gdb/unittests/basic_string_view/inserters/wchar_t/3.cc

   1 // { dg-options "-std=gnu++17" }
   2
   3 // Copyright (C) 2013-2019 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 // inserters
  21
  22 // NB: This file is predicated on sstreams, istreams, and ostreams
  23 // working, not to mention other major details like char_traits, and
  24 // all of the string_view class.
  25
  26 #include <string_view>
  27 #include <sstream>
  28 #include <iomanip>
  29 #include <testsuite_hooks.h>
  30
  31 void
  32 test09()
  33 {
  34   std::wstring_view foo{L"peace\0\0\0& love"};
  35
  36   std::wostringstream oss1;
  37   oss1 << foo;
  38   VERIFY( oss1.str() == foo );
  39
  40   std::wostringstream oss2;
  41   oss2.width(20);
  42   oss2 << foo;
  43   VERIFY( oss2.str() != foo );
  44   VERIFY( oss2.str().size() == 20 );
  45 }
  46
  47 int
  48 main()
  49 {
  50   test09();
  51
  52   return 0;
  53 }