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_CORE_TRAIT_OP_MULT_HH 00027 # define MLN_CORE_TRAIT_OP_MULT_HH 00028 00037 # define mln_op_mult(T, U) typename mln::trait::op_mult< T , U >::ret 00038 00039 00040 00041 namespace mln 00042 { 00043 00044 namespace algebra 00045 { 00046 00047 template <unsigned n, typename T> 00048 class vec; 00049 00050 template <unsigned n, unsigned m, typename T> 00051 class mat; 00052 00053 } // end of namespace mln::metal 00054 00055 namespace trait 00056 { 00057 00058 template <typename T, typename U> 00059 struct op_mult; 00060 00061 00062 template <typename T> 00063 struct op_mult<T, T> 00064 { 00065 typedef T ret; 00066 }; 00067 00068 template <> 00069 struct op_mult<int, float> 00070 { 00071 typedef float ret; 00072 }; 00073 template <> 00074 struct op_mult<float, int> 00075 { 00076 typedef float ret; 00077 }; 00078 00079 template <> 00080 struct op_mult<int, double> 00081 { 00082 typedef double ret; 00083 }; 00084 template <> 00085 struct op_mult<double, int> 00086 { 00087 typedef double ret; 00088 }; 00089 00090 template <> 00091 struct op_mult<double, float> 00092 { 00093 typedef double ret; 00094 }; 00095 template <> 00096 struct op_mult<float, double> 00097 { 00098 typedef double ret; 00099 }; 00100 00101 template <unsigned n, typename T, typename U> 00102 struct op_mult<algebra::vec<n, T>, U> 00103 { 00104 typedef algebra::vec<n, mln_op_mult(T, U)> ret; 00105 }; 00106 template <typename U, unsigned n, typename T> 00107 struct op_mult<U, algebra::vec<n, T> > 00108 { 00109 typedef algebra::vec<n, mln_op_mult(T, U)> ret; 00110 }; 00111 00112 template <unsigned n, unsigned m, typename T, typename U> 00113 struct op_mult<algebra::mat<n, m, T>, U> 00114 { 00115 typedef algebra::mat<n, m, mln_op_mult(T, U)> ret; 00116 }; 00117 template <typename U, unsigned n, unsigned m, typename T> 00118 struct op_mult<U, algebra::mat<n, m, T> > 00119 { 00120 typedef algebra::mat<n, m, mln_op_mult(T, U)> ret; 00121 }; 00122 00123 template <unsigned n, unsigned o, typename T, unsigned m, typename U> 00124 struct op_mult<algebra::mat<n, o, T>, algebra::mat<o, m, U> > 00125 { 00126 typedef algebra::mat<n, m, mln_op_mult(T, U)> ret; 00127 }; 00128 00129 template <unsigned m, unsigned n, typename T, typename U> 00130 struct op_mult<algebra::mat<m, n, T>, algebra::vec<n, U> > 00131 { 00132 typedef algebra::mat<m, 1, mln_op_mult(T, U)> ret; 00133 }; 00134 00135 template <unsigned n, typename U, unsigned m, typename T> 00136 struct op_mult< algebra::vec<n, U>, algebra::mat<n, m, T> > 00137 { 00138 typedef algebra::mat<1, m, mln_op_mult(T, U)> ret; 00139 }; 00140 00141 00142 } // end of namespace mln::trait 00143 00144 } // end of namespace mln 00145 00146 #endif // ! MLN_CORE_TRAIT_OP_MULT_HH