extl/intelligence/ga/fopti/detail/fopti_fitness_traits_impl.h

   1 /* ///////////////////////////////////////////////////////////////////////
   2  * File:                fopti_fitness_traits_impl.h
   3  *
   4  * Created:             08.09.09
   5  * Updated:             08.09.09
   6  *
   7  * Brief: The fopti_fitness_traits_impl class
   8  *
   9  * [<Home>]
  10  * Copyright (c) 2008-2020, Waruqi All rights reserved.
  11  * //////////////////////////////////////////////////////////////////// */
  12
  13 #ifndef EXTL_INTELLIGENCE_GA_FITNESS_TRAITS_H
  14 #define EXTL_INTELLIGENCE_GA_FITNESS_TRAITS_H
  15
  16 #ifndef __cplusplus
  17 #       error fopti_fitness_traits_impl.h need be supported by c++.
  18 #endif
  19
  20 /* ///////////////////////////////////////////////////////////////////////
  21  * Includes
  22  */
  23 #include "../prefix.h"
  24
  25 /* ///////////////////////////////////////////////////////////////////////
  26  * ::extl::detail namespace
  27  */
  28 EXTL_INTELLIGENCE_BEGIN_WHOLE_NAMESPACE
  29 EXTL_DETAIL_BEGIN_NAMESPACE
  30
  31 template<e_bool_t for_max>
  32 struct for_max_type_wrap{};
  33
  34 template<typename_param_k T>
  35 struct fopti_fitness_traits_impl
  36 {
  37         typedef T                                                               float_type;
  38         typedef for_max_type_wrap<e_true_v>             for_max_selector_type;
  39         typedef for_max_type_wrap<e_false_v>    for_min_selector_type;
  40
  41         // for maximum
  42         static float_type impl(float_type fvalue, float_type fmin, float_type /*fmax*/, for_max_selector_type)
  43         {
  44                 return (fvalue < fmin)? 0 : (fvalue - fmin);
  45         }
  46
  47         // for minimum
  48         static float_type impl(float_type fvalue, float_type /*fmin*/, float_type fmax, for_min_selector_type)
  49         {
  50                 return (fvalue > fmax)? 0 : (fmax - fvalue);
  51         }
  52 };
  53
  54
  55 /* ///////////////////////////////////////////////////////////////////////
  56  * ::extl::detail namespace
  57  */
  58 EXTL_DETAIL_END_NAMESPACE
  59 EXTL_INTELLIGENCE_END_WHOLE_NAMESPACE
  60
  61 /* //////////////////////////////////////////////////////////////////// */
  62 #endif /* EXTL_INTELLIGENCE_GA_FITNESS_TRAITS_H */
  63 /* //////////////////////////////////////////////////////////////////// */