Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of Boost. Click here to view this page for the latest version.

Struct template trivial_value_traits



// In header: <boost/intrusive/trivial_value_traits.hpp>

template<typename NodeTraits, link_mode_type LinkMode = normal_link> 
struct trivial_value_traits {
  // types
  typedef NodeTraits                  node_traits;   
  typedef node_traits::node_ptr       node_ptr;      
  typedef node_traits::const_node_ptr const_node_ptr;
  typedef node_traits::node           value_type;    
  typedef node_ptr                    pointer;       
  typedef const_node_ptr              const_pointer; 

  // public static functions
  static node_ptr to_node_ptr(value_type &) ;
  static const_node_ptr to_node_ptr(const value_type &) ;
  static pointer to_value_ptr(node_ptr) ;
  static const_pointer to_value_ptr(const_node_ptr) ;
  static const link_mode_type link_mode;


This value traits template is used to create value traits from user defined node traits where value_traits::value_type and node_traits::node should be equal

trivial_value_traits public static functions

  1. static node_ptr to_node_ptr(value_type & value) ;
  2. static const_node_ptr to_node_ptr(const value_type & value) ;
  3. static pointer to_value_ptr(node_ptr n) ;
  4. static const_pointer to_value_ptr(const_node_ptr n) ;