libstdc++-v3/testsuite/experimental/string_view/element_access/wchar_t/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 element access
  21
  22 #include <experimental/string_view>
  23 #include <stdexcept>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   typedef std::experimental::wstring_view::size_type csize_type;
  30   typedef std::experimental::wstring_view::const_reference cref;
  31   typedef std::experimental::wstring_view::reference ref;
  32   csize_type csz01, csz02;
  33
  34   const std::experimental::wstring_view str01(L"tamarindo, costa rica");
  35   std::experimental::wstring_view str02(L"41st street beach, capitola, california");
  36   std::experimental::wstring_view str03;
  37
  38   // const_reference operator[] (size_type pos) const;
  39   csz01 = str01.size();
  40   cref cref1 = str01[csz01 - 1];
  41   VERIFY( cref1 == L'a' );
  42   // Undefined behavior at size().
  43   //cref cref2 = str01[csz01];
  44   //VERIFY( cref2 == wchar_t() );
  45
  46   // const_reference at(size_type pos) const;
  47   csz01 = str01.size();
  48   cref cref3 = str01.at(csz01 - 1);
  49   VERIFY( cref3 == L'a' );
  50   try
  51   {
  52     str01.at(csz01);
  53     VERIFY( false ); // Should not get here, as exception thrown.
  54   }
  55   catch (std::out_of_range& fail)
  56   {
  57     VERIFY( true );
  58   }
  59   catch (...)
  60   {
  61     VERIFY( false );
  62   }
  63 }
  64
  65 int
  66 main()
  67 {
  68   test01();
  69
  70   return 0;
  71 }