Dogcows Code - chaz/yoink/blob - src/cml/vector/vector_functions.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 vector_functions_h
  14 #define vector_functions_h
  15
  16 namespace cml {
  17
  18 /** Squared length of a vector. */
  19 template<typename E, class AT>
  20 inline typename vector<E,AT>::value_type
  21 length_squared(const vector<E,AT>& arg)
  22 {
  23     return arg.length_squared();
  24 }
  25
  26 /** Squared length of a vector expr. */
  27 template<typename XprT>
  28 inline typename XprT::value_type
  29 length_squared(VECXPR_ARG_TYPE arg)
  30 {
  31     return arg.length_squared();
  32 }
  33
  34 /** Length of a vector. */
  35 template<typename E, class AT>
  36 inline typename vector<E,AT>::value_type
  37 length(const vector<E,AT>& arg)
  38 {
  39     return arg.length();
  40 }
  41
  42 /** Length of a vector expr. */
  43 template<typename XprT>
  44 inline typename XprT::value_type
  45 length(VECXPR_ARG_TYPE arg)
  46 {
  47     return arg.length();
  48 }
  49
  50 /** Normalize a vector. */
  51 template<typename E, class AT>
  52 inline vector<E, AT>
  53 normalize(const vector<E,AT>& arg)
  54 {
  55     vector<E, AT> result(arg);
  56     result.normalize();
  57     return result;
  58 }
  59
  60 /** Normalize a vector expr. */
  61 template<typename XprT>
  62 inline typename XprT::result_type
  63 normalize(VECXPR_ARG_TYPE arg)
  64 {
  65     return arg.normalize();
  66 }
  67
  68 } // namespace cml
  69
  70 #endif
  71
  72 // -------------------------------------------------------------------------
  73 // vim:ft=cpp