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(SRFI-19): Note Gregorian leap year rules

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incorrectly extended back prior to 1582.
This commit is contained in:
Kevin Ryde 2005-04-01 23:29:22 +00:00
parent 4eb21177ee
commit 7d281fa50f
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doc/ref/srfi-modules.texi
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@ -1632,6 +1632,17 @@ functions and variables described here are provided by
(use-modules (srfi srfi-19))
@end example
@strong{Caution}: The current code in this module incorrectly extends
the Gregorian calendar leap year rule back prior to the introduction
of those reforms in 1582 (or the appropriate year in various
countries). The Julian calendar was used prior to 1582, and there
were 10 days skipped for the reform, but the code doesn't implement
that.
This will be fixed some time. Until then calculations for 1583
onwards are correct, but prior to that any day/month/year and day of
the week calculations are wrong.
@menu
* SRFI-19 Introduction::
* SRFI-19 Time::