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

   1 // { dg-options "-std=gnu++1y" }
   2
   3 // Copyright (C) 2013 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 bool
  27 test01()
  28 {
  29   bool test [[gnu::unused]] = true;
  30
  31   typedef std::experimental::wstring_view::size_type csize_type;
  32   typedef std::experimental::wstring_view::const_reference cref;
  33   typedef std::experimental::wstring_view::reference ref;
  34   csize_type csz01;
  35
  36   const wchar_t str_lit01[] = L"rockaway, pacifica";
  37   const std::experimental::wstring_view str01(str_lit01);
  38   std::experimental::wstring_view str02;
  39
  40   // basic_string_view<charT, _Traits, _Alloc>
  41   //  substr(size_type pos = 0, size_type n = npos) const;
  42   csz01 = str01.size();
  43   str02 = str01.substr(0, 1);
  44   VERIFY( str02 == L"r" );
  45   str02 = str01.substr(10);
  46   VERIFY( str02 == L"pacifica" );
  47
  48   try
  49   {
  50     str02 = str01.substr(csz01 + 1);
  51     VERIFY( false );
  52   }
  53   catch(std::out_of_range& fail)
  54   {
  55     VERIFY( true );
  56   }
  57   catch(...)
  58   {
  59     VERIFY( false );
  60   }
  61
  62   try
  63   {
  64     str02 = str01.substr(csz01);
  65     VERIFY( str02.size() == 0 );
  66   }
  67   catch(std::out_of_range& fail)
  68   {
  69     VERIFY( true ); // No terminating null in basic_string_view
  70   }
  71   catch(...)
  72   {
  73     VERIFY( false );
  74   }
  75
  76   return test;
  77 }
  78
  79 int
  80 main()
  81 {
  82   test01();
  83
  84   return 0;
  85 }