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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_stringbuf / overflow / char / 2.cc

// 1999-10-11 bkoz

// Copyright (C) 1999-2016 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/>.


// 27.5.2 template class basic_streambuf

#include <sstream>
#include <ostream>
#include <testsuite_hooks.h>

// test03
// http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00151.html
template<typename charT, typename traits = std::char_traits<charT> >
  class basic_nullbuf : public std::basic_stringbuf<charT, traits>
  {
  protected:
    typedef typename
      std::basic_stringbuf<charT, traits>::int_type int_type;
    virtual int_type 
    overflow(int_type c) 
    {  return traits::not_eof(c); }
  };

typedef basic_nullbuf<char> nullbuf;

template<typename T>
  char
  print(const T& x) 
  {
   nullbuf ob;
   std::ostream out(&ob); 
   out << x << std::endl;
   return (!out ? '0' : '1');
 }

void test03() 
{
  bool test __attribute__((unused)) = true;
  const std::string control01("11111");
  std::string test01;

  test01 += print(true);
  test01 += print(3.14159);
  test01 += print(10);
  test01 += print('x');
  test01 += print("pipo");

  VERIFY( test01 == control01 );
}

int main() 
{
  test03();
  return 0;
}