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_LITERAL_WHITE_HH 00028 # define MLN_LITERAL_WHITE_HH 00029 00032 00033 # include <mln/core/concept/literal.hh> 00034 00035 00036 namespace mln 00037 { 00038 00039 namespace literal 00040 { 00041 00043 struct white_t : public Literal<white_t> 00044 { 00045 # ifdef MLN_NEW_VALUE_TYPES 00046 operator float() const; 00047 operator double() const; 00048 # endif // MLN_NEW_VALUE_TYPES 00049 }; 00050 00051 00053 extern const white_t& white; 00054 00055 00056 # ifndef MLN_INCLUDE_ONLY 00057 00058 const white_t& white = white_t(); 00059 00060 # ifdef MLN_NEW_VALUE_TYPES 00061 inline 00062 white_t::operator float() const 00063 { 00064 return 1.f; 00065 } 00066 00067 inline 00068 white_t::operator double() const 00069 { 00070 return 1.; 00071 } 00072 # endif // MLN_NEW_VALUE_TYPES 00073 00074 # endif // ! MLN_INCLUDE_ONLY 00075 00076 } // end of namespace mln::literal 00077 00078 } // end of namespace mln 00079 00080 00081 #endif // ! MLN_LITERAL_WHITE_HH
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