Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2008, 2009 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_VALUE_MIXIN_HH 00028 # define MLN_VALUE_MIXIN_HH 00029 00030 # include <mln/core/concept/function.hh> 00031 # include <mln/core/concept/image.hh> 00032 # include <mln/value/internal/value_like.hh> 00033 00034 namespace mln 00035 { 00036 00037 namespace value 00038 { 00039 template <typename T, typename F> 00040 struct mixin; 00041 } 00042 00043 namespace trait 00044 { 00045 00046 template <typename T, typename F> 00047 struct value_< mln::value::mixin<T, F> > 00048 : value_< T > // FIXME 00049 { 00050 static const T max() 00051 { 00052 static const F f = F(); 00053 return f.max(); 00054 } 00055 }; 00056 00057 } // end of namespace trait 00058 00059 00060 namespace value 00061 { 00062 00063 template <typename T, typename F> 00064 struct mixin : T // , Value < mixin<T, F> >, internal::value_like_ <T, mln_enc(T), mixin<T, F>, mixin<T, F> > 00065 { 00066 // typedef T value; 00067 00068 mixin() 00069 { 00070 } 00071 00072 mixin(const T& t) 00073 : T(t) 00074 { 00075 } 00076 00077 mixin(const mixin& rhs) 00078 : T(rhs) 00079 { 00080 } 00081 00082 mixin& operator=(const mixin& rhs) 00083 { 00084 // FIXME: (?) Test if (this == &rhs)... 00085 this->T::operator=(rhs); 00086 return *this; 00087 } 00088 00089 mixin& operator=(const T& t) 00090 { 00091 // FIXME: (?) Test if (this == &t)... 00092 this->T::operator=(t); 00093 return *this; 00094 } 00095 }; 00096 00097 } // end of namespace mln::value 00098 00099 00100 template <typename T, typename F> 00101 bool operator < (const value::mixin<T,F>& lhs, const value::mixin<T,F>& rhs) 00102 { 00103 static F f; 00104 return f.less(lhs, rhs); 00105 } 00106 00107 // FIXME : check if there is an operator== in F 00108 00109 // template <typename T, typename F> 00110 // bool operator == (const value::mixin<T,F>& lhs, const value::mixin<T,F>& rhs) 00111 // { 00112 // static F f; 00113 // return f.equal(lhs, rhs); 00114 // } 00115 00116 template <typename T, typename F> 00117 bool operator == (const value::mixin<T,F>& lhs, const value::mixin<T,F>& rhs) 00118 { 00119 static F f; 00120 return !(f.less(lhs, rhs) || f.less(rhs, lhs)); 00121 } 00122 00123 template <typename T, typename F> 00124 bool operator <= (const value::mixin<T,F>& lhs, const value::mixin<T,F>& rhs) 00125 { 00126 static F f; 00127 return f.less(lhs, rhs) || lhs == rhs; 00128 } 00129 00130 template <typename T, typename F> 00131 bool operator > (const value::mixin<T,F>& lhs, const value::mixin<T,F>& rhs) 00132 { 00133 static F f; 00134 return ! (f.less(lhs, rhs) || lhs == rhs); 00135 } 00136 00137 template <typename T, typename F> 00138 bool operator >= (const value::mixin<T,F>& lhs, const value::mixin<T,F>& rhs) 00139 { 00140 static F f; 00141 return ! f.less(lhs, rhs); 00142 } 00143 00144 # ifndef MLN_INCLUDE_ONLY 00145 00146 # endif // MLN_INCLUDE_ONLY 00147 00148 }; // end of namespace mln 00149 00150 #endif // ! MLN_VALUE_MIXIN_HH