[Olena-patches] 2995: Add big_chess functor.

https://svn.lrde.epita.fr/svn/oln/trunk/milena Index: ChangeLog from Ugo Jardonnet &lt;ugo.jardonnet(a)lrde.epita.fr&gt; Add big_chess functor. * mln/fun/p2b/big_chess.hh: Add this functor. big_chess.hh | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) Index: mln/fun/p2b/big_chess.hh --- mln/fun/p2b/big_chess.hh (revision 0) +++ mln/fun/p2b/big_chess.hh (revision 0) @@ -0,0 +1,95 @@ +// Copyright (C) 2008 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 MLN_FUN_P2B_BIG_CHESS_HH +# define MLN_FUN_P2B_BIG_CHESS_HH + +/*! \file mln/fun/p2b/big_chess.hh + * + * \brief FIXME. + */ + +# include <mln/core/concept/function.hh> +# include <mln/core/alias/point2d.hh> + + +namespace mln +{ + + namespace fun + { + + namespace p2b + { + + // FIXME: Doc! + template <typename B> + struct big_chess : public Function_p2b< big_chess<B> > + { + typedef bool result; + typedef mln_psite(B) P; + + big_chess(const B& box, const unsigned div); + + bool operator()(const P& p) const; + + const B& box; + const unsigned div; + }; + + +# ifndef MLN_INCLUDE_ONLY + + template < typename B> + big_chess<B>::big_chess(const B& box, const unsigned div) + : box(box), div(div) + { + } + + template < typename B> + inline + bool + big_chess<B>::operator()(const P& p) const + { + mln_coord(P) ret = 0; + + for (short i = 0; i < P::dim; i++) + ret += p[i] / ((box.pmax()[i] - 1) / div); + + return ret % 2; + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::fun::p2b + + } // end of namespace mln::fun + +} // end of namespace mln + + +#endif // ! MLN_FUN_P2B_BIG_CHESS_HH