cce (03/10/83)
The Applesoft BASIC programming reference manual states in page 81: "Care must be taken when handling errors that occur within FOR...NEXT loops or between GOSUB and RETURN, as the pointers and RETURN stacks disturbed. The error-handling routine must *restart* the loop, returning to the FOR or GOSUB statement, *not* the NEXT or RETURN statement. After error handling, a return to a NEXT or a RETURN will cause the appropriate message: ?NEXT WITHOUT FOR ERROR or ?RETURN WITHOUT GOSUB ERROR" I am trying to port a BASIC program written for the TRS-80 with extensive error handling. My problems/questions (flames?) are: -How 'disturbed' does the stack get? -Is this a bug or a feature? -Does this mean that you can not do error handling within a subroutine? (only within the main body?). Any solutions?