lumiera_/src/lib/several.hpp

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/*
SEVERAL.hpp - abstraction providing a limited fixed number of elements
Copyright (C) Lumiera.org
2008, Hermann Vosseler <Ichthyostega@web.de>
2024, 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.
*/
/** @file several.hpp
** Abstraction interface: array-like access by subscript
** @todo as of 2016, this concept seems very questionable: do we _really_ want
** to abstract over random access, or do we _actually_ want for-iteration??
** @warning WIP-WIP-WIP in rework 5/2025
** @see several-builder.hpp
*/
#ifndef LIB_SEVERAL_H
#define LIB_SEVERAL_H
#include "lib/nocopy.hpp"
namespace lib {
/**
* Abstraction: Array of const references.
* Typically the return type is an interface,
* and the Implementation wraps some datastructure
* holding subclasses.
* @todo ouch -- a collection that isn't iterable... ///////////////////////TICKET #1040
* @warning in rework 5/2025
*/
template<class T>
class RefArray
: util::NonCopyable
{
public:
virtual ~RefArray() {} ///< this is an interface
virtual T const& operator[] (size_t i) const =0;
virtual size_t size() const =0;
};
} // namespace lib
#endif