root/trunk/whisperlib/net/rpc/parser/onullstream.h

// Copyright (c) 2009, Whispersoft s.r.l.
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//
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// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Whispersoft s.r.l. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// Author: Cosmin Tudorache

#ifndef __NET_RPC_PARSER_O_NULL_STREAM_H__
#define __NET_RPC_PARSER_O_NULL_STREAM_H__

#include <streambuf>
#include <ostream>
#include <string>

template <class cT, class traits = std::char_traits<cT> >
class basic_nullbuf: public std::basic_streambuf<cT, traits> {
  typename traits::int_type overflow(typename traits::int_type c) {
    return traits::not_eof(c);  // indicate success
  }
};

template <class cT, class traits = std::char_traits<cT> >
class basic_onullstream: public std::basic_ostream<cT, traits> {
 public:
  basic_onullstream():
      std::basic_ios<cT, traits>(&m_sbuf),
      std::basic_ostream<cT, traits>(&m_sbuf) {
    init(&m_sbuf);
  }

 private:
  basic_nullbuf<cT, traits> m_sbuf;
};

typedef basic_onullstream<char> onullstream;
typedef basic_onullstream<wchar_t> wonullstream;

#endif  // __NET_RPC_PARSER_O_NULL_STREAM_H__