Boost C++ Libraries

...one 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 for the latest Boost documentation.

Class template time_resolution_traits

boost::date_time::time_resolution_traits

Synopsis

// In header: <boost/date_time/time_resolution_traits.hpp>

template<typename frac_sec_type, time_resolutions res, 
         #if(defined(BOOST_MSVC)&&(_MSC_VER< 1300)) boost::int64_t resolution_adjust, 
         #else typename frac_sec_type::int_type resolution_adjust, 
         #endif unsigned short frac_digits, typename v_type = boost::int32_t> 
class time_resolution_traits {
public:
  // types
  typedef frac_sec_type::int_type  fractional_seconds_type;
  typedef frac_sec_type::int_type  tick_type;              
  typedef frac_sec_type::impl_type impl_type;              
  typedef v_type                   day_type;               
  typedef v_type                   hour_type;              
  typedef v_type                   min_type;               
  typedef v_type                   sec_type;               

  // public static functions
  static frac_sec_type::int_type as_number(typename frac_sec_type::impl_type) ;
  static bool is_adapted() ;
  static time_resolutions resolution() ;
  static unsigned short num_fractional_digits() ;
  static fractional_seconds_type res_adjust() ;
  static tick_type 
  to_tick_count(hour_type, min_type, sec_type, fractional_seconds_type) ;

  // public member functions
   BOOST_STATIC_CONSTANT(int, ticks_per_second = resolution_adjust) ;
};

Description

`time_resolution_traits` public static functions

static frac_sec_type::int_type as_number(typename frac_sec_type::impl_type i) ;

```
static bool is_adapted() ;
```
```
static time_resolutions resolution() ;
```

static unsigned short num_fractional_digits() ;

static fractional_seconds_type res_adjust() ;

static tick_type 
to_tick_count(hour_type hours, min_type minutes, sec_type seconds, 
              fractional_seconds_type fs) ;

Any negative argument results in a negative tick_count.

`time_resolution_traits` public member functions

 BOOST_STATIC_CONSTANT(int, ticks_per_second = resolution_adjust) ;