+++ /dev/null
-/* -*- C++ -*- ------------------------------------------------------------
-
-Copyright (c) 2007 Jesse Anders and Demian Nave http://cmldev.net/
-
-The Configurable Math Library (CML) is distributed under the terms of the
-Boost Software License, v1.0 (see cml/LICENSE for details).
-
- *-----------------------------------------------------------------------*/
-/** @file
- * @brief
- */
-
-#ifndef quaternion_promotions_h
-#define quaternion_promotions_h
-
-#include <cml/et/scalar_promotions.h>
-#include <cml/vector/vector_promotions.h>
-
-namespace cml {
-namespace et {
-
-/* Default quaternion type promotion templates. */
-template<class LeftT, class RightT> struct QuaternionPromote;
-
-/** Type promotion for two quaternion types. */
-template<typename E1, class AT1, typename E2, class AT2, class OT, class CT>
-struct QuaternionPromote<
- cml::quaternion<E1,AT1,OT,CT>,
- cml::quaternion<E2,AT2,OT,CT>
->
-{
- /* The deduced vector type: */
- typedef typename VectorPromote<
- typename cml::quaternion<E1,AT1,OT,CT>::vector_type,
- typename cml::quaternion<E2,AT2,OT,CT>::vector_type
- >::type promoted_vector;
-
- /* The deduced element and storage types: */
- typedef typename promoted_vector::value_type value_type;
- typedef typename promoted_vector::storage_type storage_type;
-
- /* The deduced quaternion result type: */
- typedef cml::quaternion<value_type,storage_type,OT,CT> type;
-
- /* The temporary type: */
- typedef typename type::temporary_type temporary_type;
-};
-
-/**
- * NOTE: QuaternionPromote* are somewhat ad hoc, and were added to
- * simplify the code for quaternion slerp/squad/etc.
- */
-
-/** Type promotion for two quaternion types. */
-template < class Quat1_T, class Quat2_T >
-struct QuaternionPromote2
-{
- typedef typename QuaternionPromote<
- typename Quat1_T::temporary_type, typename Quat2_T::temporary_type
- >::temporary_type temporary_type;
- typedef typename temporary_type::value_type value_type;
-};
-
-/** Type promotion for three quaternion types. */
-template < class Quat1_T, class Quat2_T, class Quat3_T >
-struct QuaternionPromote3
-{
- typedef typename QuaternionPromote<
- typename Quat1_T::temporary_type,
- typename QuaternionPromote<
- typename Quat2_T::temporary_type, typename Quat3_T::temporary_type
- >::temporary_type
- >::temporary_type temporary_type;
- typedef typename temporary_type::value_type value_type;
-};
-
-/** Type promotion for four quaternion types. */
-template < class Quat1_T, class Quat2_T, class Quat3_T, class Quat4_T >
-struct QuaternionPromote4
-{
- typedef typename QuaternionPromote<
- typename Quat1_T::temporary_type,
- typename QuaternionPromote<
- typename Quat2_T::temporary_type,
- typename QuaternionPromote<
- typename Quat3_T::temporary_type,
- typename Quat4_T::temporary_type
- >::temporary_type
- >::temporary_type
- >::temporary_type temporary_type;
- typedef typename temporary_type::value_type value_type;
-};
-
-/** Type promotion for a quaternion and a scalar. */
-template<typename E, class AT, class OT, class CT, typename S>
-struct QuaternionPromote<cml::quaternion<E,AT,OT,CT>, S>
-{
- /* The deduced vector type: */
- typedef typename VectorPromote<
- typename quaternion<E,AT,OT,CT>::vector_type, S
- >::type promoted_vector;
-
- /* The deduced element and storage types: */
- typedef typename promoted_vector::value_type value_type;
- typedef typename promoted_vector::storage_type storage_type;
-
- /* The deduced quaternion result type: */
- typedef cml::quaternion<value_type,storage_type,OT,CT> type;
-
- /* The temporary type: */
- typedef typename type::temporary_type temporary_type;
-};
-
-/** Type promotion for a scalar and a quaternion. */
-template<class S, typename E, class AT, class OT, class CT>
-struct QuaternionPromote<S, cml::quaternion<E,AT,OT,CT> >
-{
- /* The deduced vector type: */
- typedef typename VectorPromote<
- S, typename quaternion<E,AT,OT,CT>::vector_type
- >::type promoted_vector;
-
- /* The deduced element and storage types: */
- typedef typename promoted_vector::value_type value_type;
- typedef typename promoted_vector::storage_type storage_type;
-
- /* The deduced quaternion result type: */
- typedef cml::quaternion<value_type,storage_type,OT,CT> type;
-
- /* The temporary type: */
- typedef typename type::temporary_type temporary_type;
-};
-
-} // namespace et
-} // namespace cml
-
-#endif
-
-// -------------------------------------------------------------------------
-// vim:ft=cpp