NAME
firstday - return first day of the month for any date
SYNOPSIS
#include <cbase/dtypes.h>
DATE firstday (d)
DATE d;
DESCRIPTION
The function firstday returns the DATE for the first day of the month of the date passed in the d parameter.
The following returns the last day of the month for any arbitrary date:
lastday = addmonth (firstday (date), 1) - 1;
SEE ALSO
addmonth(C-3), atodate(C-3)