[Olena-patches] 684: Oops.

2006-10-25 Thierry GERAUD &lt;theo(a)tegucigalpa.lrde.epita.fr&gt; Oops. * oln/value/two_way.hh: New. Index: oln/value/two_way.hh =================================================================== --- oln/value/two_way.hh (revision 0) +++ oln/value/two_way.hh (revision 0) @@ -0,0 +1,81 @@ +// Copyright (C) 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library 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. +// +// This library 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 library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef OLN_CORE_VALUE_TWO_WAY_HH +# define OLN_CORE_VALUE_TWO_WAY_HH + +# include <iostream> +# include <oln/value/proxy.hh> +# include <oln/core/abstract/functions.hh> + + +namespace oln +{ + + namespace value + { + + template <typename I, typename F> + class two_way : public abstract::proxy< two_way<I,F> > + { + public: + + typedef oln_value(I) value_type; + + // Ctor. + two_way(I& ima, + F fun, + const oln_psite(I)& p); + + // Read. + template <typename V> + operator V() const; + + // Explicit read. + typename F::result_type value() const; + + // Write. + template <typename V> + two_way<I,F>& operator=(const V& value); + + protected: + I ima_; + F fun_; + const oln_psite(I)& p_; + }; + + + template <typename I, typename F> + std::ostream& operator<<(std::ostream& ostr, const two_way<I,F>& proxy); + + + } // end of namespace oln::value + +} // end of namespace oln + + +#endif // ! OLN_CORE_VALUE_TWO_WAY_HH