Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_UTIL_INTERNAL_ID2ELEMENT_HH 00027 # define MLN_UTIL_INTERNAL_ID2ELEMENT_HH 00028 00032 00033 #include <mln/core/concept/graph.hh> 00034 #include <mln/core/concept/function.hh> 00035 00036 namespace mln 00037 { 00038 00039 namespace util 00040 { 00041 00042 namespace internal 00043 { 00044 00045 template <typename G, typename Elt> 00046 struct id2element : Function_v2v< id2element<G,Elt> > 00047 { 00048 typedef Elt result; 00049 00050 id2element(); 00051 id2element(const Graph<G>& g); 00052 Elt operator()(unsigned id) const; 00053 00054 G g_; 00055 }; 00056 00057 00058 # ifndef MLN_INCLUDE_ONLY 00059 00060 template <typename G, typename Elt> 00061 inline 00062 id2element<G,Elt>::id2element() 00063 { 00064 } 00065 00066 template <typename G, typename Elt> 00067 inline 00068 id2element<G,Elt>::id2element(const Graph<G>& g) 00069 : g_(exact(g)) 00070 { 00071 } 00072 00073 template <typename G, typename Elt> 00074 inline 00075 Elt 00076 id2element<G,Elt>::operator()(unsigned id) const 00077 { 00078 mln_assertion(g_.is_valid()); 00079 mln_assertion(g_.has(Elt(g_,id))); 00083 return Elt(g_, id); 00084 } 00085 00086 00087 # endif // ! MLN_INCLUDE_ONLY 00088 00089 00090 } // end of namespace mln::util::internal 00091 00092 } // end of namespace mln::util 00093 00094 } // end of namespace mln 00095 00096 00097 #endif // ! MLN_UTIL_INTERNAL_ID2ELEMENT_HH