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RPG-free routine to calculate dates
One user writes, "I thought that I saw somewhere an RPG-free routine using %DATE (bif) to calculate the day of the week. For example, MON, TUE, etc.? I need to place the day on a screen." Development expert John Blenkinsop responds.
I thought that I saw somewhere an RPG-free routine using %DATE (bif) to calculate the day of the week. For example, MON, TUE, etc.? I need to place the day on a screen.
Try this from Midrange.com.
*// Procedure: DayOfWeek // *// Purpose: Determine the day of week for a particular date // *// Parameters: // *// I: dt -- date // *// Returns: // *// 0..6 -- 0=Sunday, 1=Monday, 2=Tuesday, etc. // *// Notes: // *// January 5, 1800 is a Sunday. This procedure only works for // *// dates later than 1800-01-05. // *//////////////////////////////////// P DayOfWeek b D DayOfWeek pi 10i 0 D dt d value datfmt(*iso) /free return %rem (%diff (dt: d'1800-01-05': *days): 7); /end-free P DayOfWeek e
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