Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2006, 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_TRAIT_SOLVE_HH 00027 # define MLN_TRAIT_SOLVE_HH 00028 00037 # include <mln/core/category.hh> 00038 # include <mln/metal/equal.hh> 00039 # include <mln/metal/if.hh> 00040 # include <mln/metal/ret.hh> 00041 00042 00043 // FIXME: Just for the record (use it...) 00044 00045 # ifndef MLN_DEBUG_TRAITS 00046 # endif // ! MLN_DEBUG_TRAITS 00047 00048 00049 # define mln_trait_unary(Name, T) typename mln::trait::solve_unary< Name, T >::ret 00050 # define mln_trait_unary_(Name, T) mln::trait::solve_unary< Name, T >::ret 00051 00052 # define mln_trait_binary(Name, T1, T2) typename mln::trait::solve_binary< Name, T1, T2 >::ret 00053 # define mln_trait_binary_(Name, T1, T2) mln::trait::solve_binary< Name, T1, T2 >::ret 00054 00055 00056 00057 namespace mln 00058 { 00059 00060 namespace trait 00061 { 00062 00064 struct not_found {}; 00065 00067 struct undefined {}; 00068 00070 struct multiply_defined {}; 00071 00072 00073 00074 // Unary case. 00075 00076 00077 template < template <class> class Name, 00078 typename T > 00079 struct set_precise_unary_ 00080 { 00081 typedef undefined ret; 00082 }; 00083 00084 00085 template < template <class> class Name, 00086 template <class> class Category_T, typename T > 00087 struct set_unary_ 00088 { 00089 typedef undefined ret; 00090 }; 00091 00092 template < template <class> class Name, 00093 typename T > 00094 struct set_unary_< Name, Unknown, T > // Blocker; top of inheritance. 00095 { 00096 typedef not_found ret; 00097 }; 00098 00099 00100 00101 00102 // Binary case. 00103 00104 00105 template < template <class, class> class Name, 00106 typename L, 00107 typename R > 00108 struct set_precise_binary_ 00109 { 00110 typedef undefined ret; 00111 }; 00112 00113 00114 template < template <class, class> class Name, 00115 template <class> class Category_L, typename L, 00116 template <class> class Category_R, typename R > 00117 struct set_binary_ 00118 { 00119 typedef undefined ret; 00120 }; 00121 00122 template < template <class, class> class Name, 00123 typename L, 00124 template <class> class Category_R, typename R > 00125 struct set_binary_< Name, Unknown, L, Category_R, R > // Left blocker. 00126 { 00127 typedef not_found ret; 00128 }; 00129 00130 template < template <class, class> class Name, 00131 template <class> class Category_L, typename L, 00132 typename R > 00133 struct set_binary_< Name, Category_L, L, Unknown, R > // Right blocker. 00134 { 00135 typedef not_found ret; 00136 }; 00137 00138 template < template <class, class> class Name, 00139 typename L, 00140 typename R > 00141 struct set_binary_< Name, Unknown, L, Unknown, R > // Blocker. 00142 { 00143 typedef not_found ret; 00144 }; 00145 00146 00147 } // end of namespace mln::trait 00148 00149 } // end of namespace mln 00150 00151 00152 # include <mln/trait/solve_unary.hh> 00153 # include <mln/trait/solve_binary.hh> 00154 00155 00156 #endif // ! MLN_TRAIT_SOLVE_HH