RETURN - mkilgore/QB64pe GitHub Wiki

RETURN is used in GOSUB procedures to return to the original call code line or a specified line label.

RETURN [{linelabel|linenumber}]

• 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.

• 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 NEXT.
• 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 "RETURN without GOSUB" error is produced.
• To avoid errors, place GOSUB procedures AFTER the main program code END or after an EXIT SUB or EXIT FUNCTION call.

FOR...NEXT a = 1 TO 10
PRINT a
IF...THEN 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

Example 2: 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.

See also:

• GOSUB, GOTO
• RESUME