[boost] [date_time] time_duration

From: David Abrahams (dave_at_[hidden])
Date: 2003-09-02 18:00:42

The "fractional seconds" concept is undocumented.  My guess it's
something like:

      x.fractional_seconds() == x.ticks() % seconds(1).ticks()

This needs to be nailed down.

Also, the assymetry of those nice Construction by Count factories down
to nanosec(x) with the accessors which only include units down to
seconds() but not millisec()...nanosec() is disturbing and frankly
inconvenient.

BTW, why plural hours, minutes, seconds, but singular millisec,
microsec, nanosec?

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com