RETURN is used in GOSUB procedures to return to the original call code line or a specified line label.
Syntax
RETURN [{linelabel linenumber}]
Parameter(s)
- RETURN without parameters returns to the code immediately following the original GOSUB call.
- line number or linelabel after the RETURN statement returns code execution to that label.
Usage
- Normally required at the end of a GOSUB procedure unless the procedure returns using a loop.
- RETURN is not used in error handling procedures. Error procedures use RESUME line number or RESUME.
- GOSUB procedures use line numbers or line labels designated with a colon after the number or label.
- If RETURN is encountered without a previous GOSUB call a ERROR Codes is produced.
- To avoid errors, place GOSUB procedures AFTER the main program code END or after an EXIT SUB or EXIT FUNCTION call.
Example(s)
Returns after a Gosub.
FOR a = 1 TO 10
PRINT a
IF a = 5 THEN GOSUB five
NEXT
END 'END or SYSTEM stop the program before the execution of a sub procedure
five:
PRINT "Aha! Five!"
RETURN
1
2
3
4
5
Aha! Five!
6
7
8
9
10
Returns to a specific line label.
GOSUB hey
PRINT "it didn't go here."
hoho:
PRINT "it went here."
END
hey:
RETURN hoho
it went here.