Dogcows Code - chaz/yoink/blob - src/Moof/cml/quaternion/quaternion_traits.h

   1 /* -*- C++ -*- ------------------------------------------------------------
   2
   3 Copyright (c) 2007 Jesse Anders and Demian Nave http://cmldev.net/
   4
   5 The Configurable Math Library (CML) is distributed under the terms of the
   6 Boost Software License, v1.0 (see cml/LICENSE for details).
   7
   8  *-----------------------------------------------------------------------*/
   9 /** @file
  10  *  @brief
  11  */
  12
  13 #ifndef quaternion_traits_h
  14 #define quaternion_traits_h
  15
  16 #include <cml/et/traits.h>
  17
  18 namespace cml {
  19 namespace et {
  20
  21 /** Expression traits for a quaternion<> type. */
  22 template<typename E, class AT, class OT, class CT>
  23 struct ExprTraits< cml::quaternion<E,AT,OT,CT> >
  24 {
  25     typedef typename cml::quaternion<E,AT,OT,CT>::expr_type expr_type;
  26     typedef typename expr_type::value_type value_type;
  27     typedef typename expr_type::expr_reference reference;
  28     typedef typename expr_type::expr_const_reference const_reference;
  29     typedef typename expr_type::result_tag result_tag;
  30     typedef typename expr_type::size_tag size_tag;
  31     typedef typename expr_type::assignable_tag assignable_tag;
  32     typedef expr_type result_type;
  33     typedef expr_leaf_tag node_tag;
  34
  35     value_type get(const expr_type& v, size_t i) const { return v[i]; }
  36     size_t size(const expr_type& v) const { return 4; }
  37 };
  38
  39 } // namespace et
  40 } // namespace cml
  41
  42 #endif
  43
  44 // -------------------------------------------------------------------------
  45 // vim:ft=cpp