {
  53     VERIFY( true );
  54   }
  55   catch(...)
  56   {
  57     VERIFY( false );
  58   }
  59
  60   try
  61   {
  62     str02 = str01.substr(csz01);
  63     VERIFY( str02.size() == 0 );
  64     VERIFY( str02.begin() == str01.end() );
  65     VERIFY( true );
  66   }
  67   catch(...)
  68   {
  69     VERIFY( false );
  70   }
  71 }
  72
  73 int
  74 main()
  75 {
  76   test01();
  77
  78   return 0;
  79 }