text: // 981027 ncm work with libstdc++v3
  
  // Copyright (C) 1997-2017 Free Software Foundation, Inc.
  //
  // This file is part of the GNU ISO C++ Library.  This library is free
  // software; you can redistribute it and/or modify it under the
  // terms of the GNU General Public License as published by the
  // Free Software Foundation; either version 3, or (at your option)
  // any later version.
  
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU General Public License for more details.
  
  // You should have received a copy of the GNU General Public License along
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
  
  #include <sstream>
  #include <locale>
  #include <iomanip>
  #include <testsuite_hooks.h>
  
  struct MyNP : std::numpunct<char>
  {
    std::string do_truename() const;
    std::string do_falsename() const;
  };
  
  std::string
  MyNP::do_truename() const 
  { 
    std::string s("yea"); 
    return s; 
  }
  
  std::string
  MyNP::do_falsename() const 
  { 
    std::string s("nay"); 
    return s; 
  }
  
  void
  test01()
  {
    const char lit[] = "1 0\n"
                       "true false\n"
                       ":  true:\n"
                       ":true  :\n"
                       ": false:\n"
                       ":  1:\n"
                       ":1  :\n"
                       ":  0:\n"
                       "yea nay\n"
                       ":   yea:\n"
                       ":yea   :\n"
                       ":   nay:\n";
  
    std::ostringstream oss;
    oss << true << " " << false << std::endl;
    oss << std::boolalpha;
    oss << true << " " << false << std::endl;
  
    oss << ":" << std::setw(6) << std::internal << true << ":" << std::endl;
    oss << ":" << std::setw(6) << std::left << true << ":" << std::endl;
    oss << ":" << std::setw(6) << std::right << false << ":" << std::endl;
    oss << std::noboolalpha;
    oss << ":" << std::setw(3) << std::internal << true << ":" << std::endl;
    oss << ":" << std::setw(3) << std::left << true << ":" << std::endl;
    oss << ":" << std::setw(3) << std::right << false << ":" << std::endl;
  
    std::locale loc = std::locale(std::locale::classic(), new MyNP);
    oss.imbue(loc);
  
    oss << std::boolalpha;
    oss << true << " " << false << std::endl;
  
    oss << ":" << std::setw(6) << std::internal << true << ":" << std::endl;
    oss << ":" << std::setw(6) << std::left << true << ":" << std::endl;
    oss << ":" << std::setw(6) << std::right << false << ":" << std::endl;
  
    VERIFY( oss.good() );
    VERIFY( oss.str() == lit );
  }
  
  int 
  main() 
  {
    test01();
    return 0;
  }
  