AnyObjectBase.h

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/*
 * This file is part of Algorithms library toolkit.
 * Copyright (C) 2017 Jan Travnicek (jan.travnicek@fit.cvut.cz)
 
 * Algorithms library toolkit 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 of the License, or
 * (at your option) any later version.
 
 * Algorithms library toolkit 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 Algorithms library toolkit.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <ext/ostream>
#include <ext/memory>
#include <ext/string>
 
namespace object {
 
class AnyObjectBase {
public:
    AnyObjectBase ( ) = default;
 
    AnyObjectBase ( AnyObjectBase && ) noexcept = default;
 
    AnyObjectBase ( const AnyObjectBase & ) = default;
 
    AnyObjectBase & operator = ( AnyObjectBase && ) noexcept = default;
 
    AnyObjectBase & operator = ( const AnyObjectBase & ) = default;
 
    virtual ~AnyObjectBase ( ) noexcept = default;
 
    virtual AnyObjectBase * clone ( ) const & = 0;
 
    virtual AnyObjectBase * clone ( ) && = 0;
 
    virtual std::strong_ordering operator <=> ( const AnyObjectBase & other ) const = 0;
 
    virtual bool operator == ( const AnyObjectBase & other ) const = 0;
 
    virtual void operator >>( ext::ostream & out ) const = 0;
 
    virtual explicit operator std::string ( ) const = 0;
 
    virtual void increment ( unsigned by ) = 0;
 
    virtual unsigned getId ( ) const = 0;
};
 
} /* namespace object */