Values at the end of execution of the UNSTRING statement

At the beginning of the execution of the UNSTRING statement, certain operations are performed only once.

The operations are:

Calculations of subscripts, reference modifications, variable-lengths, variable locations
Evaluations of functions

Therefore, if identifier-4, identifier-5, identifier-6, identifier-7, or identifier-8 is used as a subscript, reference-modifier, or function argument in the UNSTRING statement, or affects the length or location of any of the identifiers in the UNSTRING statement, these values are determined at the beginning of the UNSTRING statement, and are not affected by any results of the UNSTRING statement.