00001 // Copyright (C) 2007, 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_METAL_BEXPR_HH 00027 # define MLN_METAL_BEXPR_HH 00028 00034 # include <mln/metal/bool.hh> 00035 00036 00037 # define mlc_not( B ) mln::metal::not_< B > 00038 # define mlc_and( B1, B2 ) mln::metal::and_< B1, B2 > 00039 # define mlc_or( B1, B2 ) mln::metal::or_ < B1, B2 > 00040 # define mlc_xor( B1, B2 ) mln::metal::xor_< B1, B2 > 00041 00042 00043 namespace mln 00044 { 00045 00046 namespace metal 00047 { 00048 00050 template <typename B> 00051 struct not_ : bool_<( ! B::value )> 00052 {}; 00053 00054 00056 template <typename L, typename R> 00057 struct and_ : bool_<( L::value && R::value )> 00058 {}; 00059 00060 00062 template <typename L, typename R> 00063 struct or_ : bool_<( L::value || R::value )> 00064 {}; 00065 00066 00068 template <typename L, typename R> 00069 struct xor_ : bool_<( L::value ^ R::value )> 00070 {}; 00071 00072 00073 } // end of namespace mln::metal 00074 00075 } // end of namespace mln 00076 00077 00078 #endif // ! MLN_METAL_BEXPR_HH
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