libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/9318-in.cc

   1 // Copyright (C) 2004-2023 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
  19 // 27.5.2 template class basic_streambuf
  20
  21 #include <sstream>
  22 #include <istream>
  23 #include <testsuite_hooks.h>
  24
  25 // libstdc++/9318
  26 class Outbuf : public std::wstreambuf
  27 {
  28 public:
  29   typedef std::wstreambuf::traits_type traits_type;
  30
  31   std::wstring result() const { return str; }
  32
  33 protected:
  34   virtual int_type overflow(int_type c = traits_type::eof())
  35   {
  36     if (!traits_type::eq_int_type(c, traits_type::eof()))
  37       str.push_back(traits_type::to_char_type(c));
  38     return traits_type::not_eof(c);
  39   }
  40
  41 private:
  42   std::wstring str;
  43 };
  44
  45 void test09()
  46 {
  47   std::wistringstream stream(L"Bad Moon Rising");
  48   Outbuf buf;
  49   stream >> &buf;
  50
  51   VERIFY( buf.result() == L"Bad Moon Rising" );
  52 }
  53
  54 int main()
  55 {
  56   test09();
  57   return 0;
  58 }