cloner.h

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#ifndef CLONER_H
#define CLONER_H
#pragma once
/***************************************************************************
 *   Copyright (C) 2007-2013 Mike Kinghan, imk@burroingroingjoing.com      *
 *   All rights reserved.                                                  *
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 *   Contributed originally by Mike Kinghan, imk@burroingroingjoing.com    *
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template<class B, class D>
struct cloner : B
{
    B *clone() const override {
        return new D(dynamic_cast<D const&>(*this));
    }
    ~cloner() override {}

    template<typename... Args>
    explicit cloner(Args... args)
    : B(args...){}
};

#endif //EOF