[Boost-bugs] [Boost C++ Libraries] #5328: Addition of increment and decrement operators to chrono::time_point

Subject: [Boost-bugs] [Boost C++ Libraries] #5328: Addition of increment and decrement operators to chrono::time_point
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-03-17 20:04:55

#5328: Addition of increment and decrement operators to chrono::time_point
---------------------------------------------------+------------------------
 Reporter:  jofaber                                |       Owner:  viboes 
     Type:  Feature Requests                       |      Status:  new    
Milestone:  Boost 1.47.0                           |   Component:  chrono 
  Version:  Boost Development Trunk                |    Severity:  Problem
 Keywords:  increment decrement chrono time_point  |  
---------------------------------------------------+------------------------
 From the viewpoint of generic interoperability fundamental operations are
 needed for possible generic recipient libraries of boost::chrono, that
 impose some fundamental requirements on their parameter types. E.g.
 Intervals and interval containers of Boost.Icl rely on the existence of an
 increment and decrement operator for intervals an interval containers of
 chrono::time_points.

 `time_point& operator++()` is an incrementation of one least steppable
 unit for integral `rep` types and a unit step for floating point `rep`
 types. It repesents one tick of the clock and is equivalent with
 incrementing the time_point's `duration`. So it can be efficiently
 implemented by incrementation of the underlying `rep_` member. This ticket
 requests the addition of the four common in/decrementation operations:

 {{{
 #!c++
 time_point& operator++()   ;
 time_point  operator++(int);
 time_point& operator--()   ;
 time_point  operator--(int);
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5328>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.