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_ACCU_INTERNAL_COUPLE_HH 00027 # define MLN_ACCU_INTERNAL_COUPLE_HH 00028 00032 00033 # include <utility> 00034 00035 # include <mln/core/concept/accumulator.hh> 00036 # include <mln/accu/internal/base.hh> 00037 00038 # include <mln/metal/equal.hh> 00039 00040 00041 namespace mln 00042 { 00043 00044 namespace accu 00045 { 00046 00047 namespace internal 00048 { 00049 00055 template <typename A1, typename A2, typename R, typename E> 00056 class couple 00057 : public base<R,E>, 00058 public mlc_equal(mln_argument(A1), mln_argument(A2))::check_t 00059 { 00060 public: 00061 typedef mln_argument(A1) argument; 00062 00065 void init(); 00066 void take_as_init(const argument& t); 00067 void take(const argument& t); 00068 void take(const E& other); 00070 00073 bool is_valid() const; 00074 00075 A1& first(); 00076 A2& second(); 00077 const A1& first() const; 00078 const A2& second() const; 00079 00080 protected: 00081 couple(); 00082 00083 A1 a1_; 00084 A2 a2_; 00085 }; 00086 00087 00088 # ifndef MLN_INCLUDE_ONLY 00089 00090 template <typename A1, typename A2, typename R, typename E> 00091 inline 00092 couple<A1,A2,R,E>::couple() 00093 { 00094 init(); 00095 } 00096 00097 template <typename A1, typename A2, typename R, typename E> 00098 inline 00099 void 00100 couple<A1,A2,R,E>::init() 00101 { 00102 a1_.init(); 00103 a2_.init(); 00104 } 00105 00106 template <typename A1, typename A2, typename R, typename E> 00107 inline 00108 void 00109 couple<A1,A2,R,E>::take_as_init(const argument& t) 00110 { 00111 a1_.take_as_init(t); 00112 a2_.take_as_init(t); 00113 } 00114 00115 template <typename A1, typename A2, typename R, typename E> 00116 inline 00117 void 00118 couple<A1,A2,R,E>::take(const argument& t) 00119 { 00120 a1_.take(t); 00121 a2_.take(t); 00122 } 00123 00124 template <typename A1, typename A2, typename R, typename E> 00125 inline 00126 void 00127 couple<A1,A2,R,E>::take(const E& other) 00128 { 00129 a1_.take(other.a1_); 00130 a2_.take(other.a2_); 00131 } 00132 00133 template <typename A1, typename A2, typename R, typename E> 00134 inline 00135 bool 00136 couple<A1,A2,R,E>::is_valid() const 00137 { 00138 return a1_.is_valid() && a2_.is_valid(); 00139 } 00140 00141 template <typename A1, typename A2, typename R, typename E> 00142 inline 00143 A1& 00144 couple<A1,A2,R,E>::first() 00145 { 00146 return a1_; 00147 } 00148 00149 template <typename A1, typename A2, typename R, typename E> 00150 inline 00151 const A1& 00152 couple<A1,A2,R,E>::first() const 00153 { 00154 return a1_; 00155 } 00156 00157 template <typename A1, typename A2, typename R, typename E> 00158 inline 00159 A2& 00160 couple<A1,A2,R,E>::second() 00161 { 00162 return a2_; 00163 } 00164 00165 template <typename A1, typename A2, typename R, typename E> 00166 inline 00167 const A2& 00168 couple<A1,A2,R,E>::second() const 00169 { 00170 return a2_; 00171 } 00172 00173 # endif // ! MLN_INCLUDE_ONLY 00174 00175 } // end of namespace mln::accu::internal 00176 00177 } // end of namespace mln::accu 00178 00179 } // end of namespace mln 00180 00181 00182 #endif // ! MLN_ACCU_INTERNAL_COUPLE_HH