* Synchronize each miscrosec test to the next second (#109)
* Synchronize each miscrosec test to the next second
The aim is to avoid false positives in test_microsec when the seconds,
minutes or hours change during time read between the second_clock and
the microsec_clock.
* Improved readability of the microcec_time_clock test
* Improve performance of adding and subtracting time durations from a ptime. (#99)
Modifying ptime objects by adding and subtracting time durations was
inefficient because it extracted the date and time of day and then
re-constructed a ptime using the date and modified time of day.
This can be avoided by using the existing time_system utilities which
perform the operation by adjusting the number of ticks.
Performance is improved by a factor of 48 on my system.
* Update CI Scripts
* Add time_duration helper functions: (#113)
1. is_positive()
- Return boolean value to indicate whether or not time duration is
positive.
2. is_zero()
- Return boolean value to indicate whether or not time duration is
zero.
3. abs()
- Return a time_duration which is the absolute value of time
duration.
Added documentation for these helper functions and improved existing
documentation to indicate constness, return values or static
functions.
* Cease dependence on MPL (#115)
also added project declarations to jamfiles, added a top level jamfile, and fixed the xmldoc jamfile
also fixed a silent failure y2038 issue in localtime handling and fixed a timezone database parse issue
