The LENGTH function returns an integer equal to the length of the argument in bytes. The function type is integer.
The function result is a 9-digit integer.
___ Format _____________________________________________________________ | | | >>__FUNCTION LENGTH__(argument-1)___________________________________>< | | | |________________________________________________________________________|
If argument-1, or any data item subordinate to argument-1, is described with the DEPENDING phrase of the OCCURS clause, the contents of the data item referenced by the data-name specified in the DEPENDING phrase are used at the time the LENGTH function is evaluated.
If argument-1 is a nonnumeric literal, an elementary data item, or a group data item that does not contain a variable occurrence data item, the value returned is an integer equal to the length of argument-1 in character positions.
If argument-1 is a group data item containing a variable occurrence data item, the returned value is an integer determined by evaluation of the data item specified in the DEPENDING phrase of the OCCURS clause for that variable occurrence data item. This evaluation is accomplished according to the rules in the OCCURS clause regarding the data item as a sending data item. For more information, see the discussions of the OCCURS clause and USAGE clause.
If argument-1 is a null-terminated nonnumeric literal, then the returned value is the number of characters in the literal excluding the null character that is added at the end of the literal.
The returned value includes implicit FILLER characters, if any.
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