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

   1 // { dg-do run { target c++14 } }
   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 constructors.
  21
  22 #include <experimental/string_view>
  23 #include <string>
  24 #include <cwchar>
  25 #include <testsuite_hooks.h>
  26
  27 void
  28 test01()
  29 {
  30   typedef std::experimental::wstring_view::size_type csize_type;
  31
  32   // basic_string_view()
  33   const std::experimental::wstring_view str00{};
  34   VERIFY( str00.length() == 0 );
  35   VERIFY( str00.data() == nullptr );
  36
  37   // basic_string_view(const char*)
  38   const wchar_t str_lit01[] = L"rodeo beach, marin";
  39   const std::experimental::wstring_view str01{str_lit01};
  40   VERIFY( str01.length() == 18 );
  41   VERIFY( str01.data() == str_lit01 );
  42   const std::experimental::wstring_view str02{L"baker beach, san francisco"};
  43   VERIFY( str02.length() == 26 );
  44
  45   // basic_string_view(const string_view&)
  46   std::experimental::wstring_view str04{str01};
  47   VERIFY( str04.length() == str01.length() );
  48   VERIFY( str04.data() == str01.data() );
  49
  50   // basic_string_view(const char* s)
  51   csize_type len_lit01 = wcslen(str_lit01);
  52   std::experimental::wstring_view str05{str_lit01, len_lit01};
  53   VERIFY( str05.length() == len_lit01 );
  54   VERIFY( str05.data() == str_lit01 );
  55
  56   // basic_string_view(basic_string& s)
  57   std::wstring istr07(10, L'z');
  58   std::experimental::wstring_view str07{istr07};
  59   VERIFY( str07.length() == 10 );
  60 }
  61
  62 int
  63 main()
  64 {
  65   test01();
  66
  67   return 0;
  68 }