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_ACCU_INTERNAL_BASE_HH 00028 # define MLN_ACCU_INTERNAL_BASE_HH 00029 00034 00035 # include <mln/core/concept/accumulator.hh> 00036 00037 namespace mln 00038 { 00039 00040 namespace accu 00041 { 00042 00043 namespace internal 00044 { 00045 00048 template <typename R, typename E> 00049 class base : public Accumulator<E>, 00050 public mln::internal::proxy_impl< R, E > 00051 { 00052 public: 00053 00054 // As a proxy: 00055 R subj_(); 00056 00057 // As an accumulator: 00058 typedef R q_result; 00059 typedef mlc_unqualif(R) result; 00060 00061 protected: 00062 base(); 00063 }; 00064 00065 00066 # ifndef MLN_INCLUDE_ONLY 00067 00068 template <typename R, typename E> 00069 inline 00070 base<R,E>::base() 00071 { 00072 } 00073 00074 template <typename R, typename E> 00075 inline 00076 R 00077 base<R,E>::subj_() 00078 { 00079 return exact(this)->to_result(); 00080 } 00081 00082 # endif // ! MLN_INCLUDE_ONLY 00083 00084 } // end of namespace mln::accu::internal 00085 00086 } // end of namespace mln::accu 00087 00088 } // end of namespace mln 00089 00090 00091 #endif // ! MLN_ACCU_INTERNAL_BASE_HH
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