ABAP Keyword Documentation →  ABAP - Reference →  Processing Internal Data →  Character String and Byte String Processing →  Expressions and Functions for String Processing →  String Functions →  Common Parameters of Character String Functions 

off, len - Offset and Length

Other versions: 7.31 | 7.40 | 7.54

Syntax

... ( ... off = off len = len ...  ) ...

Effect

off is used to pass an offset and len to pass a length. In functions in which off and len can be passed simultaneously, they determine the subarea in which a character string is to be processed.

off and len are numerical expression positions.

The default value of off is generally 0 and the default value of len is generally the length of the character string minus a predefined offset or an offset specified using off. If, in functions for which this is supported, a negative argument is also passed for occ, the default value of off is the length of the character string, and the default value of len is the value of the corresponding offset.

If off or len has a negative value, an offset defined using off is not within the character string, or a subarea defined by off und len is not completely contained in the character string, an exception of class CX_SY_RANGE_OUT_OF_BOUNDS is triggered.