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RETURN
Purpose
RETURN
expression
;
RETURN returns control (and possibly a result) from a REXX program or internal routine to the point of its
invocation.
If no internal routine (subroutine or function) is active, RETURN and EXIT are identical in their effect on
the program that is being run, (see page “Purpose” on page 143.)
If a subroutine is being run (see the CALL instruction), expression (if any) is evaluated, control passes
back to the caller, and the REXX special variable RESULT is set to the value of expression.Ifexpression
is omitted, the special variable RESULT is dropped (becomes uninitialized). The various settings saved at
the time of the CALL (tracing, addresses, and so forth) are also restored, (see page “Purpose” on page
135.)
If a function is being processed, the action taken is identical, except that expression must be specified on
the RETURN instruction. The result of expression is then used in the original expression at the point
where the function was called. See the description of functions on page 171 for more details.
If a PROCEDURE instruction was processed within the routine (subroutine or internal function), all
variables of the current generation are dropped (and those of the previous generation are exposed) after
expression is evaluated and before the result is used or assigned to RESULT.
RETURN
Chapter 13. Keyword Instructions 161