Re: Advice on Calendar.Time

[Wilhelm Spickermann <zulo.20.unbenutzbar@spamgourmet.com>]

REH wrote:

> Butï¿œIï¿œdon'tï¿œthinkï¿œthereï¿œisï¿œanythingï¿œthatï¿œis,ï¿œorï¿œshouldï¿œbe,
> OS-dependent with dates and time-of-day, or timezones, or GMT,
> or UTC, or DST, or leap seconds, etc.ￜￜTheseￜconceptsￜareￜwell
> definedï¿œandï¿œdo not change from platform to platform.

I agree. But as the run time system normally depends on the OS
time services it depends on the configuration of these services. 

But even after having the operating system configured in a way
such that we have no DST and and no posix handling of leap
seconds, there will be at least one remaining problem:
Ada.Calendar is inherently POSIX: Day_Duration is too short for
a leap second and Time_Of called with a seconds value of
86_400.0 is forced by ARM 9.6-25 to return the same value as
Time_Of for the next day with seconds value of 0.0.

Wilhelm