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_FUN_ACCU_RESULT_HH 00028 # define MLN_FUN_ACCU_RESULT_HH 00029 00030 # include <mln/fun/unary.hh> 00031 # include <mln/core/concept/accumulator.hh> 00032 00033 namespace mln 00034 { 00035 00036 // accu_result: return result of given accumulator. 00037 namespace fun 00038 { 00039 00040 struct accu_result : unary<accu_result> 00041 { 00042 }; 00043 00044 } // end of namespace mln::fun 00045 00046 namespace trait 00047 { 00048 00049 namespace next 00050 { 00051 template <typename E> 00052 struct set_unary_<fun::accu_result, Accumulator, E> 00053 { 00054 typedef set_unary_ ret; 00055 typedef typename E::result result; 00056 typedef mln::Accumulator<E> argument; 00057 00058 static result read(const argument& x) 00059 { 00060 return exact(x).to_result(); 00061 } 00062 }; 00063 00064 } // end of namespace mln::trait::next 00065 00066 } // end of namespace mln::trait 00067 00068 } // end of namespace mln 00069 00070 #endif // ! MLN_FUN_ACCU_RESULT_HH
1.7.1