Milena (Olena)
User documentation 2.0a Id
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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_PW_VALUE_HH 00027 # define MLN_PW_VALUE_HH 00028 00032 00033 # include <mln/fun/internal/selector.hh> 00034 # include <mln/core/concept/image.hh> 00035 00036 00037 00038 namespace mln 00039 { 00040 00041 namespace pw 00042 { 00043 00044 00045 // FIXME: Doc! 00046 00047 template <typename I> 00048 struct value_ 00049 : fun::internal::selector_from_result_< mln_value(I), value_<I> >::ret 00050 { 00051 typedef mln_value(I) result; 00052 00053 value_(); 00054 value_(const I& ima); 00055 00056 mln_rvalue(I) operator()(const mln_psite(I)& p) const; 00057 00058 protected: 00059 const I* ima_; 00060 }; 00061 00062 00063 00064 // FIXME: Doc! 00065 00066 template <typename I> 00067 value_<I> value(const Image<I>& ima); 00068 00069 00070 00071 # ifndef MLN_INCLUDE_ONLY 00072 00073 // pw::value_<I> 00074 00075 template <typename I> 00076 inline 00077 value_<I>::value_() 00078 : ima_(0) 00079 { 00080 } 00081 00082 template <typename I> 00083 inline 00084 value_<I>::value_(const I& ima) 00085 : ima_(&ima) 00086 { 00087 } 00088 00089 template <typename I> 00090 inline 00091 mln_rvalue(I) 00092 value_<I>::operator()(const mln_psite(I)& p) const 00093 { 00094 mln_precondition(ima_ != 0); 00095 mln_precondition(ima_->has(p)); 00096 return (*ima_)(p); 00097 } 00098 00099 00100 // pw::value(ima) 00101 00102 template <typename I> 00103 inline 00104 value_<I> 00105 value(const Image<I>& ima) 00106 { 00107 mln_precondition(exact(ima).is_valid()); 00108 value_<I> tmp(exact(ima)); 00109 return tmp; 00110 } 00111 00112 # endif // ! MLN_INCLUDE_ONLY 00113 00114 } // end of namespace mln::pw 00115 00116 } // end of namespace mln 00117 00118 00119 #endif // ! MLN_PW_VALUE_HH