LUMIERA.clone/src/lib/refarray.hpp

48 lines
1.3 KiB
C++

/*
REFARRAY.hpp - abstraction providing array-like access to a list of references
Copyright (C) Lumiera.org
2008, Hermann Vosseler <Ichthyostega@web.de>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef LIB_REFARRAY_H
#define LIB_REFARRAY_H
namespace lib {
/**
* Abstraction: Array of const references.
* Typically the return type is an interface,
* and the Implementation wraps some datastructure
* holding subclasses.
*/
template<class E>
struct RefArray
{
virtual E const& operator[] (uint i) const =0;
virtual size_t size() const =0;
virtual ~RefArray() {}
};
} // namespace lib
#endif