NET/MASTER Network Control Language (NCL) Reference Manual

System Variables

5–2 106126 Tandem Computers Incorporated

Note &SYSMSG is included in this section although it is not strictly a system variable. NCL uses this variable in

certain special cases connected with panel and file processing. It is similar to a user variable in that its

value can be set by the user. Unlike system variables, its value is not common to all procedures and

functions within the same NCL process. Like any other user variable, if you want to share this variable

among different procedures, you must use the SHRVARS operand of the CONTROL verb, or the

SHARE options in the CALL and PROCEDURE core statements.

System variables cannot be used to the left of an assignment statement, except for the

four modifiable system variables listed next:

&SYS.LOOPCTL

&SYS.PANEL.SKIP

&SYS.PANEL.FLD

&SYS.RETCODE

For help in understanding syntax notation, see “Notation Conventions” at the

beginning of this manual.