93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
/* -*- C++ -*- ------------------------------------------------------------
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Copyright (c) 2007 Jesse Anders and Demian Nave http://cmldev.net/
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The Configurable Math Library (CML) is distributed under the terms of the
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Boost Software License, v1.0 (see cml/LICENSE for details).
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*-----------------------------------------------------------------------*/
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/** @file
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* @brief
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*
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* Defines promotions for the vectors resulting from matrix/vector or
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* vector/matrix ops.
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*
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* @sa matvec_ops::mvmul
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*/
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#ifndef matvec_promotions_h
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#define matvec_promotions_h
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#include <cml/et/scalar_promotions.h>
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#include <cml/vector/vector_promotions.h>
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namespace cml {
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namespace et {
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/* Default mat/vec type promotion template. */
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template<typename LeftT, typename RightT> struct MatVecPromote;
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/** Type promotion for a matrix and a vector. */
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template<
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typename E1, class AT1, typename BO, typename L,
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typename E2, class AT2>
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struct MatVecPromote< cml::matrix<E1,AT1,BO,L>, cml::vector<E2,AT2> >
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{
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typedef cml::matrix<E1,AT1,BO,L> matrix_type;
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typedef cml::vector<E2,AT2> vector_type;
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/* Promote the arrays: */
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typedef typename ArrayPromote<
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typename matrix_type::array_type,
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typename vector_type::array_type
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>::type promoted_array;
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/* The deduced vector result type: */
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typedef cml::vector<
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typename promoted_array::value_type,
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typename promoted_array::generator_type
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> type;
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/* The deduced temporary type: */
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typedef typename type::temporary_type temporary_type;
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/* Note: this is to avoid an "incomplete type" error from ICC9, which
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* can't handle e.g. <X>::<Y>::<Z> when <X> is a template type.
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*/
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};
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/** Type promotion for a vector and a matrix. */
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template<
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typename E1, class AT1,
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typename E2, class AT2, typename BO, typename L>
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struct MatVecPromote< cml::vector<E1,AT1>, cml::matrix<E2,AT2,BO,L> >
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{
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typedef cml::vector<E1,AT1> vector_type;
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typedef cml::matrix<E2,AT2,BO,L> matrix_type;
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/* Promote the arrays: */
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typedef typename ArrayPromote<
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typename vector_type::array_type,
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typename matrix_type::array_type
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>::type promoted_array;
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/* The deduced vector result type: */
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typedef cml::vector<
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typename promoted_array::value_type,
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typename promoted_array::generator_type
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> type;
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/* The deduced temporary type: */
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typedef typename type::temporary_type temporary_type;
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/* Note: this is to avoid an "incomplete type" error from ICC9, which
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* can't handle e.g. <X>::<Y>::<Z> when <X> is a template type.
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*/
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};
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} // namespace et
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} // namespace cml
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#endif
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// -------------------------------------------------------------------------
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// vim:ft=cpp
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