Milena (Olena)  User documentation 2.0a Id
fwd.hh
00001 // Copyright (C) 2007, 2008, 2009, 2011 EPITA Research and Development
00002 // Laboratory (LRDE)
00003 //
00004 // This file is part of Olena.
00005 //
00006 // Olena is free software: you can redistribute it and/or modify it under
00007 // the terms of the GNU General Public License as published by the Free
00008 // Software Foundation, version 2 of the License.
00009 //
00010 // Olena is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013 // General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU General Public License
00016 // along with Olena.  If not, see <http://www.gnu.org/licenses/>.
00017 //
00018 // As a special exception, you may use this file as part of a free
00019 // software project without restriction.  Specifically, if other files
00020 // instantiate templates or use macros or inline functions from this
00021 // file, or you compile this file and link it with other files to produce
00022 // an executable, this file does not by itself cause the resulting
00023 // executable to be covered by the GNU General Public License.  This
00024 // exception does not however invalidate any other reasons why the
00025 // executable file might be covered by the GNU General Public License.
00026 
00027 #ifndef MLN_CANVAS_BROWSING_FWD_HH
00028 # define MLN_CANVAS_BROWSING_FWD_HH
00029 
00033 
00034 # include <mln/core/concept/browsing.hh>
00035 # include <mln/core/concept/image.hh>
00036 
00037 
00038 namespace mln
00039 {
00040 
00041   namespace canvas
00042   {
00043 
00044     namespace browsing
00045     {
00046 
00048 
00073       struct fwd_t : public Browsing< fwd_t >
00074       {
00075         // This default constructor is needed for compilation with gcc
00076         // 4.6.0, gcc 4.6.1 and Clang.
00077         fwd_t();
00078 
00079         template <typename F>
00080         void operator()(F& f) const;
00081       };
00082 
00083       extern const fwd_t fwd;
00084 
00085 # ifndef MLN_INCLUDE_ONLY
00086 
00087 #  ifndef MLN_WO_GLOBAL_VARS
00088 
00089       const fwd_t fwd;
00090 
00091 #  endif // ! MLN_WO_GLOBAL_VARS
00092 
00093 
00094       inline
00095       fwd_t::fwd_t()
00096       {
00097       }
00098 
00099       template <typename F>
00100       inline
00101       void
00102       fwd_t::operator()(F& f) const
00103       {
00104         trace::entering("canvas::browsing::fwd");
00105         mln_precondition(f.input.is_valid());
00106         typedef typename F::I I;
00107         mln_fwd_piter(I) p(f.input.domain());
00108         f.init();
00109         for_all(p)
00110           {
00111             f.p = p;
00112             f.next();
00113           }
00114         f.final();
00115         trace::exiting("canvas::browsing::fwd");
00116       }
00117 
00118 # endif // ! MLN_INCLUDE_ONLY
00119 
00120     } // end of namespace mln::canvas::browsing
00121 
00122   } // end of namespace mln::canvas
00123 
00124 } // end of namespace mln
00125 
00126 
00127 #endif // ! MLN_CANVAS_BROWSING_FWD_HH
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