libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/9.cc

   1 // Copyright (C) 2016-2017 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-std=gnu++17" }
  19 // { dg-do run { target c++17 } }
  20
  21 #include <string>
  22 #include <testsuite_hooks.h>
  23
  24 void
  25 test01()
  26 {
  27   using C = wchar_t;
  28   using string_type = std::basic_string<C>;
  29   using view_type = std::basic_string_view<C>;
  30
  31   std::allocator<C> alloc;
  32   VERIFY( string_type(view_type(L"string")) == L"string" );
  33   VERIFY( string_type(view_type(L"string"), alloc) == L"string" );
  34
  35   // LWG 2742
  36   VERIFY( string_type(L"substring", 3, 6) == L"string" );
  37   VERIFY( string_type(L"substring", 3, 6, alloc) == L"string" );
  38   VERIFY( string_type(view_type(L"substring"), 3, 6) == L"string" );
  39   VERIFY( string_type(view_type(L"substring"), 3, 6, alloc) == L"string" );
  40 }
  41
  42 int
  43 main()
  44 {
  45   test01();
  46 }