HP 3000 Manuals

MPE/iX Commands Reference Manual Volume I

RETURN 

Causes execution to return from the current user command (UDC or command
file) to the calling environment.  (Native Mode)

Syntax 

     RETURN

Parameters 

None

Operation Notes 

This command terminates the execution of the currently executing user
command.  Control resumes in the calling environment at the command line
following the user command in which RETURN was embedded.  Invoking RETURN
at the CI colon (:)  prompt has no effect.

Use 

This command may be issued from a session, job, program, or in BREAK.
Pressing Break has no effect on this command.

Example 

The following example uses the RETURN command to exit from a command file
prematurely based on a parameter error condition.

     PARM ERROR_NUM
     COMMENT DISPLAY CIERR MESSAGE ASSOCIATED WITH "ERROR_NUM".
     IF NOT NUMERIC (!ERROR_NUM) THEN
        ECHO EXPECTED A NUMBER.
        RETURN
     ENDIF
     SETVAR CIERROR ABS (!ERROR_NUM)
     ECHO !HPCIERRMSG

The last two lines above can be combined as:

     ECHO ![SETVAR(CIERROR,ABS(!ERROR_NUM))] ![HPCIERRMSG]

This line causes a slightly different output because the error number
precedes the message.

Related Information 

Commands      ESCAPE

Manuals       None

MPE/iX 5.0 Documentation