null_stream.hxx

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// This file is part of Awali.
// Copyright 2016-2022 Sylvain Lombardy, Victor Marsault, Jacques Sakarovitch
//
// Awali is a 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 of the License, or
// (at your option) any later version.
//
// This program 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 program. If not, see <http://www.gnu.org/licenses/>.
 
#ifndef AWALI_STTC_NULL_STREAM
#define AWALI_STTC_NULL_STREAM
#include<iostream>
 
class null_buffer_t : public std::streambuf {
 public:
  int overflow(int c) {
    return c;
  }
};
class null_stream_t : public std::ostream {
 public:
  null_stream_t() : std::ostream(&m_sb) {}
 private:
  null_buffer_t m_sb;
};
 
null_stream_t null_stream;
 
#endif