Using FASTREXX variables

File Manager supports these variables for FASTREXX processing:

• System numeric variables. See System numeric variables below for descriptions.
• System character variables. See System character variables below for descriptions.
• User character variables.
• User numeric variables.
• Tally registers.

System and tally variables are maintained by File Manager and are read-only to user procedures.

User variables are defined by SETC or SETN functions (there is an implied definition in TESTC and TESTN functions for variables that do not exist). These variables can be referenced and modified by these functions:

Table 1. Batch update status and action

Function	Reference	Modify
CHG_VAR	Y	Y
CHG_OUT	Y	N
FLDI	Y	N
FLDO	Y	N
OVLY_VAR	Y	Y
OVLY_OUT	Y	N
SETC	Y	Y
SETN	Y	Y
TESTC	Y	N
TESTN	Y	N
VAR_OUT	Y	N
VAR_TM	Y	N

A user variable persists from its creation by a procedure to the end of the File Manager invocation. This allows any number of procedures run within the same File Manager invocation to refer to the same variables.

Table 2. System character variables

Name	Description
ZINREC	Input record
ZOUTREC	Output record
ZMEMBERI	Input member name
ZMEMBERO	Output member name
ZDSNIN	Input data set name
ZDSNOUT	Output data set name

Table 3. System numeric variables

Name	Description
ZRECSIN	Input record count
ZRECSOUT	Output record count