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_FUN_V2V_WRAP_HH 00027 # define MLN_FUN_V2V_WRAP_HH 00028 00037 00038 # include <mln/core/concept/function.hh> 00039 00040 00041 namespace mln 00042 { 00043 00044 namespace fun 00045 { 00046 00047 namespace v2v 00048 { 00049 00050 template <typename L> 00051 struct wrap : public Function_v2v< wrap<L> > 00052 { 00053 public: 00054 00055 typedef L result; 00056 00057 template <typename L_> 00058 L operator()(const L_& l_) const; 00059 00060 }; 00061 00062 00063 # ifndef MLN_INCLUDE_ONLY 00064 00065 template <typename L> 00066 template <typename L_> 00067 inline 00068 L 00069 wrap<L>::operator()(const L_& l_) const 00070 { 00071 mlc_converts_to(L_, unsigned long)::check(); 00072 unsigned long l = static_cast<unsigned long>(l_); 00073 return l == 0ul ? L(0ul) : L(1 + (l - 1) % 255); 00074 } 00075 00076 # endif // ! MLN_INCLUDE_ONLY 00077 00078 } // end of namespace mln::fun::v2v 00079 00080 } // end of namespace mln::fun 00081 00082 } // end of namespace mln 00083 00084 00085 #endif // ! MLN_FUN_V2V_WRAP_HH
1.7.1