The array *IN is a predefined array of 99 one-position, character elements representing the indicators 01 through 99. The elements of the array should contain only the character values '0' (zero) or '1' (one).
The specification of the *IN array or the *IN(xx) variable-index array element as a field in an input record, as a result field, or as factor 1 in a PARM operation defines indicators 01 through 99 for use in the program.
The operations or references valid for an array of single character elements are valid with the array *IN except that the array *IN cannot be specified as a subfield in a data structure, or as a result field of a PARM operation.