tribool-fwd.hh

/* vim: set sw=4 sts=4 et foldmethod=syntax : */
 
/*
 * Copyright (c) 2008, 2009 Ciaran McCreesh
 *
 * This file is part of the Paludis package manager. Paludis is free software;
 * you can redistribute it and/or modify it under the terms of the GNU General
 * Public License version 2, as published by the Free Software Foundation.
 *
 * Paludis 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 PALUDIS_GUARD_PALUDIS_UTIL_TRIBOOL_FWD_HH
#define PALUDIS_GUARD_PALUDIS_UTIL_TRIBOOL_FWD_HH 1
 
#include <paludis/util/attributes.hh>
#include <paludis/util/no_type.hh>
#include <iosfwd>
 
namespace paludis
{
    class Tribool;
 
    typedef NoType<0u> * (* TriboolIndeterminateValueType) (const NoType<0u> * const);
 
    NoType<0u> * indeterminate(const NoType<0u> * const) PALUDIS_VISIBLE;
 
    std::ostream & operator<< (std::ostream &, const Tribool) PALUDIS_VISIBLE;
    std::istream & operator>> (std::istream &, Tribool &) PALUDIS_VISIBLE;
}
 
#endif