00001 // Copyright (C) 2007, 2008, 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_CORE_CONCEPT_VALUE_HH 00027 # define MLN_CORE_CONCEPT_VALUE_HH 00028 00033 # include <mln/core/concept/object.hh> 00034 # include <mln/trait/value_.hh> 00035 00036 00037 namespace mln 00038 { 00039 00040 // Fwd decl. 00041 template <typename E> struct Value; 00042 00043 // Value category flag type. 00044 template <> 00045 struct Value<void> 00046 { 00047 typedef Object<void> super; 00048 }; 00049 00050 00056 template <typename E> 00057 struct Value : public Object<E> 00058 { 00059 typedef Value<void> category; 00060 00061 /* 00062 typedef enc; // encoding type 00063 typedef equiv; // equivalent type 00064 00065 equiv to_equiv() const; // go to equivalent value 00066 */ 00067 00068 protected: 00069 Value(); 00070 }; 00071 00072 00073 00074 # ifndef MLN_INCLUDE_ONLY 00075 00076 template <typename E> 00077 inline 00078 Value<E>::Value() 00079 { 00080 typedef mln_enc(E) enc; 00081 typedef mln_equiv(E) equiv; 00082 // FIXME HERE 00083 // equiv (E::*m)() const = & E::to_equiv; 00084 // m = 0; 00085 } 00086 00087 # endif // ! MLN_INCLUDE_ONLY 00088 00089 } // end of namespace mln 00090 00091 00092 //# include <mln/value/cast.hh> 00093 00094 00095 #endif // ! MLN_CORE_CONCEPT_VALUE_HH
1.7.1