istream_flag_resetter.hpp

/*
 *  Copyright (C) 1998 Marcel Bosc  (C) Copyright Paul Moore 1999
 *  This class is copied from boost/rational
 *
 * This program 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifndef _istream_flag_resetter_hpp
#define _istream_flag_resetter_hpp
#include <iostream>
#include <iomanip>
struct istream_flag_resetter 
{
    istream_flag_resetter(std::istream& is) : is_(is), f_(is.flags()) {}
    ~istream_flag_resetter() { is_.flags(f_); }
    std::istream& is_;
    std::istream::fmtflags f_;      // old GNU c++ lib has no ios_base
};


#endif // _istream_flag_resetter_hpp

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