ceph/src/boost/libs/qvm/include/boost/qvm/deduce_mat.hpp

   1 //Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc.
   2
   3 //Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef UUID_C5DC682E196211E0A4C1686BDFD72085
   7 #define UUID_C5DC682E196211E0A4C1686BDFD72085
   8
   9 #include <boost/qvm/deduce_scalar.hpp>
  10 #include <boost/qvm/mat_traits.hpp>
  11 #include <boost/qvm/static_assert.hpp>
  12
  13 namespace
  14 boost
  15     {
  16     namespace
  17     qvm
  18         {
  19         template <class T,int Rows,int Cols>
  20         struct mat;
  21
  22         namespace
  23         qvm_detail
  24             {
  25             template <class M,int R,int C,
  26                 int MR=mat_traits<M>::rows,
  27                 int MC=mat_traits<M>::cols>
  28             struct
  29             deduce_mat_default
  30                 {
  31                 BOOST_QVM_STATIC_ASSERT(is_mat<M>::value);
  32                 typedef mat<typename mat_traits<M>::scalar_type,R,C> type;
  33                 };
  34
  35             template <class M,int R,int C>
  36             struct
  37             deduce_mat_default<M,R,C,R,C>
  38                 {
  39                 BOOST_QVM_STATIC_ASSERT(is_mat<M>::value);
  40                 typedef M type;
  41                 };
  42             }
  43
  44         template <class Type,int Rows=mat_traits<Type>::rows,int Cols=mat_traits<Type>::cols>
  45         struct
  46         deduce_mat
  47             {
  48             BOOST_QVM_STATIC_ASSERT(is_mat<Type>::value);
  49             typedef typename qvm_detail::deduce_mat_default<Type,Rows,Cols>::type type;
  50             };
  51
  52         namespace
  53         qvm_detail
  54             {
  55             template <class A,class B,int R,int C,
  56                 bool VA=is_mat<A>::value,
  57                 bool VB=is_mat<B>::value,
  58                 int AR=mat_traits<A>::rows,
  59                 int AC=mat_traits<A>::cols,
  60                 int BR=mat_traits<B>::rows,
  61                 int BC=mat_traits<B>::cols>
  62             struct
  63             deduce_m2_default
  64                 {
  65                 typedef mat<
  66                     typename deduce_scalar<
  67                         typename scalar<A>::type,
  68                         typename scalar<B>::type>::type,
  69                     R,C> type;
  70                 };
  71
  72             template <class M,int R,int C>
  73             struct
  74             deduce_m2_default<M,M,R,C,true,true,R,C,R,C>
  75                 {
  76                 typedef M type;
  77                 };
  78             }
  79
  80         template <class A,class B,int R,int C>
  81         struct
  82         deduce_mat2
  83             {
  84             BOOST_QVM_STATIC_ASSERT(is_mat<A>::value || is_mat<B>::value);
  85             typedef typename qvm_detail::deduce_m2_default<A,B,R,C>::type type;
  86             };
  87         }
  88     }
  89
  90 #endif