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As a special exception from the GPL, if other files instantiate generics from this unit, or you link this unit with other files to produce an executable, this unit does not by itself cause the resulting executable to be covered by the GPL. This exception does not however invalidate any other reasons why the executable file might be covered by the GPL.

Version: 1.1

Author:

Thomas Wolf (TW) <twolf AT acm DOT org>

Purpose:

This is a proleptic Julian calendar. The Julian calendar had been introduced by Julius Caesar in 46 B.C. and been in use since 45 B.C.

This is a proleptic calendar: it extends to dates before 45 B.C.

Although every fourth year in the Julian calendar is a leap year, a counting error made every third year between 45 B.C. and 9 B.C. a leap year, which was corrected by not having leap years from 8 B.C. until 8 A.D., which again was a leap year. This implementation does not account for that, which means that between 45 B.C. and 7 A.D. the leap years do not match the real years. (We correct the Romans' counting error.)

Note that there was no year 0! The value 0 signifies 1 B.C., -1 is 2 B.C., and so on.

Tasking Semantics

Neither task- nor abortion-safe.

Storage Semantics

No dynamic storage allocation.