date=?

Name

date=? -- Compare dates

Type: function

Synopsis

date=?( date1 date2, val);

date>?( date1 date2, val);

date>=?( date1 date2, val);

date<?( date1 date2, val);

date<=?( date1 date2, val);

Arguments

date1

An instance of <date>

date2

An instance of <date>

Return Values

val

An instance of <boolean>

Description

These functions compare dates, based on the ordering of days.

(define td (ymd->date 1997 9 14))

(define tm (ymd->date 1997 9 15))

(date<? td tm) #t

(date>=? td td) #t