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- /*
- * File......: FIRSTDAY.PRG
- * Author....: Jeff Bryant
- * Date......: $Date: 15 Aug 1991 23:03:38 $
- * Revision..: $Revision: 1.2 $
- * Log file..: $Logfile: E:/nanfor/src/firstday.prv $
- *
- * This function is an original work by Jeff Bryant and is placed in the
- * public domain.
- *
- * Modification history:
- * ---------------------
- *
- * $Log: E:/nanfor/src/firstday.prv $
- *
- * Rev 1.2 15 Aug 1991 23:03:38 GLENN
- * Forest Belt proofread/edited/cleaned up doc
- *
- * Rev 1.1 14 Jun 1991 19:51:54 GLENN
- * Minor edit to file header
- *
- * Rev 1.0 01 Apr 1991 01:01:24 GLENN
- * Nanforum Toolkit
- *
- */
-
-
- /* $DOC$
- * $FUNCNAME$
- * FT_FDAY()
- * $CATEGORY$
- * Date/Time
- * $ONELINER$
- * Return first day of the month
- * $SYNTAX$
- * FT_FDAY( [ <dDateToChk> ] ) -> dFirstDay
- * $ARGUMENTS$
- * <dDateToChk> is a date within a month for which you want to find
- * the first date of that month. If not passed or is an incorrect type,
- * defaults to current system date.
- * $RETURNS$
- * A Clipper date value representing the first date of the month.
- * $DESCRIPTION$
- * This function will return the first day of the month of the date
- * passed, or the first day of the current month if no argument is
- * supplied.
- * $EXAMPLES$
- * dDate := CTOD( "09/15/90" )
- * ? FT_FDAY( dDate ) // 09/01/90
- * ? FT_FDAY() // 03/01/91 (current month)
- * $SEEALSO$
- * FT_LDAY()
- * $END$
- */
-
- FUNCTION FT_FDAY(dDateToChk)
-
- IF Valtype(dDatetoChk) # "D"
- dDatetoChk := Date()
- ENDIF
-
- RETURN dDateToChk - (DAY(dDateToChk)-1)
-