Dogcows Code - chaz/yoink/blob - src/moof/cml/et/tags.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 et_tags_h
  14 #define et_tags_h
  15
  16 namespace cml {
  17 namespace et {
  18
  19 /** Tag an expression as returning a scalar. */
  20 struct scalar_result_tag {};
  21
  22 /** Tag an expression as returning a vector. */
  23 struct vector_result_tag {};
  24
  25 /** Tag an expression as returning a matrix. */
  26 struct matrix_result_tag {};
  27
  28 /** Tag an expression as returning a quaternion. */
  29 struct quaternion_result_tag {};
  30
  31 /** Marker for unary expression ops. */
  32 struct unary_expression {};
  33
  34 /** Marker for biary expression ops. */
  35 struct binary_expression {};
  36
  37 /** Marker for expression tree operator nodes. */
  38 struct expr_node_tag {};
  39
  40 /** Marker for expression tree terminals (leaves). */
  41 struct expr_leaf_tag {};
  42
  43 /** Marker for assignable types. */
  44 struct assignable_tag {};
  45
  46 /** Marker for assignable types. */
  47 struct not_assignable_tag {};
  48
  49 } // namespace et
  50 } // namespace cml
  51
  52 #endif
  53
  54 // -------------------------------------------------------------------------
  55 // vim:ft=cpp